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Forums > Back > Sigma 105mm f/2.8 Macro DG OS HSM:optimum aperture
JJ_SO
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#14
06-22-2017, 08:44 AM
Quote:Is available sharpness curves for these lens : Sigma 105mm f/2.8 Macro DG OS HSM mounted on nikon full frame?
 

Not as curve, but you are in Photozone.de and there is a lens test: http://www.opticallimits.com/nikon_ff/62...ff?start=1

 

Apparently f/5.6 is - as usual when a lens aperture is two stops closed - the aperture with the highest resolution (not the same as best sharpness, depending on definition of "sharpness")
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Messages In This Thread
Sigma 105mm f/2.8 Macro DG OS HSM:optimum aperture - by Martino Papesso - 10-24-2016, 02:54 PM
Sigma 105mm f/2.8 Macro DG OS HSM:optimum aperture - by Martino Papesso - 10-24-2016, 03:58 PM
Sigma 105mm f/2.8 Macro DG OS HSM:optimum aperture - by davidmanze - 10-25-2016, 05:47 AM
Sigma 105mm f/2.8 Macro DG OS HSM:optimum aperture - by davidmanze - 10-25-2016, 05:56 AM
Sigma 105mm f/2.8 Macro DG OS HSM:optimum aperture - by Martino Papesso - 06-22-2017, 08:31 AM
Sigma 105mm f/2.8 Macro DG OS HSM:optimum aperture - by Martino Papesso - 06-22-2017, 08:34 AM
Sigma 105mm f/2.8 Macro DG OS HSM:optimum aperture - by JJ_SO - 06-22-2017, 08:44 AM
Sigma 105mm f/2.8 Macro DG OS HSM:optimum aperture - by Martino Papesso - 06-22-2017, 09:20 AM

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