NEW Askar FMA180 40mm f/5.5 Triplet Apo Lens / Guidescope FMA180 For Sale
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NEW Askar FMA180 40mm f/5.5 Triplet Apo Lens / Guidescope FMA180:
$388.90
Description Quick Overview
- ASKAR FMA180 40mm aperture apochromatic telescope/camera lens features multiple optical configurations
- Uses three-element objective lens with two ED elements for superb color correction and image quality
- Configures as a finder/telescope/guide scope with a focal length of 220mm and focal ratio of f/5.5
- Includes three-element focal reducer and spacers to configure as a six-element f/4.5 apo telescope with focal length of 180mm for wide-field astronomical imaging
- Includes tube mounting rings, Vixen-style dovetail, and Swiss-Arca mounting plate for a wide range of mounting configurations
- Identical to TPO 180
Product Details
The ASKAR FMA180 is a premium multi-functional optical instrument that features a 40mm ED fully multicoated triplet objective to deliver superb image quality. It works at f/5.5 as a finder/small telescope/guide scope. It can also be easily configured as a six-element f/4.5 apochromatic refractor/camera lens, making it an ideal instrument for serious wide-field astronomical or terrestrial imaging.
The heart of the FMA180 is an air-spaced 40mm apochromatic f/5.5 triplet with two ED elements to minimize chromatic aberration. With a focal length of 220mm, the objective lens is optimized and tested for demanding astronomical applications. The objective is carefully matched to the included three-element focal reducer that transforms the overall focal ratio to f/4.5 and a focal length of 180mm.
For the price, this fast apochromatic lens offers excellent value and can approach the performance of telescopes that cost three or four times as much. This is especially true when matched with astronomy cameras with smaller 1" and 4/3" sensors. Cameras with larger APS-C and full-frame sensors may reveal slight aberrations at the edge of the field, especially when using the focal reducer.
With the included focuser ring and extension tubes, the FMA180 is easily configured for visual or photographic use. When configured for imaging with or without the focal reducer, the telescope side of the extension tube terminates in a standard M42x0.75 male T-thread for mating to a camera T-ring adapter (not included). The back focus is a standard 55mm, or it can be changed to 99mm by removing an extension tube to allow more freedom to attach other camera accessories.
For straight-through observing with an eyepiece or for use as a guide scope, there’s a standard 1.25” adapter that threads onto to extension tube. The scope can also be configured to work with a 1.25” star diagonal (not included) for visual observing. The FMA180 can be used visually with the focal reducer but may have some color fringing that isn't present at f/5.5.
When configured as a finder or guide scope, the optical tube mounts in dual rings attached to a standard narrow Vixen-style dovetail. The dovetail riser can be removed to expose a Swiss-Arca mounting plate to attach the scope to a suitable tripod head for visual or photographic use. The plate can also attach to a narrow Vixen equatorial adapter (not included). The rings can be completely removed from the scope when it’s used with a DSLR for handheld shooting or when the camera itself is mounted to a tripod.
The overall tube length is 145mm in photographic mode and 160mm in visual mode without a star diagonal. The FMA180 weighs just 395g (0.87 lbs).
This Askar FMA180 telescope is identical to the TPO 180, also known as the TPO Ultrawide 180, except comes in the stock Askar red color.
OTA Specifications:
- Aperture: 40mm
- Focal Length: 220mm
- Focus Ratio: f/5.5
- Objective Type:
- Triplet Dual ED Air-spaced APO (Objective lens)
- Sextuplet Refractor for full-frame astrophotography (with reducer)
- Overall length:
- 145mm (photographic mode with focal reducer)
- 160mm (observation mode without star diagonal)
- Helical focuser travel: 30mm
- Weight: 395g
- Back-end Adapter:
- M42x0.75 (photographic mode)
- 1.25" Adapter (visual observation mode)
- Thread Extensions:
- Reducer Connection Adapter - 28mm
- Extension 1 - 55mm
- Extension 2 - 75mm
- Back focus: 83mm from end of Field Reducer
- 55mm with Reducer Connection Adapter
- Accessories:
- FMA180 Body
- Pair of tube rings
- Finder scope bracket
- Two extension tubes
- 1.25" Adapter
- Allen Wrench
- Manual
Shipping policy
1.No any handle fees.
2.Items will be shipped in 1-3businessdays on payment received.
3.We ship to eBay's address only. Please make sure your address in eBay is matched with your shipping address before payment.
4.We provide Economy Int'l Shipping and Express shipping services.
5.We ship to USA,Europe bySpeedPAKand other countries by International parcel with registed T/N.
6.speedPAK standard is free,and Expedited shipping is an extra $25-65
Country Estimated Delivery Time(speedPAK standard) (Expedited shipping)
United States About 7-14 business time About 5-8 business time
Canada/Australia About 8-15 business time About 5-8 business time
Asia About 15-20 business time About 5-8 business time
Most of the European About 12-20 business time About 5-10 business time
Most of the European Union About 10-15 business time About 5-8 business time
South America About 25-37 business time About 6-11 business time
About us
1.We are founded in 2010, is a professional purchasing B2B & B2C tool.
2.We have more than 200,000 lines in stock and they can be shipped in 1 to 3 business days.
3.If you have any question or problem, please contact us. We will reply you in 24 hours and give your a satified answer.
Please note:
1.If the customer does not specify whether to send products in European or American standards, please send the products shown in the pictures uniformly.
2.Due to system limitations, it is not possible to set the shipping fee for each city and zip code, if you choose expedited shipping when placing
3.your order and your address is in the remote address list of DHL/FedEx/UPS, we may contact you to charge you for the address remoteness fee.
4.We will arrange the shipment according to the address the buyer provided, So please confirm and check the address details you filled when purchase.
5.Average delivery time for reference only, actual time varies for different countries and related to uncontrollable factors such as weather, natural disasters and pandemic.
6.Service Transit Time is provided by the carrier, weekends and holidays are excludes, so the shipping time may be longer than we promised, particularly during the holiday season, so please be patient.
7.Any tracking information updated will inform you in time, you can also get the tracking information from official website.
8.If you need the best price, please contact me,We will offer you the most affordable price, and we will be the lowest priced seller among Chinese sellers.
9.We support retail and wholesale.
