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Focusing using manual lenses

Started May 22, 2017 | Questions thread
MightyMike Forum Pro • Posts: 41,691
Re: Focusing using manual lenses

Which lens? Which camera? some manual lenses due to spherical aberrations seem to do better when the global AF adjustment is set to -10 (don't forget to turn this off when using a different lens). also some lenses have a focus shift from wide open to stopped down this potentially could be an issue. Also note that the focus point is rather a lot larger than the dot that appears in the OVF and anything within that point could trigger the AF to think somethings in focus. Finally if you're using the K-1 something has changed, where i could get amazingly accurate pinpoint focus with manual lenses on the K-3 and older bodies the K-1 seems to want to trigger early regardless of which direction you're focusing. on static subject i went from getting most of my shots dead on to 2 out of 3 early triggers (using burst) before one that is appropriately in focus, For action photos i went from 2 of 3 in focus to 1 of 3 in focus after switching to the K-1.

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Mike from Canada
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