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DP2m: first images, first problems

Started Oct 28, 2015 | Discussions thread
OP mclaudio Regular Member • Posts: 264
Re: DP2m: first images, first problems

Roland Karlsson wrote:

mclaudio wrote:

(•) First images

WOW - it seems you have used at least one other camera before I am impressed. Nice images.

many thanks Roland, very appreciated

(...)

For some mysterious reason, Sigma has chosen to (by default) enhance local contrast greatly for Merrill sensors. In later versions of SPP you are supposed to be able to "fix" that by using portrait mode.

I did not know the portrait mode applies also to Merrill cameras, I will give a try, thanks

OK - that gritty, dirty look when the local contrast is exaggerated has its charm, but gets tiresome in the long run IMHO.

I have the same feeling, in addition, the texture of stones becomes to "aggressive" for my taste

BTW, it is not really micro contrast,

sorry for my lack of terminology and ignorance, actually I'm using negative clarity in LR5 to reduce this effect

which is at pixel level, but rather like using "clarity" in Lightroom, adding higher contrast to textures.

(3) The WB and the colors are improved w.r.t. the ones of the DP2. I use AWB that I correct to my taste in SPP, but some times it is quite difficult to find a good WB. I know that somebody hate AWB, but when I try all the other WB options in SPP they are really far from the one I like (in general they have a strong yellowish cast). I never understood if there is a difference to change the WB in SPP or to use directly a specific WB when one takes the image.

Colorwise, the Foveon sensors are strange beasts. White balance is not, like for RGB cameras, a matter of balance between the RGB channels. There are different conversion matrices for each white balance. Many have been the problems seen when trying to fix colors. Now, the later cameras (e.g. Merrill and Quattro) are better than ever regarding color.

I agrre, "colorwise", the DP2m seems much better than my DP1s and DP2

So, if you have a strange lighting, you'd better measure it using AWB or using custom WB. Can be a bit tricky otherwise.

ok, thanks again

-- hide signature --

Claudio

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/Roland
Kalpanika X3F tools:
https://github.com/kalpanika/x3f

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