Contrast, microcontrast, and color: A reply to tt321

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Anders W
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Contrast, microcontrast, and color: A reply to tt321
4 months ago

In a recent (now expired) thread, tt321 and I were discussing the impact of contrast/microcontrast on color rendering, especially as it applies to the Oly 17/1.8 versus the Pany 20/1.7.

I promised some additional examples aside from the ones Ming Thein had already put at our disposal and here they are. First a series of test shots by our fellow forum member Keith (aka UnderDriven), with the Minolta MD 50/1.4 at different apertures on a G1. While they are not really shot for the purpose of highlighting the effect of contrast/microcontrast on color rendering, I find them instructive for that purpose nevertheless. Consider in particular the impact of stopping down on the rendering of the foliage, especially the lighter green foliage.

http://www.kotay.net/keith/photo/eval/panasonic-g1/110508.shtml

Second, a series of still-life shots provided by SLR Gear as part of their lens reviews. The lenses I include are all fast native AF primes currently available in the "standard" range (17 to 25 mm), that is, the Oly 17/1.8 and 25/1.8 along with the Pany 20/1.7 and 25/1.4, all wide open. Note that I am not arguing that these samples are perfectly comparable in all regards. One of several things to bear in mind when looking at them is that the 17/1.8 and 25/1.8 were shot with the Pany GX1 whereas the 20/1.7 and 25/1.4 were shot with the Oly E-P1. Here are the links:

http://www.slrgear.com/reviews/zsamples/olympus17f18m/zolympus17f18sl017f18_gx1.jpg

http://www.slrgear.com/reviews/zsamples/olympus25f18m/SL/zolympus25f18sl025f18_gx1.jpg

http://www.slrgear.com/reviews/zsamples/Panasonic20mmf17/zpanasonic20mmf17sl020f17_ep1.jpg

http://www.slrgear.com/reviews/zsamples/Leica25f14dg/zpanasonic25f14sl025f14_ep1.jpg

When looking at these samples, I think it is a good idea to open them all in your browser in such a fashion that you can conveniently switch quickly between them. You might also want to begin by looking at them at ordinary display size, as large as your screen allows you to make it but not larger, before you start pixel peeping. Let me know what you think.

 Anders W's gear list:Anders W's gear list
Panasonic Lumix DMC-G1 Olympus OM-D E-M5 Olympus E-M1 Panasonic Lumix G Vario 14-45mm F3.5-5.6 ASPH OIS Panasonic Lumix G Vario 7-14mm F4 ASPH +21 more
Olympus PEN E-P1 Panasonic Lumix DMC-GX1
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