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Askar FMA180 Triplet ED 180mm Astrograph Lens - FMA180

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Telescope
Askar
FMA180
$545

We will price-match Canadian astronomy dealer pricing

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ASKAR FMA180 objective lens features Triplet air-spaced APO design, including two pieces of ED (extra-low dispersion) glass, providing excellent correction of chromatic aberration.  This lays the foundation for high quality astrophotography and observation.

The reducer for Askar FMA180 also adopts APO triplet design, offering a sharp image when cooperating with the objective lens. The reducer boasts an exquisite ability to enhance the quality of sky imaging, enabling our customers to get rid of all the worries about aberrations within the field.

The Askar FMA180 originally has an aperture of 40mm, a focal length of 220mm and a focal ratio of f/5.5. When it goes with a specially-designed F4.5 reducer, the FMA180 will be a 180mm-focal-length and f/4.5-focal-ratio professional astrograph which maintains the best quality in either ground imaging or astrophotography.


In the field of amateur astronomy, it is rare to find an astrograph with a focal length less than 200mm, which is conventionally a specialty of the ordinary cameras. But the ordinary cameras are not specialized for astrophotography, so the images taken by them may not always satisfying.
 
Askar FMA180, a groundbreaking optical device, can reach great sharpness as well as exactly other long-focal-length astrographs.
 
FMA180 is compact with a main tube length of mere 145mm and a weight of 395g. Besides, it can also function as a quality finder or guider.
 
Therefore, the standard configuration contains a pair of tube rings and a finder bracket for practical installation or attachment. The finder bracket can be divided into two parts. One is the the bracket stalk and the dovetail foot for supporting the whole bracket and the other is a dovetail plate which can be disassembled and independently attached to a tripod or other camera tripod heads with the same thread type. The dovetail plate conforms to standard ARCA-SWISS requirement and is carved with corresponding slots and holes for easy connections. The plate is also designed to realize the connection to an equatorial mount with standard Vixen dovetail base.

FMA180 Usage

Photographic Mode:
 

1) Main tube + focuser + reducer + reducer connection extension tube: 180mm F4.5 sextuplet APO flat field correction astrograph lens (recommended photographic mode, product assembled)
2) Main tube + focuser + extension tube 1 + extension tube 2+reducer connection extension tube : 220mm F5.5 triplet APO lens

 
Observation Mode:
 

1) Main tube + focuser + extension tube 1 + 1.25" adapter: It can be combined with 1.25" star diagonal and eyepiece for standard observation mode or finderscope mode.
2) Main tube + focuser + extension tube 1 + extension tube 2: It can be combined with 1.25" eyepiece for visual observation mode or finderscope mode.

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

Items that have been opened, damaged or are otherwise unsaleable will be subject to a minimum 10% restocking fee, to be assessed by Telescopes Canada upon receipt of the returned goods

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

Typographical Errors and Order Cancellations

Telescopes Canada reserves the right to cancel an order due to an error in pricing by Telescopes Canada or one of our suppliers, equipment being no longer obtainable, or other events which are out of our control.

Client-Initiated Cancellations

Client-initiated order cancellations are accepted prior to delivery of the equipment to the customer, thereafter it is a return.

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