This M48F-M48M-17.5-mm extender adds precise spacing between female and male M48-x-0.75 threads. Used for fine back-focus adjustment in filter wheels or Drawers requiring consistent M48 alignment.
🔑 Key Features
- M48x0.75 female → M48x0.75 male
- Extension length: 17.5-mm
- Precision-machined aluminum to maintain alignment
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