Canon Ef Mount Macro Lens
Related Faq
Q
Will this 43mm nd filter fit onto my canon ef-m 22mm f2 lens without any other accessories?
A
Yes, no other accessories needed. The filter can be directly screwed on your camera lens. 
Q
Is it compatible with Sigma for ef mount leneses (60-600mm) on Fujifilm X-H2 and X-H2s?
A
... 
Q
I am new to fuji, have only used canon rebels. will this work for my fuji x-a3 and canon ef 75-300 1:4-5.6 usm iii? Thanks so much for the help!
A
EOS-FX,You can use Canon EOS EF / EFS Lens on a Fujifilm FX Mount Camera body,, Your canon ef 75-300 1:4-5.6 is canon EF mount lens and fuji x-a3 is X mount camera body. so the adapter ring fit for your camera and lens. but pls notice, your lens is telephoto lens,we do suggest you could use one telephoto lens bracket that could be attached to the tripod to increase its stability. because the canon lens could not adjust aperture,so suing our adapter ring could not adjust aperture 
Q
Will this fit the 100mm macro canon lens L glass
A
this is 67mm nd filter . as long as your lens size is 67mm, the filter can work on 100mm macro canon lens L glass. Please verify your camera's lens thread size before ordering. Your camera's lens thread size will be marked somewhere on the lens barrel or printed underneath your lens cap. This number is always preceded by a "ø" (diameter) symbol. 
Q
Will this work perfectly with the canon r5 with a sirui lens m42 mount?
A
I use this to mount an m42 zenit mirror lens to an EIS R, so it should work for your m42 lens. You will have to change the settings to allow release shutter without lens as there are no data pins on m42 lenses. 
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