The TS GPU Aplanatic Newtonian Coma Corrector for Astrophotography

The coma corrector has been designed by Pal Gyulai - GPU Optics - for Newtonian telescopes with a focal ratio of f/4. The result is a high-quality 4-element corrector which offers round stars over the entire image field even with larger camera sensors.

 

In opposite to 2-element correctors, the stars are not enlarged, there are no halos. Furthermore, the whole construction is designed to be free from reflexes. Even bright stars wll be shown without reflexes or ghostings.

 

The Advantages of the GPU Coma Corrector:

Very good coma correction for Newtonian telescopes from f/3.5 to f/6 (the photograph at left was taken with an 8" f/4 Newtonian).

 

♦ No change of the focal length, the focus position also remains the same.

 

♦ Stars are smaller - no halo effects.

 

♦ The corrector can be clamped, but also screwed to the focuser by an optional adapter.

 

♦ The TS GPU corrector offers correction up to full-frame sensors. For perfect illumination, a FLAT is necessesary.

 

 

The optimal working distance from the M48 thread to the camera sensor:

The optimal distance depends from the focal length of the Newtonian telescope. With out wide range of adapter, you can always obtain the ideal distance.

 

♦ Focal length up to 600 mm - working distance 52 mm

♦ Focal length 610-690 mm - working distance 53 mm

♦ Focal length 700-740 mm - working distance 54 mm

♦ Focal length 750 mm and more - working distance 55 mm

 

Innovation from TS Optics - screw the GPU corrector to the focuser.

With optional adapters you can screw the corrector to the drawer. For this purpose the corrector has an extended M48x0.75 thread on the camera side. Simply turn down the lock ring and you have 3mm more M48 thread for screw adaptations available.

 

By the threaded connection, you gain stability and also accuracy. The image is improved and heavy cameras can be used, too.