Description
Quick Overview
ASKAR FMA230 50mm 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 275mm and focal ratio of f/5.5
Includes four-element 0.84x focal reducer to configure as a seven-element f/4.6 apo telescope with focal length of 230mm for wide-field astronomical imaging
Includes tube mounting rings, Vixen-style dovetail, and carrying handle with guidescope slot for a wide range of mounting configurations
Product Details
The ASKAR FMA230 is a premium multi-functional optical instrument that features a 50mm 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 seven-element f/4.6 apochromatic refractor/camera lens, making it an ideal instrument for serious wide-field astronomical or terrestrial imaging.
The heart of the FMA230 is an air-spaced 50mm apochromatic f/5.5 triplet with two ED elements to minimize chromatic aberration. The optics are fully multi-coated and the tube is internally blackened to ensure high contrast and minimal reflections.
With a focal length of 275 mm, the objective lens is optimized and tested for demanding astronomical applications. The objective is carefully matched to the included four-element 0.84x focal reducer that transforms the overall focal ratio to f/4.6 and a focal length of 230 mm.
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 FMA230 is easily configured for visual or photographic use. For visual observing, it includes a 2” adapter that accepts eyepieces or star diagonals (sold separately). For observing with a 1.25” diagonal, the scope includes a small extension tube to ensure focus (NOTE: A 2”-to-1.25” adapter is not included with the FMA230).
When configured for imaging with the focal reducer, the telescope side of the extension tube terminates in a standard M48x0.75 male T-thread for mating to a wide camera T-ring adapter (not included). The back focus is a standard 55mm. When the reducer is removed, the extension tube terminates with a female M62x0.75 thread. Imaging with the scope without the reducer will require you to use it in the "visual mode" with the included 2" adapter and the addtion of other spacers/adapters to reach focus (not included).
The Askar FMA230 also includes a set of red anodized aluminum tube rings and a Vixen dovetail mounting plate.
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Fruugo ID:
211270556-450351253
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EAN:
885767737907
Product Safety Information
Please see the product safety information specific to this product outlined below
The following information is provided by the independent third-party retailer selling this product.
Product Safety Labels
Safety Warnings:
Please note that the product is safe under normal use conditions. However, improper use may lead to hazards such as damage, injury or other safety risks. Please read and follow the instructions carefully.This product complies with EU safety standards. However, for your safety, if any abnormality (such as strange smell, overheating, loose parts, etc.) is found during use, please stop using it immediately.In accordance with the EU General Product Safety Regulation, we remind you that this product is only suitable for [specific applicable people / scenarios]. Use in non - specified people / scenarios may bring potential safety hazards.
Delivery & Returns
Dispatched within 3 days
Shipping from China.
We do our best to ensure that the products that you order are delivered to you in full and according to your specifications. However, should you receive an incomplete order, or items different from the ones you ordered, or there is some other reason why you are not satisfied with the order, you may return the order, or any products included in the order, and receive a full refund for the items. View full return policy
Product Compliance Details
Please see the compliance information specific to this product outlined below.
The following information is provided by the independent third-party retailer selling this product.
Manufacturer
The following information outlines the contact details for the manufacturer of the relevant product sold on Fruugo.
- Jinjiang Nikai Trading
- Jinjiang Nikai Trading Co., Ltd.
- quanzhoushi jin jiang shi chidian zhen bai jie jin jie 1#1211
- Quanzhou
- CN
- 362200
- mickcara@mickcara.com
- 8613625959351
Responsible Person in the EU
The following information outlines the contact information for the responsible person in the EU. The responsible person is the designated economic operator based in the EU who is responsible for the compliance obligations relating to the relevant product sold into the European Union.
- Y & H S.R.L.
- Y & H S.R.L.
- Via Gravina 21 MT matera,Trani,Puglia
- Trani
- IT
- 75100
- itlyhsrl@gmail.com
- 0039 3917722149