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SKU: P-FLAT-RC

Dr. Flat Master (0.8x Reducer)

Sale price$845.00 USD

The William Optics Dr. Flat Master is an apochromatic triplet reducer/flattener designed for 12" - 16" WO and GSO Ritchey-Chrétien telescopes. It reduces the focal length by 0.8x and flattens the field, making it ideal for full-frame sensors with a 52mm image circle. Featuring an M48 x 0.75 camera connection and a backfocus distance of 86.15mm, this accessory enhances your astrophotography setup by expanding your field of view and ensuring edge-to-edge sharpnes.



Flattener compatibility table

FLAT 61A

1.0x

FLAT 61R

0.8x

FLAT 73A

1.0x

FLAT 73R

0.8x

FLAT 6AIII

0.8x

FLAT 68III

1.0x

FLAT 7A

0.8x

FLAT 8

0.72x

Ultra 132

0.79x

Ultra 156

0.79x

Dr. Flat

0.8x

GS-61                  
Z-61                  
Z-73                  
Z-81                    
Z-126                  
GT-71                    
GT-81                    
GT-81 WIFD         Adapter          
GT-102                
GT-153                
FLT-91         Adapter Adapter          
FLT-120           Adapter        
FLT-132              
FLT-156              
RC Series                    
Pleiades Series No Flattener Required
Cat Series No Flattener Required