Questions tagged “sigma 50mm”

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121

Why do I see circular artifacts with a Sigma 50mm f/1.4 EX DG HSM on a Canon EOS R?

lens-correctionsadaptercanon-eos-rsigma-50mmimage-artifacts

Philip O'Brien

1y ago

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106

Why does autofocus seem to change when I change the aperture?

autofocusdepth-of-fieldaperturenikon-d90sigma-50mm

Photography Stack Exchange contributor

11y ago

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122

Nikon D3100 won't fire the shutter when flash is enabled

nikond3100troubleshootingsigma-50mmflash

Photography Stack Exchange contributor

13y ago