Re: A thinner sensor stack may be possible after all!
Taylor,
Are you seeing that with AWB or (for example) daylight shots with Daylight setting? I generally use AWB since I process from RAW, and have not seen anything that strikes me as a problem. I\'ve been meaning to pull out my strobes that I know are 5500K and check it, but have not gotten round to that yet.
Certainly it is possible that the WB changes slightly since the stack shapes the response in the visual range to compensate for the non-flat sensor response. Sony would fine-tune the firmware for the combined response of the factory combination in the preset WB modes.
Michael
Post Script...
I did a quick test using a tungsten light source, shooting in my bathroom where I have a white sink. Set white balance on Tungsten, took the RAW file into light room and used the WB eyedropper on the sink. Your observation seems correct...
Lightroom shows the \'As Shot\' at 2750K and +5 toward Magenta on the Green-Magenta slider.
Balancing on the sink moves to 2650K and +16, slightly more Blue and more Magenta (less green).
The eyedropper adjustment looks right on my calibrated monitor. I don\'t have an un-modified camera handy to compare, but I think it\'s likely there is a slight shift.
You can adjust the presets with the A-B and G-M fine tuning adjustments in the Sony. At least on this quick test, +2 Magenta and +2 Blue bring the \'As Shot\' and the eyedropper settings into line.
Re: A thinner sensor stack may be possible after all!
Taylor,
Are you seeing that with AWB or (for example) daylight shots with Daylight setting? I generally use AWB since I process from RAW, and have not seen anything that strikes me as a problem. I\'ve been meaning to pull out my strobes that I know are 5500K and check it, but have not gotten round to that yet.
Certainly it is possible that the WB changes slightly since the stack shapes the response in the visual range to compensate for the non-flat sensor response. Sony would fine-tune the firmware for the combined response of the factory combination in the preset WB modes.
Michael
Post Script...
I did a quick test using a tungsten light source, shooting in my bathroom where I have a white sink. Set white balance on Tungsten, took the RAW file into light room and used the WB eyedropper on the sink. Your observation seems correct...
Lightroom shows the \'As Shot\' at 2750K and +5 toward Magenta on the Green-Magenta slider.
Balancing on the sink moves to 2650K and +16, slightly more Blue and more Magenta (less green).
The eyedropper adjustment looks right on my calibrated monitor. I don\'t have an un-modified camera handy to compare, but I think it\'s likely there is a slight shift.
You can adjust these with the A-B and G-M fine tuning adjustments in the Sony, if you frequently use the fixed WB settings. Looks like about 2 Magenta moves that to +17. I don\'t have more time to fiddle with the A-B setting, but this is all you have to do, methinks.
Re: A thinner sensor stack may be possible after all!
Taylor,
Are you seeing that with AWB or (for example) daylight shots with Daylight setting? I generally use AWB since I process from RAW, and have not seen anything that strikes me as a problem. I\'ve been meaning to pull out my strobes that I know are 5500K and check it, but have not gotten round to that yet.
Certainly it is possible that the WB changes slightly since the stack shapes the response in the visual range to compensate for the non-flat sensor response. Sony would fine-tune the firmware for the combined response of the factory combination in the preset WB modes.
Michael
Post Script...
I did a quick test using a tungsten light source, shooting in my bathroom where I have a white sink. Set white balance on Tungsten, took the RAW file into light room and used the WB eyedropper on the sink. Your observation seems correct...
Lightroom shows the \'As Shot\' at 2750K and +5 toward Magenta on the Green-Magenta slider.
Balancing on the sink moves to 2650K and +16, slightly more Blue and more Magenta (less green).
The eyedropper adjustment looks right on my calibrated monitor. I don\'t have an un-modified camera handy to compare, but I think it\'s likely there is a slight shift.
You can adjust these with the A-B and G-M fine tuning adjustments in the Sony, if you frequently use the fixed WB settings.
Feb 15, 2015 at 07:43 PM
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