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Tuesday, March 20, 2012

K-5 Vs NEX-3 IQ Shootout (Same Lens, Same Scene, Different Bodies/Sensors)



1. K-5 image - DA21 lens, ISO 100, 1/250s, f/6.7, Natural/Saturation +1, Fine Sharpness 0, AWB, autofocus (checked with both PMAF and LV CDAF - same focus point there!), resized to 3,999 pixels in width, EXIF preserved:-


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2. NEX-3/5 image - DA21 lens, ISO 200, 1/500s, f/6.7, Landscape/Contrast -1, Sharpness 0, AWB, manual focus w/ peaking at/from 1X to 7X and then 14X, resized to 3,999 pixels in width, EXIF preserved:-


(Click to Enlarge in a New Tab/Window)

P.S. The scene was actually with warm sunlight from the left hand side when the time was near early evening. The NEX image turned out to be a bit too yellowish for the whole frame than my eyes could see whilst the K-5 one is just too white for the buildings and a bit too blue for the rest.

Comments (6)

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M'y opinion is that thé Auto WB of thé K5 is slightly cold. I defined à permanent A3 shift of the Auto WB.

Press WB select Auto then press right key to set WB correction, then 3 Times the right key to shift WB towards Amber. You Will get thé same Colors as daylight WB.
JeanPascal's avatar

JeanPascal · 680 weeks ago

I think it all depends on what you expect from AWB.
The NEX output is definitely too yellowish for my taste . I didn't see the scene from my own eye so I can't say which photo is more accurate.
The K-5 output, on the other hand, kind of corrected the warmth of the sunset. I looks extremely natural and pleasing to me although it probably doesn't depict correctly the scene looked at from the naked eye.

If you shoot indoors with ugly light I expect the AWB to adjust to make it more natural. In most cases it works. The same applied here.
For me AWB is not WYSIWYG, it's "adjusting" to lighting conditions to avoid color cast/hue. The K-5 clearly succeeded here.
It may work differently on other systems but from K-x & K-5 experience, it seems to work like this to me.
Disclaimer: I never shoot AWB
2 replies · active 680 weeks ago
Absolutely right =)
OK. That's right.

But i had a K20D and the AWB was not as blue as on my K5 (i can see the difference in my images).

With a correction of A3 (Amber +3) of the AWB colors of the K5 are the same as K20D.
Michael A.'s avatar

Michael A. · 680 weeks ago

RH, try Landscape on K-5 as well and leave Sat 0, Highlight Correction ON - it doesn't slow it down ( Pg. 214, but leave Shadow Corr. OFF! ) you might like it better...
1 reply · active 680 weeks ago
Thanks for the advice and will see if it works!

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