Flatterers, Reducers & Extenders

This economical Astro-Tech 2" 0.8x reducer/field flattener is designed for astrophotography with f/6 focal ratio refractors, but will also work wel...

Looking to make your Astro-Tech (or variant) scope faster and flatter for photography? Then the .8x reducer/flattener is exactly what your are loo...

Looking to make your Astro-Tech (or variant) scope faster and flatter for photography? Then the .8x reducer/flattener is exactly what your are loo...

New for August 2021, thread on adatper tops to choose between 42mm T-threads and 48mm T-threads. Named a Sky & Telescope Hot Product of the Yea...

This economical 0.8x focal reducer and field flattener is designed specifically for astrophotography with the Astro-Tech AT115EDT 115mm f/7 triplet...

This thread on field flattener for the AT60ED is a must for full frame photography.The Astro-Tech 60ED 1x flattener easily threads on to the focuse...

This economical 0.8x focal reducer and field flattener is designed specifically for astrophotography with the Astro-Tech AT80EDT 80mm f/6 triplet a...

This economical 0.8x focal reducer and field flattener is designed specifically for astrophotography with the Astro-Tech AT130EDT 130mm f/7 triplet...

This Astro-Tech #AT102EDLRF 0.8X focal reducer/field flattener is designed specifically for prime focus astrophotography with the Astro-Tech AT102E...

This combination focal reducer and field flattener consists of a four-element multicoated 41mm lens in a metal cell. It threads onto the rear cell ...

This Celestron EdgeHD 0.7x focal reducer turns your 8" f/10 EdgeHD telescope into a full f-stop faster f/7 scope, increasing your photographic fiel...

This Antares 1.25" 0.5x focal reducer lens (tele-compressor) is used under the Orion brand name to thread into the nosepiece of Orion StarShoot Sol...

This 0.8x focal reducer and field flattener is designed specifically for astrophotography with the Astro-Tech AT125EDL f/7.8 apo refractor. This As...

The Astro-Tech AT152FF 0.72x focal reducer/field flattener is designed specifically for prime focus astrophotography with the AT152EDT triplet refr...

The EdgeHD .7x Focal Reducer Lens makes your EdgeHD 9.25" one full F-Stop faster than f/10, reducing your exposure time by half to capture the same...

This Celestron EdgeHD 0.7x focal reducer turns your 11" f/10 EdgeHD telescope into a full f-stop faster f/7 scope, increasing your photographic fie...

This Astro-Tech AT115EDTFF 1X field flattener is designed specifically for prime focus astrophotography with the Astro-Tech AT115EDT ED triplet apo...

This focal reducer and field flattener consists of a four-element multicoated 40mm lens in a metal cell. It threads onto the rear cell of 5" to 16"...

This Astro-Tech AT130EDTFF 1X field flattener is designed specifically for prime focus astrophotography with the Astro-Tech AT130EDT ED triplet apo...

This Astro-Tech 2" 0.8x reducer/field flattener is designed for astrophotography while using your Astro-Tech AT80ED refactor This Astro-Tech #AT80E...

This 0.8x focal reducer and field flattener is designed specifically for astrophotography with the Astro-Tech AT90CFT 90mm f/6 triplet apo refracto...

This Celestron EdgeHD 0.7x focal reducer makes your 14" f/11 EdgeHD telescope into a full f-stop faster f/7.7, increasing your photographic field o...

This 0.8X reducer/field flattener assembly converts the 600mm focal length f/7 TeleVue TV-85 refractor into a 480mm f/5.6 telephoto lens for faster...

This auxiliary multicoated lens system sharpens 35mm and large format CCD images taken through the TeleVue NP-101is and NP-127is imaging system ref...