{"product_id":"zwo-ff70-apo-flat-field-apochromatic-refractor","title":"ZWO FF70 APO Flat-Field Apochromatic Refractor","description":"\u003cp\u003e\u003ca href=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d6e23c76c054f4d3ad6f5710afc5f90.jpg\" rel=\"magnific\" class=\"inited\" data-elementor-open-lightbox=\"no\"\u003e\u003cimg decoding=\"async\" class=\"alignnone size-full wp-image-92583\" src=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d6e23c76c054f4d3ad6f5710afc5f90.jpg\" alt=\"\" width=\"1200\" height=\"600\" srcset=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d6e23c76c054f4d3ad6f5710afc5f90.jpg 1200w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d6e23c76c054f4d3ad6f5710afc5f90-300x150.jpg 300w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d6e23c76c054f4d3ad6f5710afc5f90-1024x512.jpg 1024w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d6e23c76c054f4d3ad6f5710afc5f90-768x384.jpg 768w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d6e23c76c054f4d3ad6f5710afc5f90-370x185.jpg 370w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d6e23c76c054f4d3ad6f5710afc5f90-840x420.jpg 840w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d6e23c76c054f4d3ad6f5710afc5f90-410x205.jpg 410w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d6e23c76c054f4d3ad6f5710afc5f90-24x12.jpg 24w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d6e23c76c054f4d3ad6f5710afc5f90-36x18.jpg 36w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d6e23c76c054f4d3ad6f5710afc5f90-48x24.jpg 48w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d6e23c76c054f4d3ad6f5710afc5f90-730x365.jpg 730w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eLightweight \u0026amp; Compact · Designed for Both Visual Observation and Astrophotography\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/833c636279ea783e9162f8bf9e7b77a1.jpg\" rel=\"magnific\" class=\"inited\" data-elementor-open-lightbox=\"no\"\u003e\u003cimg decoding=\"async\" class=\"alignnone size-full wp-image-92584\" src=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/833c636279ea783e9162f8bf9e7b77a1.jpg\" alt=\"\" width=\"1200\" height=\"600\" srcset=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/833c636279ea783e9162f8bf9e7b77a1.jpg 1200w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/833c636279ea783e9162f8bf9e7b77a1-300x150.jpg 300w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/833c636279ea783e9162f8bf9e7b77a1-1024x512.jpg 1024w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/833c636279ea783e9162f8bf9e7b77a1-768x384.jpg 768w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/833c636279ea783e9162f8bf9e7b77a1-370x185.jpg 370w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/833c636279ea783e9162f8bf9e7b77a1-840x420.jpg 840w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/833c636279ea783e9162f8bf9e7b77a1-410x205.jpg 410w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/833c636279ea783e9162f8bf9e7b77a1-24x12.jpg 24w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/833c636279ea783e9162f8bf9e7b77a1-36x18.jpg 36w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/833c636279ea783e9162f8bf9e7b77a1-48x24.jpg 48w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/833c636279ea783e9162f8bf9e7b77a1-730x365.jpg 730w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e*Focus can be achieved within a back focus range of 32.5–82.5 mm, measured from the M54–M48 interface shoulder.\u003c\/p\u003e\n\u003ch3\u003eMain Features\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/f2c939c5eb17fc0b905e0daf2fb5b6c9.jpg\" rel=\"magnific\" class=\"inited\" data-elementor-open-lightbox=\"no\"\u003e\u003cimg decoding=\"async\" class=\"alignnone size-full wp-image-92585\" src=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/f2c939c5eb17fc0b905e0daf2fb5b6c9.jpg\" alt=\"\" width=\"1200\" height=\"800\" srcset=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/f2c939c5eb17fc0b905e0daf2fb5b6c9.jpg 1200w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/f2c939c5eb17fc0b905e0daf2fb5b6c9-300x200.jpg 300w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/f2c939c5eb17fc0b905e0daf2fb5b6c9-1024x683.jpg 1024w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/f2c939c5eb17fc0b905e0daf2fb5b6c9-768x512.jpg 768w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/f2c939c5eb17fc0b905e0daf2fb5b6c9-370x247.jpg 370w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/f2c939c5eb17fc0b905e0daf2fb5b6c9-840x560.jpg 840w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/f2c939c5eb17fc0b905e0daf2fb5b6c9-410x273.jpg 410w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/f2c939c5eb17fc0b905e0daf2fb5b6c9-24x16.jpg 24w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/f2c939c5eb17fc0b905e0daf2fb5b6c9-36x24.jpg 36w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/f2c939c5eb17fc0b905e0daf2fb5b6c9-48x32.jpg 48w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/f2c939c5eb17fc0b905e0daf2fb5b6c9-730x487.jpg 730w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFlexible Connectivity for Multiple Configurations\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/2b2fd898d619b23076870397011e4a83.jpg\" rel=\"magnific\" class=\"inited\" data-elementor-open-lightbox=\"no\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-92586\" src=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/2b2fd898d619b23076870397011e4a83.jpg\" alt=\"\" width=\"1200\" height=\"600\" srcset=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/2b2fd898d619b23076870397011e4a83.jpg 1200w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/2b2fd898d619b23076870397011e4a83-300x150.jpg 300w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/2b2fd898d619b23076870397011e4a83-1024x512.jpg 1024w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/2b2fd898d619b23076870397011e4a83-768x384.jpg 768w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/2b2fd898d619b23076870397011e4a83-370x185.jpg 370w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/2b2fd898d619b23076870397011e4a83-840x420.jpg 840w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/2b2fd898d619b23076870397011e4a83-410x205.jpg 410w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/2b2fd898d619b23076870397011e4a83-24x12.jpg 24w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/2b2fd898d619b23076870397011e4a83-36x18.jpg 36w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/2b2fd898d619b23076870397011e4a83-48x24.jpg 48w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/2b2fd898d619b23076870397011e4a83-730x365.jpg 730w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eUniqueness\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\u003cstrong\u003eLightweight \u0026amp; Compact\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe ZWO FF70 APO features a 70 mm aperture and 490 mm focal length (f\/7.0), offering an excellent balance between portability and performance.\u003cbr\u003eThe optical tube weighs just 2.5 kg, with a total system weight of 3 kg including mounting rings and dovetail plate.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/8333bbe2a26638ad33990879eb8902bf.jpg\" rel=\"magnific\" class=\"inited\" data-elementor-open-lightbox=\"no\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-92587\" src=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/8333bbe2a26638ad33990879eb8902bf.jpg\" alt=\"\" width=\"1200\" height=\"600\" srcset=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/8333bbe2a26638ad33990879eb8902bf.jpg 1200w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/8333bbe2a26638ad33990879eb8902bf-300x150.jpg 300w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/8333bbe2a26638ad33990879eb8902bf-1024x512.jpg 1024w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/8333bbe2a26638ad33990879eb8902bf-768x384.jpg 768w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/8333bbe2a26638ad33990879eb8902bf-370x185.jpg 370w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/8333bbe2a26638ad33990879eb8902bf-840x420.jpg 840w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/8333bbe2a26638ad33990879eb8902bf-410x205.jpg 410w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/8333bbe2a26638ad33990879eb8902bf-24x12.jpg 24w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/8333bbe2a26638ad33990879eb8902bf-36x18.jpg 36w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/8333bbe2a26638ad33990879eb8902bf-48x24.jpg 48w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/8333bbe2a26638ad33990879eb8902bf-730x365.jpg 730w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\u003cstrong\u003eFour-Element Optical Design\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe FF70 APO features a four-element, fully air-spaced apochromatic optical design. All four elements work together to deliver a flat imaging field without the need for an additional field flattener.\u003cbr\u003eOne ED (extra-low dispersion) glass element is incorporated to effectively reduce chromatic aberration, resulting in improved color correction and image clarity.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/1395efd5c3101e6c6d0a2436daa434e8.jpg\" rel=\"magnific\" class=\"inited\" data-elementor-open-lightbox=\"no\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-92588\" src=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/1395efd5c3101e6c6d0a2436daa434e8.jpg\" alt=\"\" width=\"1200\" height=\"700\" srcset=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/1395efd5c3101e6c6d0a2436daa434e8.jpg 1200w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/1395efd5c3101e6c6d0a2436daa434e8-300x175.jpg 300w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/1395efd5c3101e6c6d0a2436daa434e8-1024x597.jpg 1024w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/1395efd5c3101e6c6d0a2436daa434e8-768x448.jpg 768w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/1395efd5c3101e6c6d0a2436daa434e8-370x216.jpg 370w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/1395efd5c3101e6c6d0a2436daa434e8-840x490.jpg 840w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/1395efd5c3101e6c6d0a2436daa434e8-410x239.jpg 410w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/1395efd5c3101e6c6d0a2436daa434e8-24x14.jpg 24w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/1395efd5c3101e6c6d0a2436daa434e8-36x21.jpg 36w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/1395efd5c3101e6c6d0a2436daa434e8-48x28.jpg 48w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/1395efd5c3101e6c6d0a2436daa434e8-730x426.jpg 730w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\u003cstrong\u003e44 mm Image Circle — Full-Frame Support\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eWith a 44 mm image circle, the FF70 APO fully supports full-frame sensors and a wide range of imaging setups.\u003cbr\u003eIt delivers sharp star fields with excellent edge-to-edge performance, ensuring consistent image quality across the entire frame.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/81e69413fbcb29ed56f7d92ec148b5c0.jpg\" rel=\"magnific\" class=\"inited\" data-elementor-open-lightbox=\"no\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-92589\" src=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/81e69413fbcb29ed56f7d92ec148b5c0.jpg\" alt=\"\" width=\"1200\" height=\"600\" srcset=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/81e69413fbcb29ed56f7d92ec148b5c0.jpg 1200w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/81e69413fbcb29ed56f7d92ec148b5c0-300x150.jpg 300w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/81e69413fbcb29ed56f7d92ec148b5c0-1024x512.jpg 1024w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/81e69413fbcb29ed56f7d92ec148b5c0-768x384.jpg 768w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/81e69413fbcb29ed56f7d92ec148b5c0-370x185.jpg 370w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/81e69413fbcb29ed56f7d92ec148b5c0-840x420.jpg 840w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/81e69413fbcb29ed56f7d92ec148b5c0-410x205.jpg 410w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/81e69413fbcb29ed56f7d92ec148b5c0-24x12.jpg 24w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/81e69413fbcb29ed56f7d92ec148b5c0-36x18.jpg 36w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/81e69413fbcb29ed56f7d92ec148b5c0-48x24.jpg 48w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/81e69413fbcb29ed56f7d92ec148b5c0-730x365.jpg 730w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003col start=\"4\"\u003e\n\u003cli\u003e\u003cstrong\u003eNative Flat-Field Design\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe FF70 APO features a native flat-field optical design, eliminating the need for an additional field flattener.\u003cbr\u003eNo complex back focus calculations or spacing adjustments are required—simply attach your imaging setup and start capturing once focus is achieved.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5414d4f09c10775213d41954688155a8.jpg\" rel=\"magnific\" class=\"inited\" data-elementor-open-lightbox=\"no\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-92590\" src=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5414d4f09c10775213d41954688155a8.jpg\" alt=\"\" width=\"1200\" height=\"800\" srcset=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5414d4f09c10775213d41954688155a8.jpg 1200w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5414d4f09c10775213d41954688155a8-300x200.jpg 300w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5414d4f09c10775213d41954688155a8-1024x683.jpg 1024w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5414d4f09c10775213d41954688155a8-768x512.jpg 768w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5414d4f09c10775213d41954688155a8-370x247.jpg 370w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5414d4f09c10775213d41954688155a8-840x560.jpg 840w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5414d4f09c10775213d41954688155a8-410x273.jpg 410w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5414d4f09c10775213d41954688155a8-24x16.jpg 24w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5414d4f09c10775213d41954688155a8-36x24.jpg 36w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5414d4f09c10775213d41954688155a8-48x32.jpg 48w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5414d4f09c10775213d41954688155a8-730x487.jpg 730w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eConvenient Design\u003c\/h3\u003e\n\u003col start=\"5\"\u003e\n\u003cli\u003e\u003cstrong\u003eCoarse \u0026amp; fine focus adjustment\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eEquipped with a rigid 2.4-inch rack-and-pinion focuser, the FF70 APO offers precise control with a 1:10 coarse \u0026amp; fine focus adjustment mechanism.\u003cbr\u003eA built-in 360° rotator at the rear allows for smooth and accurate camera angle adjustments.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d73751781d9d92821e54725009cd429.jpg\" rel=\"magnific\" class=\"inited\" data-elementor-open-lightbox=\"no\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-92591\" src=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d73751781d9d92821e54725009cd429.jpg\" alt=\"\" width=\"1200\" height=\"800\" srcset=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d73751781d9d92821e54725009cd429.jpg 1200w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d73751781d9d92821e54725009cd429-300x200.jpg 300w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d73751781d9d92821e54725009cd429-1024x683.jpg 1024w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d73751781d9d92821e54725009cd429-768x512.jpg 768w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d73751781d9d92821e54725009cd429-370x247.jpg 370w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d73751781d9d92821e54725009cd429-840x560.jpg 840w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d73751781d9d92821e54725009cd429-410x273.jpg 410w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d73751781d9d92821e54725009cd429-24x16.jpg 24w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d73751781d9d92821e54725009cd429-36x24.jpg 36w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d73751781d9d92821e54725009cd429-48x32.jpg 48w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/3d73751781d9d92821e54725009cd429-730x487.jpg 730w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003col start=\"6\"\u003e\n\u003cli\u003e\u003cstrong\u003eRetractable Dew Shield \u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe FF70 APO features a retractable dew shield, reducing overall length for improved portability.\u003cbr\u003ePrecision CNC machining and a high-quality painted finish, combined with an internal anti-reflection coating, help minimize stray light and enhance image contrast.\u003c\/p\u003e\n\u003col start=\"7\"\u003e\n\u003cli\u003e\u003cstrong\u003eQuick-Release Mounting Rings\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe mounting rings are detachable, allowing for quick and easy setup or teardown of the telescope.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5270638ce0cadc1299e00afe59f027dd.jpg\" rel=\"magnific\" class=\"inited\" data-elementor-open-lightbox=\"no\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-92592\" src=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5270638ce0cadc1299e00afe59f027dd.jpg\" alt=\"\" width=\"1200\" height=\"600\" srcset=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5270638ce0cadc1299e00afe59f027dd.jpg 1200w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5270638ce0cadc1299e00afe59f027dd-300x150.jpg 300w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5270638ce0cadc1299e00afe59f027dd-1024x512.jpg 1024w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5270638ce0cadc1299e00afe59f027dd-768x384.jpg 768w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5270638ce0cadc1299e00afe59f027dd-370x185.jpg 370w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5270638ce0cadc1299e00afe59f027dd-840x420.jpg 840w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5270638ce0cadc1299e00afe59f027dd-410x205.jpg 410w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5270638ce0cadc1299e00afe59f027dd-24x12.jpg 24w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5270638ce0cadc1299e00afe59f027dd-36x18.jpg 36w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5270638ce0cadc1299e00afe59f027dd-48x24.jpg 48w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/5270638ce0cadc1299e00afe59f027dd-730x365.jpg 730w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003col start=\"8\"\u003e\n\u003cli\u003e\u003cstrong\u003ePhotography Extension Tube \u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe FF70 APO includes a photography extension tube with a 2-inch filter thread, along with rear adapters in M48×0.75 and M54×0.75 standards.\u003cbr\u003eThis allows for easy integration with a wide range of imaging accessories.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/fdd9cd45b76060d52b804741f89a1e03.jpg\" rel=\"magnific\" class=\"inited\" data-elementor-open-lightbox=\"no\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-92593\" src=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/fdd9cd45b76060d52b804741f89a1e03.jpg\" alt=\"\" width=\"1200\" height=\"600\" srcset=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/fdd9cd45b76060d52b804741f89a1e03.jpg 1200w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/fdd9cd45b76060d52b804741f89a1e03-300x150.jpg 300w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/fdd9cd45b76060d52b804741f89a1e03-1024x512.jpg 1024w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/fdd9cd45b76060d52b804741f89a1e03-768x384.jpg 768w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/fdd9cd45b76060d52b804741f89a1e03-370x185.jpg 370w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/fdd9cd45b76060d52b804741f89a1e03-840x420.jpg 840w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/fdd9cd45b76060d52b804741f89a1e03-410x205.jpg 410w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/fdd9cd45b76060d52b804741f89a1e03-24x12.jpg 24w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/fdd9cd45b76060d52b804741f89a1e03-36x18.jpg 36w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/fdd9cd45b76060d52b804741f89a1e03-48x24.jpg 48w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/fdd9cd45b76060d52b804741f89a1e03-730x365.jpg 730w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003ePerformance\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eOptical Layout\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/ed701f5dc6a2959a51b6869521ca0114.jpg\" rel=\"magnific\" class=\"inited\" data-elementor-open-lightbox=\"no\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-92594\" src=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/ed701f5dc6a2959a51b6869521ca0114.jpg\" alt=\"\" width=\"1200\" height=\"800\" srcset=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/ed701f5dc6a2959a51b6869521ca0114.jpg 1200w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/ed701f5dc6a2959a51b6869521ca0114-300x200.jpg 300w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/ed701f5dc6a2959a51b6869521ca0114-1024x683.jpg 1024w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/ed701f5dc6a2959a51b6869521ca0114-768x512.jpg 768w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/ed701f5dc6a2959a51b6869521ca0114-370x247.jpg 370w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/ed701f5dc6a2959a51b6869521ca0114-840x560.jpg 840w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/ed701f5dc6a2959a51b6869521ca0114-410x273.jpg 410w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/ed701f5dc6a2959a51b6869521ca0114-24x16.jpg 24w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/ed701f5dc6a2959a51b6869521ca0114-36x24.jpg 36w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/ed701f5dc6a2959a51b6869521ca0114-48x32.jpg 48w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/ed701f5dc6a2959a51b6869521ca0114-730x487.jpg 730w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStar Field Map\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/7231ffe627f324851d2d642f530a920c.jpg\" rel=\"magnific\" class=\"inited\" data-elementor-open-lightbox=\"no\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-92595\" src=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/7231ffe627f324851d2d642f530a920c.jpg\" alt=\"\" width=\"1200\" height=\"800\" srcset=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/7231ffe627f324851d2d642f530a920c.jpg 1200w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/7231ffe627f324851d2d642f530a920c-300x200.jpg 300w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/7231ffe627f324851d2d642f530a920c-1024x683.jpg 1024w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/7231ffe627f324851d2d642f530a920c-768x512.jpg 768w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/7231ffe627f324851d2d642f530a920c-370x247.jpg 370w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/7231ffe627f324851d2d642f530a920c-840x560.jpg 840w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/7231ffe627f324851d2d642f530a920c-410x273.jpg 410w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/7231ffe627f324851d2d642f530a920c-24x16.jpg 24w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/7231ffe627f324851d2d642f530a920c-36x24.jpg 36w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/7231ffe627f324851d2d642f530a920c-48x32.jpg 48w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/7231ffe627f324851d2d642f530a920c-730x487.jpg 730w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Diagram\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/b3b7bf32439901afa55daa92c6eaa638.jpg\" rel=\"magnific\" class=\"inited\" data-elementor-open-lightbox=\"no\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-92596\" src=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/b3b7bf32439901afa55daa92c6eaa638.jpg\" alt=\"\" width=\"1200\" height=\"1500\" srcset=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/b3b7bf32439901afa55daa92c6eaa638.jpg 1200w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/b3b7bf32439901afa55daa92c6eaa638-240x300.jpg 240w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/b3b7bf32439901afa55daa92c6eaa638-819x1024.jpg 819w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/b3b7bf32439901afa55daa92c6eaa638-768x960.jpg 768w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/b3b7bf32439901afa55daa92c6eaa638-370x463.jpg 370w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/b3b7bf32439901afa55daa92c6eaa638-840x1050.jpg 840w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/b3b7bf32439901afa55daa92c6eaa638-410x513.jpg 410w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/b3b7bf32439901afa55daa92c6eaa638-19x24.jpg 19w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/b3b7bf32439901afa55daa92c6eaa638-29x36.jpg 29w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/b3b7bf32439901afa55daa92c6eaa638-38x48.jpg 38w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/b3b7bf32439901afa55daa92c6eaa638-730x913.jpg 730w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/552c654cd151f27b678e24bee2223ad6.jpg\" rel=\"magnific\" class=\"inited\" data-elementor-open-lightbox=\"no\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-92597\" src=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/552c654cd151f27b678e24bee2223ad6.jpg\" alt=\"\" width=\"1200\" height=\"1900\" srcset=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/552c654cd151f27b678e24bee2223ad6.jpg 1200w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/552c654cd151f27b678e24bee2223ad6-189x300.jpg 189w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/552c654cd151f27b678e24bee2223ad6-647x1024.jpg 647w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/552c654cd151f27b678e24bee2223ad6-768x1216.jpg 768w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/552c654cd151f27b678e24bee2223ad6-970x1536.jpg 970w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/552c654cd151f27b678e24bee2223ad6-370x586.jpg 370w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/552c654cd151f27b678e24bee2223ad6-840x1330.jpg 840w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/552c654cd151f27b678e24bee2223ad6-410x649.jpg 410w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/552c654cd151f27b678e24bee2223ad6-15x24.jpg 15w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/552c654cd151f27b678e24bee2223ad6-23x36.jpg 23w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/552c654cd151f27b678e24bee2223ad6-30x48.jpg 30w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/552c654cd151f27b678e24bee2223ad6-730x1156.jpg 730w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eWhat’s in the box?\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/6ae24f60c0ab1c9c0994e978b5d4078a.jpg\" rel=\"magnific\" class=\"inited\" data-elementor-open-lightbox=\"no\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-92598\" src=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/6ae24f60c0ab1c9c0994e978b5d4078a.jpg\" alt=\"\" width=\"1200\" height=\"900\" srcset=\"https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/6ae24f60c0ab1c9c0994e978b5d4078a.jpg 1200w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/6ae24f60c0ab1c9c0994e978b5d4078a-300x225.jpg 300w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/6ae24f60c0ab1c9c0994e978b5d4078a-1024x768.jpg 1024w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/6ae24f60c0ab1c9c0994e978b5d4078a-768x576.jpg 768w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/6ae24f60c0ab1c9c0994e978b5d4078a-370x278.jpg 370w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/6ae24f60c0ab1c9c0994e978b5d4078a-840x630.jpg 840w, https:\/\/i.zwoastro.com\/wp-content\/uploads\/2026\/06\/6ae24f60c0ab1c9c0994e978b5d4078a-410x308.jpg 410w, 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