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Accurate manufactured T2 extension ring with an overall length of 40mm excluding T2 external thread. This extension tube is a real problem solver for fine tuning!
FEATURES:
| General | |
|---|---|
| Optical length (mm): | 40 |
| Usage: | for eyepiece projection with sliding focuser |
| Weight (kg): | 0.059 |
| Inner diameter (mm): | 38 |
| Outer diameter (mm): | 46 |
