Frequently Asked Questions
The CM33's optics are designed for APS-C, but we think it’s a fantastic ultra-compact lens for the a7! Both Sony’s fully frame cameras (the various a7 models) and APS-C cameras (a6000 etc.) use the same mount so the E-mount version of the CM33 will work on them all. The only difference is that the CM33’s optics are designed for an APS-C sized sensor, so your a7 will need to be set to APS-C mode to correctly frame the images. This means you won’t get maximum resolution, but you will still get unparalleled image quality at that resolution with an extremely compact solution for times when you want to carry something less bulky or intimidating to subjects. We love using the CM33 prototype on our a7II here.Last updated:
Unfortunately no. Sony, Fujifilm, and Canon's mirrorless systems are all very similar optically and mechanically, allowing us to highly optimize our optics for those systems without compromising either performance or size. Micro-4/3 however is unfortunately quite different, so it was not possible for us to design an MFT version of the CM33 without making significant compromises to both versions. We may however consider lenses that are specifically optimized for the MFT system in the future.Last updated:
The short answer is that we believe that as long as little bit of care is taken — very similar to the care you take when changing lenses on your camera -- we don't expect dust to be a problem.
Mods insert into a mechanically isolated area at the CM33’s optical stop, between its individually sealed front and rear lens groups. So a little puff from an air bulb should be all you ever need to clear out this area. And one advantage of the optical stop location is that even the worst dust on a Mod optic should only slightly dim the image, not cause discrete spots or shadows in your image.Last updated:
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