Fotasy M42 to M42 42mm Screw Mount Adjustable Macro Focusing Helicoid Ring 17mm - 31mm
Fotasy M42 to M42 42mm Screw Mount Adjustable Macro Focusing Helicoid Ring 17mm - 31mm
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Fotasy

Fotasy M42 to M42 42mm Screw Mount Adjustable Macro Focusing Helicoid Ring 17mm - 31mm

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Fotasy M42 to M42 42mm Screw Mount Adjustable Macro Focusing Helicoid Ring 17mm - 31mm
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Aug 6, 2025
anonymous
Sold and shipped byPhotography Accessories INC
1 out of 5 stars review

Verified Purchase

Poorly Machined Helicoid Adapter –upside down apr

I purchased two helicoid adapters from this seller, and both have the same issue: when mounted on a lens, the aperture ring is forced downward and can't be seen freely. It feels like the helicoid was poorly machined or misaligned, causing mechanical interference with the lens. I've tested them with multiple lenses, and the problem persists across all of them. Very disappointing, especially since this isn't a cheap part. Not recommended unless this design flaw is corrected.

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