Unbranded Camera Accessories M42 Helicoid sku-9285713254

Unbranded Black Camera Accessories, SKU sku-9285713254. This solid, all-metal M42-to-M42 helicoid adapter adds 25-55mm of adjustable extension for close-up and macro photography with M42 lenses. It is especially suited to lenses without a focusing ring and can also be used as a macro extension tube. It clamps to the lens and detaches when you return to normal shooting.

The smooth mechanical focuser has no electronic contacts or circuitry, so set the aperture and focus manually on the lens.