M68 EXTENSION RING 5mm
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.
Specifications
| 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 |
