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Sigma 50mm f1.4 Art on SD1 Merrill

Started Mar 2, 2021 | Discussions thread
Scottelly
OP Scottelly Forum Pro • Posts: 18,028
Re: Sigma 50mm f1.4 Art on SD1 Merrill

Jarno-Germany wrote:

Hello Scott,

my SD1 struggles with iconsistent AF Performance with my 50ART, even with internal correction.

I must correct every Lens, by approx -7 on my Body.

I didn't have taken the time to finetune it on the SD1, as it work great on SDq .

As, DOF is smaller wide open, could this have been a factor during your test?

I mean, MF comparison isn't an easy task with SD1

Good question! I guess it could be a factor Jarno. I used auto-focus, and the photo at f2.8 seems so sharp and in focus that I figured the lens was focused right, but at f1.4 the depth of field is so shallow that any blur might be caused by slight misfocus, I guess.

Thanks Jarno. I will have to experiment with the micro-focus adjustment feature, with the lens set at f1.4.

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Scott Barton Kennelly
https://www.bigprintphotos.com/

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