Questions tagged “lens calibration”

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

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162

Why does autofocus back-focus outdoors but seem fine when I test it at home?

autofocus back-focus wildlife-photography nikon-d7000 lens-calibration

Photography Stack Exchange contributor

6y ago

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166

Do Sony E-mount lenses need autofocus calibration like Sigma lenses with the USB Dock?

autofocus sony e-mount mirrorless lens-calibration

Photography Stack Exchange contributor

7y ago

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138

Can I use paper as a diffuser for lens vignetting calibration?

diffuser micro-four-thirds vignetting wide-angle lens-calibration

Photography Stack Exchange contributor

9y ago

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243

How can I identify the projection type of a fisheye lens and estimate its distortion?

opencv distortion fisheye hugin lens-calibration

Photography Stack Exchange contributor

9y ago

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122

How can I improve sharpness with my Sigma 50mm f/1.4 DG HSM?

sigma autofocus 50mm sharpness lens-calibration

Photography Stack Exchange contributor

9y ago

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239

How does Sigma’s USB Dock lens calibration work, and is it included with Art lenses?

sigma autofocus usb-dock third-party-lenses lens-calibration

Photography Stack Exchange contributor

9y ago

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169

How can I test whether my Sigma 17-50mm f/2.8 is misfocusing on a Canon 70D?

autofocus sharpness canon-70d sigma-17-50mm lens-calibration

Photography Stack Exchange contributor

10y ago

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110

Is my Nikon D80 causing focus and noise problems, or should I check technique and calibration?

nikon autofocus image-noise lens-calibration d80

Photography Stack Exchange contributor

10y ago

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278

How can a lens consistently front-focus or back-focus on a DSLR?

autofocus back-focus dslr front-focus lens-calibration

Photography Stack Exchange contributor

10y ago

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118

How can I accurately test and fine-tune autofocus on a 35mm f/1.4 lens?

focus-testing autofocus 35mm sharpness lens-calibration

Photography Stack Exchange contributor

10y ago

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120

Why is my Sigma 28-105mm only sharp on a Nikon D7000 when stopped down to f/13-f/16?

sigma nikon autofocus sharpness lens-calibration

Photography Stack Exchange contributor

12y ago

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125

What happens when a DSLR body and lens are calibrated together, and can it affect other lenses?

nikon autofocus dslr focus-accuracy lens-calibration

Photography Stack Exchange contributor

13y ago

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141

Does changing aperture affect vignetting and flat-field correction?

flat-field aperture vignetting optics lens-calibration

Photography Stack Exchange contributor

13y ago

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147

Why does a telephoto zoom seem to back-focus at the wide end?

nikon telephoto-zoom autofocus back-focus lens-calibration

Photography Stack Exchange contributor

13y ago

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151

Why is autofocus micro-adjustment usually tested at about 5–50× focal length?

focus-testing microadjustment autofocus technique lens-calibration

Photography Stack Exchange contributor

13y ago

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116

Canon EOS 450D focuses accurately in Live View but misses through the viewfinder — can this be adjusted?

live-view autofocus canon eos-450d lens-calibration

Photography Stack Exchange contributor

14y ago

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104

FoCal vs LensAlign Pro for autofocus microadjustment on a Canon 7D

focus-testing microadjustment autofocus canon-7d lens-calibration

Photography Stack Exchange contributor

14y ago

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151

Do Canon service-center lens/body calibrations survive firmware updates?

autofocus canon magic-lantern firmware lens-calibration

Photography Stack Exchange contributor

14y ago

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140

Why are my Sigma 24-70mm f/2.8 portraits still soft on a Canon 40D?

sigma autofocus soft-focus canon-40d lens-calibration

Photography Stack Exchange contributor

15y ago

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Do autofocus front/back focus microadjustments change over time?

microadjustment autofocus back-focus front-focus lens-calibration

Photography Stack Exchange contributor

15y ago

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