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Matthew Oumer photo
Italy, Rome
1 Level
738 Review
32 Karma

Review on Tohnichi RTD500CN: Precision Adjustable Torque Screwdriver (100~500 cNm) by Matthew Oumer

Revainrating 5 out of 5

It's a great precision tool that I use every day

When adjusting the focus flatness of a photographic lens, even tightening of the screws around the optical assemblies is of paramount importance. Especially for macro lenses where uneven tightening will tilt/distort the focal plane even if you have the correct number of shims under the element. This saves time that is never enough.

Pros
  • Free for educational purposes
Cons
  • Frequency