Astronomy Specialist

M68 EXTENSION RING 5mm

$89.00

Quantity
- +

 

This 5mm extension ring is often used for professional field flatteners such as the SharpStar 2.5" field flattener.

The extension ring has an M68 x 1 male thread on one side and an M68 x 1 female thread on the other side. The total thickness is 9mm which includes the 4mm male thread.

 

 

Connection (side a)
M68 x 1 male
Connection (side b) M68 x 1 female
Optical thickness 5 mm (not including 4 mm male thread)
Clear aperture 63 mm
SKU TSVM685
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