Questions tagged “sigma”

Ask the Unique Photo creator community — gear, technique, post-processing and more.

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122

What projection does the Sigma 8mm f/3.5 EX DG circular fisheye use?

sigma lens-distortion canopy-photography fisheye projection

Kate

5mo ago

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110

What causes a doubled edge on an out-of-focus subject near the frame edge?

sigma depth-of-field lens-aberrations bokeh nikon-z

noearchimede

1y ago

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193

Sigma 30mm f/1.4 Art vs Contemporary: image quality differences on Fujifilm X-mount

sigma lens-comparison fujifilm-x 30mm aps-c

luator

2y ago

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118

Which Sigma SA-mount lenses cover the Sigma sd Quattro H sensor without corner vignetting?

sigma lenses sensor-coverage sd-quattro-h sa-mount

Photography Stack Exchange contributor

3y ago

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106

Sigma 17-70mm f/2.8-4 shows unstable stabilization, glitches, and AF issues on some Nikon bodies

sigma nikon autofocus image-stabilization lens-problems

Photography Stack Exchange contributor

3y ago

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194

Canon 60D with Sigma 150-500mm stays in autofocus even when lens is set to manual

sigma autofocus canon bird-photography manual-focus

Photography Stack Exchange contributor

4y ago

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169

Will a Sigma 70-210mm f/4-5.6 UC-II EF lens work on a Canon Rebel SL3, and do I need an adapter?

sigma telephoto-zoom lens-compatibility canon-sl3 canon-ef

Photography Stack Exchange contributor

5y ago

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152

Will the Sigma 50mm f/1.4 DG HSM Art for Nikon F-mount work on a Nikon Z50?

sigma z50 lens-compatibility ftz-adapter nikon-z

Photography Stack Exchange contributor

5y ago

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116

Why does my Sigma 105mm macro lose aperture control on a Canon M50 after being mounted for a while?

sigma canon-eos-m50 aperture macro-lenses adapter

Photography Stack Exchange contributor

5y ago

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Does a Sony 24-70mm f/2.8 sit closer to the sensor than a Sigma 24-70mm f/2.8 on the same camera?

sigma lens-design mirrorless sony-e-mount 24-70mm

Photography Stack Exchange contributor

6y ago

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Is aperture-click noise on startup/shutdown normal with a Sigma 100-400mm on a Sony A6500?

sigma sony telephoto-lens aperture noise

Photography Stack Exchange contributor

6y ago

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103

Why does my Sigma 35mm f/1.4 Art show a large circular artifact on a Canon 6D Mark II?

sigma full-frame lens-correction canon-6d-mark-ii artifacts

Photography Stack Exchange contributor

6y ago

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Why am I seeing circular artifacts in some shots with a Canon 5D Mark IV and Sigma 35mm Art?

sigma canon lens-corrections 5d-mark-iv artifacts

Photography Stack Exchange contributor

6y ago

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What mount is on my Sigma 17-70mm f/2.8-4 DC lens if it’s smaller than Canon EF?

sigma lens-mount 17-70mm sigma-sa compatibility

Photography Stack Exchange contributor

6y ago

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Can a Sigma 50mm f/1.4 work for macro with Kenko extension tubes?

sigma macro extension-tubes 50mm manual-focus

Photography Stack Exchange contributor

6y ago

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127

Why does my Sigma 10-20mm freeze or stop the shutter on a Nikon D7100?

sigma nikon lens-compatibility autofocus d7100

Photography Stack Exchange contributor

6y ago

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111

Canon 7D Mark II and Sigma 50mm f/1.4 Art back-focusing: can the Sigma USB Dock fix it?

sigma autofocus canon af-microadjustment back-focus

Photography Stack Exchange contributor

7y ago

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186

What modern camera bodies are compatible with lenses from a Pentax MZ-50?

sigma lens-compatibility dslr k-mount pentax

Photography Stack Exchange contributor

7y ago

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Is a Sigma 35mm f/1.4 a worthwhile upgrade from a Canon 50mm f/1.8 on APS-C?

sigma canon prime-lens aps-c portraits

Photography Stack Exchange contributor

7y ago

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119

Can fine dust in a lens make autofocus stick, and can I clean it myself?

sigma nikon autofocus dust lens-repair

Photography Stack Exchange contributor

7y ago

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