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Askar FRA 500 (90mm f/5.6 Quintuplet Petzval Astrograph)

Askar FRA 500 (90mm f/5.6 Quintuplet Petzval Astrograph)

Regular price Rs. 199,999.00
Regular price Sale price Rs. 199,999.00
Sale Sold out
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The 500mm-focal-length refractor has an aperture size of 90mm (f/5.6), so Askar FRA500 can better fit into the scenarios of deep-sky imaging than Askar FRA400. Besides, its more lightweight and compact than Askar FRA600, which makes it a great choice for out-door observation or astrophotography.



Aperture size


Focal length


Focal ratio


Objective lens

Quintuplet air-spaced APO (including two ED glass)

Image circle


Back focus

158mm(from base of M48×0.75 thread on the conical extender to focal plane)

85mm(from base of M86×1 thread on the rotator to focal plane)

Total length

452mm(410mm when the dew shield is contracted)

Net weight


Gross weight


Rear-end thread type


Conical adapter


Package items

An FRA500 OTA, a pair of tube rings, a handle, an Askar Losmandy dovetail plate, a conical extender, a manual

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Customer Reviews

Based on 1 review
Subhsri Pandit
Reliable source for astro products in India!

I took the time to write this review as I'm truly impressed with Edisla and would like to encourage them to continue offering astro niche products in India. Most importantly, they maintain everything in stock, unlike other sellers that often deal with back orders. I had a bitter experience with a different seller who took my money and never fulfilled the order for at least a year now.

However, my recent purchase of the Askar FRA 500, a specialized astro photography product, from this Indian seller has left me completely satisfied. They are the sole source for such gear in India, offering competitive prices, exceptional packaging, and prime delivery to Mumbai in just five days. I am fully satisfied with my purchase and will definitely be a repeat customer. Kudos to this seller for making astro photography more accessible and enjoyable in India!

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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.

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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 100% 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.

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