Fine-tune your back-focus with Artesky Fine Tuning rings.
These rings allows you to adjust the working distances to your accessory with sub-millimetre accuracy. Achieve a greater precision than is possible with classic extensions tubes.
The Artesky Fine Tuning ring fits over the M48 thread of your extension, just like a ring!
Our Fine Tuning rings are made entirely of stainless steel.
Perfect backfocus adjustment between camera and accessory as off-axis guide, corrector or reducer
Prevents threads from blocking (very useful on low thickness extensions)
M48 male threads that are too long can be shortened.
Kit consists of 3 rings.
- Thickness: 0.5 mm (1 piece)
- Thickness: 0.8 mm (1 piece)
- Thickness: 1.0 mm (1 piece)
- Internal diameter: 48.05mm
- External diameter: 60mm