Gso coma corrector manual

A very strong and precise 2" focuser for refractors, the metal focuser drawtube is guided by three strips of Teflon and with mm focus travel. Shifting and friction can be adjusted easily. An adaptor from 2" to " is already included, you will still . HR Variable Coma Corrector (2-inch) - HRCC by Explore Scientific. $ USD. Buy in monthly payments with Affirm on orders over $ Learn more. SKU HRCC BARCODE Model: HRCC HRCC HRCC  · GSO 2" Coma Corrector for fast Newtonian Telescopes. 3-piece modular design (i) Optics in 2" nosepiece with 48mm male filter thread (ii) 2' eyepiece barrel that attaches to optical nosepiece, and (iii) M48 - T2 adapter ring. Design optimized for use at f/ but will work well from f/3 - f/6. Reduce coma and field curvature.

The reducer features 2-element fully multi-coated optical design and blacked lens edges in a black anodize aluminum filter cell. It also has additional " filter threads, so you can screw/stack additional filters on to this reducer, it also have an option 25mm extension tube. We have 2" focal reducer also, it come with outside thread M48x0. So far as I can tell, this tolerance also looks good for a telescope fitted with a coma corrector. To set up the GSO coma corrector properly, the total back focus (distance from the last lens to the focal plane) has to be about 75mm. The designer says that it is not critical and from 65mm to 85mm will produce a good spot size. This coma corrector can be placed completely inside a 2" focuser and offers a high grade of correction and a low degree of vignetting. The generous back focus of 70mm allows the use of off-axis-guiders. M48 thread connection for good field illumination. Especially fast Newtonian systems suffer vignetting when a T2 corrector is used.

This corrector eliminates the coma that occurs in Newtonian telescopes, cameras with a " barrel - a detailed description can be found in the manual. Skywatcher Coma Corrector 2" for Newtonian Telescopes Optimised for all Sky-Watcher fast-ratio f/5 Newtonian Reflectors / Dobsonians, with 2” focuser. OPTICAL TELESCOPE TUBE by- GSO 6" f/5 Newtonian and optimized focuser - ready Buy a Coma Corrector separately- Highly Recommended with this telescope.