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Anyone else have AF problems with the 24mm STM lens?

Started Mar 23, 2015 | Discussions thread
seri_art
OP seri_art Veteran Member • Posts: 3,063
Re: Anyone else have AF problems with the 24mm STM lens?

- One of my main uses for that lens would be in lower-light social situations. So if it won't reliably focus in that setting, it won't work for me.

- The shutter speed was fine. I used flash to make sure the shutter speed was fast enough. It was just focusing in front of or behind the supposed focal point.

- Of course I could get another copy and use it in Live View where it focused perfectly.

ZX11 wrote:

You should try in better lighting. The focusing accuracy at very shallow DOF's (to test focus accuracy) should improve. Also, I noticed the non stabilized lenses really needed fast shutter speeds to get things sharp like a stabilized lens can. Handheld sharpness with non-stabilized lenses is a matter of opinion on what is acceptable motion blur.

My 50mm f1.4 would have problems indoors low light. Just where I thought a f1.4 lens would excel. It could get nice photos but it doesn't always work that way. Contrast just falls off too fast. I think my lenses chromatic distortion issues makes the problem with missing fine focus worse. Can a camera achieve fine focus, by contrast methods, if the lens is throwing color fringing into the mix? I think that is another reason the UD elements in the "L" lenses are worth the money (if you have it). How is the chromatic distortion on the 24mm?

 seri_art's gear list:seri_art's gear list
Sony RX100 III Canon EOS Rebel T7i Canon EF 40mm f/2.8 STM Canon EF-S 18-55mm f/3.5-5.6 IS STM Canon EF-S 55-250mm f/4-5.6 IS STM +3 more
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