Universal Focal Reducers

TS 1.0x Photoline full-frame corrector for APO and ED refractor telescopes from 80 mm to 155 mm aperture and larger with integrated fine tuning - no more adapter battle!

With the Apex ED reducer, an f/5.5 apo refractor becomes an incredibly fast f/3.6 astrograph!

Sharpstar 2.5" Field Flattener for most APO Refractors

The Most Reliable & High Quality Image Flattener

Sharpstar 2" Field Flattener for most APO Refractors

This superb fully multi-coated double-element focal reducer takes advantage of the latest computer aided design techniques to achieve the highest standards of performance to dramatically increase the field of view (FOV) or imaging scale of your telescope

This Antares focal reducer lens more than doubles the field of view of any small chip CCD cameras with a 1.25" nosepiece (such as the Celestron NexImage, Meade DSI, and Orion StarShoot Solar System and Deep Space Imaging Cameras) for wider-field deep sky