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Developer news items we found relating to askar

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Astrophotography filters: How narrow is too narrow

Saturday, June 29, 2024 by Jim Thompson

For many years now I have been promoting the idea that for emission nebulae, whether you have light pollution (LP) or not, the narrower your filter’s pass bands are, the better. Time and again my test results have demonstrated this relationship to be true; that object contrast and signal-to-noise-ratio (SNR) increase as the pass band width decreases. Recently howe...

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Starfront observatory now accepting and installing telescopes

Tuesday, June 25, 2024 by Richard Harris

Bray Falls provided an in-depth tour of the telescopes already set up at the remote observatory in Central Texas. This project aims to make astrophotography accessible and affordable by allowing people to use their telescopes remotely from dark skies, wherever they live. The observatory features buildings where the roofs open every night, enabling users to capture image...

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Askar 52mm F4 guide scope released

Friday, June 21, 2024 by Freeman Lightner

A guide scope is an essential tool for astrophotography (unless you are doing OAG), it helps to keep the main telescope accurately aligned during long exposures by correcting tracking errors. The Askar 52mm Guide Scope is perfect for this purpose. With its lightweight, compact design, it offers a 52mm aperture, 208mm focal length, and a 25mm travel length, all at just 6...

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APM LZOS telescope APO refractor available for pre-order

Thursday, May 23, 2024 by Freeman Lightner

The APM - LZOS 3-lenser SuperED, presented in a new special package, features a 130 mm aperture combined with a 1200 mm focal length. This model is distinguished by its 3.7" APM focuser, which provides 360° rotation, ensuring a versatile and user-friendly experience. The 130 mm APM - LZOS 3-lenser SuperED in the new inexpensive special package with 3.7"...

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Sharpstar 15028HNT Hyperbolic Newtonian Reflector

Thursday, April 25, 2024 by Richard Harris

The SharpStar 15028HNT, also known as the 150 mm f/2.8 Hyperbolic Newtonian Telescope, boasts an impressive f/2.8 focal ratio that promises super wide field images. Its hyperbolic primary mirror, crafted from a glass similar to Pyrex, significantly minimizes spherical aberration, a common challenge in many telescopes. Additionally, the telescope includes a built-in thre...

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Askar 71F Flat Field launches from SharpStar Optics

Thursday, April 25, 2024 by Freeman Lightner

The Askar 71F Flat-Field is an optical tube assembly (OTA) characterized by a 71mm aperture, 490mm focal length, and an inherent focal ratio of F6.9. This model features a quadruplet air-spaced APO lens arrangement, incorporating a single ED glass element to significantly minimize chromatic aberration. It is optimized for 44mm full-frame imaging, delivering excellent...

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Sharpstar Optics launches the 185 APO f7 Triplet Refractor

Wednesday, December 13, 2023 by Richard Harris

Introducing the Askar 185 APO f/7 Triplet Refractor – a portable and highly adaptable telescope that combines a large aperture and extended focal ratio to deliver exceptional light-gathering power, resolution, brightness, and contrast. This innovative telescope joins the recently unveiled Askar 140, expanding Askar's line of modular telescopes featuring triple...

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Sharpstar launches Askar 140 APO with portability in mind

Wednesday, December 13, 2023 by Richard Harris

The Askar 140 APO f/7 Triplet Refractor is a versatile imaging and visual telescope with the option of a 1.0x flattener and 0.8x focal reducer. It is the latest addition to Askar’s line of modular telescopes joining the recently introduced Askar 103APO and 140APO triplet refractors. The Askar APO140 utilizes ED glass and yields high-contrast images with pinpoin...

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