Fine-tune your back-focus with Artesky Fine Tuning Rings

This ring kit allows you to adjust the working distances for your accessory or camera, the precision is definitely more accurate than the classic extensions.

The Artesky Fine Tuning Ring fits over the M68 thread of your extension, just like a ring!

Our Fine Tuning rings are made entirely of steel

Usage

Perfect backfocus adjustment between camera and accessory such as off-axis guider, corrector or reducer

Prevents threads from becoming jammed (very useful on thin extensions)

Too long M68 threads can be shortened

Technical features

Material: Steel

Thicknesses included (mm):

0.1 -1 piece

0.15 - 1 piece

0.2 - 1 piece

0.3 - 1 piece

0.5 - 2 pieces

1.0 -1 piece

1.5 - 1 piece

2.0 - 1 piece