Antlia
Antlia 4.5nm Narrowband H-alpha (Ha) EDGE Filter
Antlia 4.5nm Narrowband H-alpha (Ha) EDGE Filter
Out of stock
Couldn't load pickup availability
- RazorPay Secure Payment & EMI
- All India Fast & Free Shipping
- Replacement Guarantee
| Size | 1.25'' Mounted | Price | US$185.00 |
| CWL | 656.3nm | FWHM | 4.5nm |
| Filter Model | H-alpha Narrowband | Brand | Antlia |
Antlia H-alpha EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The suppression of optical density (OD)5 on unwanted wavelengths and the excellent transmittance characteristics found in the Antlia 3nm Pro series has been incorporated into the 4.5nm EDGE narrowband filters. The result is that these filters deliver superior SNR(signal to noise ratio) and better contrast in your images.
Antlia H-alpha 4.5nm EGDE filters are designed to deliver high transmittance at the 656.3nm line that provides you with the maximum signal to reveal the faintest H-alpha nebulae structures.
Conventional broader narrowband filters cause a heavy loss in transmission due to the strong Center Wavelength (CWL)-shift. We guarantee T>90% within 1nm range of the center bandwidth, which means that the H-alpha 4.5nm EDGE narrowband filters can guarantee high transmittance for working with both long focal ratios and fast optical systems. Blue-shift data shows that Antlia 4.5nm EDGE filters can be used with nearly all systems as fast as f/3 with minimal loss in emission signal and meets the requirements of fast optics.
Application and Performance:
High transmittance and narrow bandwidth to maximize contrast
Steep spectral profile minimizes halos around bright stars
A single substrate to eliminate internal reflections
Narrowband Objects: H-alpha Emission Nebulae, Planetary, Wolf Rayet Nebulae and Supernova Remnants
Use in light polluted areas and dark sites
Extends imaging time when the moon is up
Antlia narrowband EDGE filters can be used down to f/3 systems with minimal loss of signal
All Antlia unmounted filters are edge blackened to eliminate internal reflections from stray light
Superior optical reliability reduces post image processing
This filter is only effective for deep sky objects that contain H-alpha emissions
Technical Specifications:
Basic Substrate: Optical, Single / Non-glued substrate
Filter Thickness: 2mm+/-0.05mm for 1.25”
FWHM (Full width at half maximum): 4.5nm
CWL (Central Wavelength): 656.3nm
Peak Transmission:＞90% Blocking: > 5 OD (out of band blocking) @ 300-1000nm
Surface Quality: S/D (scratch/dig)= 60/40 (Refer to MIL-O-13830)
Transmitted Wavefront: Lambda/4 or better. Parallelism: less than 30 arcsec
Warranty: 3-years against delamination
Spectrum Curve:
Filter Ring: 1.25'' (M28.5*0.6)
Not Recommended:
Solar imaging
Night visual observation
Not Permitted:
DO NOT LOOK AT THE SUN WITH THIS FILTER
Serious eye damage will result if you fail to observe the warning.
| Size | 2'' Mounted | Price | US$290.00 |
| CWL | 656.3nm | FWHM | 4.5nm |
| Filter Model | H-alpha Narrowband | Brand | Antlia |
Antlia H-alpha EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The suppression of optical density (OD)5 on unwanted wavelengths and the excellent transmittance characteristics found in the Antlia 3nm Pro series has been incorporated into the 4.5nm EDGE narrowband filters. The result is that these filters deliver superior SNR(signal to noise ratio) and better contrast in your images.
Antlia H-alpha 4.5nm EGDE filters are designed to deliver high transmittance at the 656.3nm line that provides you with the maximum signal to reveal the faintest H-alpha nebulae structures.
Conventional broader narrowband filters cause a heavy loss in transmission due to the strong Center Wavelength (CWL)-shift. We guarantee T>90% within 1nm range of the center bandwidth, which means that the H-alpha 4.5nm EDGE narrowband filters can guarantee high transmittance for working with both long focal ratios and fast optical systems. Blue-shift data shows that Antlia 4.5nm EDGE filters can be used with nearly all systems as fast as f/3 with minimal loss in emission signal and meets the requirements of fast optics.
Application and Performance:
High transmittance and narrow bandwidth to maximize contrast
Steep spectral profile minimizes halos around bright stars
A single substrate to eliminate internal reflections
Narrowband Objects: H-alpha Emission Nebulae, Planetary, Wolf Rayet Nebulae and Supernova Remnants
Use in light polluted areas and dark sites
Extends imaging time when the moon is up
Antlia narrowband EDGE filters can be used down to f/3 systems with minimal loss of signal
All Antlia unmounted filters are edge blackened to eliminate internal reflections from stray light
Superior optical reliability reduces post image processing
This filter is only effective for deep sky objects that contain H-alpha emissions
Technical Specifications:
Basic Substrate: Optical, Single / Non-glued substrate
Filter Thickness: 2mm+/-0.05mm for 2”
FWHM (Full width at half maximum): 4.5nm
CWL (Central Wavelength): 656.3nm
Peak Transmission:＞90% Blocking: > 5 OD (out of band blocking) @ 300-1000nm
Surface Quality: S/D (scratch/dig)= 60/40 (Refer to MIL-O-13830)
Transmitted Wavefront: Lambda/4 or better. Parallelism: less than 30 arcsec
Warranty: 3-years against delamination
Spectrum Curve:
Filter Ring: 2'' (M48*0.75)
Not Recommended:
Solar imaging
Night visual observation
Not Permitted:
DO NOT LOOK AT THE SUN WITH THIS FILTER
Serious eye damage will result if you fail to observe the warning
| Size | 31mm Unmounted | Price | US$195.00 |
| CWL | 656.3nm | FWHM | 4.5nm |
| Filter Model | H-alpha Narrowband | Brand | Antlia |
Antlia H-alpha EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The suppression of optical density (OD)5 on unwanted wavelengths and the excellent transmittance characteristics found in the Antlia 3nm Pro series has been incorporated into the 4.5nm EDGE narrowband filters. The result is that these filters deliver superior SNR(signal to noise ratio) and better contrast in your images.
Antlia H-alpha 4.5nm EGDE filters are designed to deliver high transmittance at the 656.3nm line that provides you with the maximum signal to reveal the faintest H-alpha nebulae structures.
Conventional broader narrowband filters cause a heavy loss in transmission due to the strong Center Wavelength (CWL)-shift. We guarantee T>90% within 1nm range of the center bandwidth, which means that the H-alpha 4.5nm EDGE narrowband filters can guarantee high transmittance for working with both long focal ratios and fast optical systems. Blue-shift data shows that Antlia 4.5nm EDGE filters can be used with nearly all systems as fast as f/3 with minimal loss in emission signal and meets the requirements of fast optics.
Application and Performance:
High transmittance and narrow bandwidth to maximize contrast
Steep spectral profile minimizes halos around bright stars
A single substrate to eliminate internal reflections
Narrowband Objects: H-alpha Emission Nebulae, Planetary, Wolf Rayet Nebulae and Supernova Remnants
Use in light polluted areas and dark sites
Extends imaging time when the moon is up
Antlia narrowband EDGE filters can be used down to f/3 systems with minimal loss of signal
All Antlia unmounted filters are edge blackened to eliminate internal reflections from stray light
Superior optical reliability reduces post image processing
This filter is only effective for deep sky objects that contain H-alpha emissions
Technical Specifications:
Basic Substrate: Optical, Single / Non-glued substrate
Filter Thickness: 2mm+/-0.05mm for Dia31mm
FWHM (Full width at half maximum): 4.5nm
CWL (Central Wavelength): 656.3nm
Peak Transmission:＞90% Blocking: > 5 OD (out of band blocking) @ 300-1000nm
Surface Quality: S/D (scratch/dig)= 60/40 (Refer to MIL-O-13830)
Transmitted Wavefront: Lambda/4 or better. Parallelism: less than 30 arcsec
Warranty: 3-years against delamination
Spectrum Curve:
Not Recommended:
Solar imaging
Night visual observation
Not Permitted:
DO NOT LOOK AT THE SUN WITH THIS FILTER
Serious eye damage will result if you fail to observe the warning
Antlia H-alpha EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The suppression of optical density (OD)5 on unwanted wavelengths and the excellent transmittance characteristics found in the Antlia 3nm Pro series has been incorporated into the 4.5nm EDGE narrowband filters. The result is that these filters deliver superior SNR(signal to noise ratio) and better contrast in your images. Antlia H-alpha 4.5nm EGDE filters are designed to deliver high transmittance at the 656.3nm line that provides you with the maximum signal to reveal the faintest H-alpha nebulae structures. Conventional broader narrowband filters cause a heavy loss in transmission due to the strong Center Wavelength (CWL)-shift. We guarantee T>90% within 1nm range of the center bandwidth, which means that the H-alpha 4.5nm EDGE narrowband filters can guarantee high transmittance for working with both long focal ratios and fast optical systems. Blue-shift data shows that Antlia 4.5nm EDGE filters can be used with nearly all systems as fast as f/3 with minimal loss in emission signal and meets the requirements of fast optics. Application and Performance: High transmittance and narrow bandwidth to maximize contrast Steep spectral profile minimizes halos around bright stars A single substrate to eliminate internal reflections Narrowband Objects: H-alpha Emission Nebulae, Planetary, Wolf Rayet Nebulae and Supernova Remnants Use in light polluted areas and dark sites Extends imaging time when the moon is up Antlia narrowband EDGE filters can be used down to f/3 systems with minimal loss of signal All Antlia unmounted filters are edge blackened to eliminate internal reflections from stray light Superior optical reliability reduces post image processing This filter is only effective for deep sky objects that contain H-alpha emissions Technical Specifications: Basic Substrate: Optical, Single / Non-glued substrate Filter Thickness: 2mm+/-0.05mm for Dia36mm FWHM (Full width at half maximum): 4.5nm CWL (Central Wavelength): 656.3nm Peak Transmission:＞90% Blocking: > 5 OD (out of band blocking) @ 300-1000nm Surface Quality: S/D (scratch/dig)= 60/40 (Refer to MIL-O-13830) Transmitted Wavefront: Lambda/4 or better. Parallelism: less than 30 arcsec Warranty: 3-years against delamination Spectrum Curve:
Not Recommended: Solar imaging Night visual observation Not Permitted: DO NOT LOOK AT THE SUN WITH THIS FILTER Serious eye damage will result if you fail to observe the warning
|
EDISLA Pre-Order: Source Anything
Research It
Find the product you want.
Talk to Us
Get expert guidance fast.
We Source It
Delivered within 4 weeks.
Enjoy It
Be happy with your gear.
Research It
Find the product you want.
Talk to Us
Get expert guidance fast.
We Source It
Delivered within 4 weeks.
Enjoy It
Be happy with your gear.
Got a question?
what we get asked most often
Are the prices all-inclusive?
Yes. The price you see is the price you'll pay. All taxes are included. Free shipping on all orders.
What's the stock status of the products on your site?
We list only in-stock items on our website that can be shipped right away. Sold out products are out of stock, so you can't place an order.
Selected products are available for Preorder, with a guaranteed delivery within 30 days or your money back.
How fast do you ship?
We process and ship all orders within two business days. Shipping time is determined by the speed of the shipping partner.
Is there a guarantee on your products?
Yes. On top of the manufacturer's warranty, we also offer a Replacement Guarantee on all online orders. In the event that the product is defective or damaged during shipping, you will receive a replacement.
Can I cancel my order?
We'll refund you 90% if you cancel before dispatch. Cancellations after dispatch are complicated. Take a look at the our Policy here
What's your return policy?
We have strict return/refund policies as a company that deals with fragile products. Casual returns are not permitted. Items that are not damaged in transit or defective cannot be returned.So please take a moment to review our Refund Policy.
Could I order something that's out of stock or not listed?
If you are interested in ordering an out-of-stock item, click the "notify me" button. You will be notified when the item is back in stock.
To source a specific product for you, our team needs more information. Specific orders will be subject to case-by-case terms and conditions.
