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Flattener & Reducer

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FLAT 73AFLAT 73A
FLAT 73A Sale price$229.00 USD
FLAT 73R (0.8x Reducer)FLAT 73R (0.8x Reducer)
FLAT 73R (0.8x Reducer) Sale price$298.00 USD
FLAT 61AFLAT 61A
FLAT 61A Sale price$229.00 USD
FLAT 68IIIFLAT 68III
FLAT 68III Sale price$656.00 USD
FLAT 6AIII (0.8x Reducer) special edition for FLT91FLAT 6AIII (0.8x Reducer) special edition for FLT91
Dr. Flat Master (0.8x Reducer)Dr. Flat Master (0.8x Reducer)
Dr. Flat Master (0.8x Reducer) Sale price$845.00 USD
FLAT 8 (0.72x Reducer)FLAT 8 (0.72x Reducer)
FLAT 8 (0.72x Reducer) Sale price$806.00 USD
FLAT 7A (0.8x Reducer)FLAT 7A (0.8x Reducer)
FLAT 7A (0.8x Reducer) Sale price$691.00 USD
FLAT 6AIII (0.8x Reducer)FLAT 6AIII (0.8x Reducer)
FLAT 6AIII (0.8x Reducer) Sale price$229.00 USD

How to pick your flattener?

Match your telescope model with the corresponding flattener in the table below.

FLAT 61A

1.0x Flattener

FLAT 61R

0.8x Reducer

FLAT 73A

1.0x Flattener

FLAT 73R

0.8x Reducer

FLAT 6AIII

0.8x Flattener

FLAT 68III

1.0x Reducer

FLAT 7A

0.8x Reducer

FLAT 8

0.72x Reducer

Ultra Flat

0.79x Reducer

Dr. Flat

0.8x Reducer

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 10                  
RC 12                  
RC 14                  
RC 16                  
Pleiades Series No Flattener Required
Cat Series No Flattener Required

Adapter Specification

Female thread Length Male thread
68III / 7A Original M80 x 0.75 30mm M48 x 0.75
AD-M80TOM54 M80 x 0.75 30mm M54 x 0.75
AD-M80TOM68 M80 x 0.75 30mm M68 x 0.75
AD-M80-45-M48 M80 x 0.75 45mm M48 x 0.75
AD-M80-54-M48 M80 x 0.75 54mm M48 x 0.75
AD-M80-45-M54 M80 x 0.75 54mm M54 x 0.75