M42 screw mount lens to Canon EOS R RF mount adapter macro focusing helicoid - R R3 R5 R6
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The newest design product, lens adapter combine helicoid macro tube. Support both MACRO SHOOTING with helicoid adjust and INFINITY FOCUSING. (Optional M39-M42 adapter ring for M39 lens)
The length of this adapter is 26mm(min.) to 62mm (max.).
It allow you to take close up/macro image more easier when full extended. It can focus infinity when closed of course. It is fit for the M42 lens on the Canon EOS R RF camera body, saving you the expense of a costly and irreversible conversion. The adapter has no lens element so it does not effect optical performance.
Switching on "Release shutter without lens" in custom menu C.Fn5, then switching shooting mode to M (manual) is recommended.
Not suitable for Canon EOS film / digital SLR cameras and EOS M series EF-M mount mirrorless cameras.