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An attempt to solve the price/focal length dilemma: Metabones T Smart adapter + Canon 70-300mm IS II

Started Jun 5, 2018 | Discussions thread
jwilliams Veteran Member • Posts: 6,400
Maybe ...

a Canon 55-250 IS STM might work better.  I just got a Viltrox adapter and already had the lens.  Haven't used it a lot, but initial test seem to indicate pretty good IQ.  AF while not blazing seems decently fast and sure.  Since the lens is optimized for APSC it might actually resolve more per mm than the FF lens.

I'm a little surprised AF is so slow.  I've seen a video using that lens on a Canon camera in live view following a go cart around a track.  Of course the Canon has the DPAF so apparently that makes a huge difference.  Still I think it would work pretty good on a mirrorless as the Nano USM is really meant for cameras that use live view and video.  Maybe the STM lenses are faster for some reason.  Both types are intended for LV and video use.

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Jonathan

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