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DP2m: first images, first problems

Started Oct 28, 2015 | Discussions thread
xpatUSA
xpatUSA Forum Pro • Posts: 23,017
Preliminary Analysis

Here's the X3F opened in RawDigger's RGB render view:

There are your purples and greens in all their glory. RawDigger uses a fairly simple conversion from raw to RGB and includes none of the fancy stuff that SPP applies even before you see it's review image. And, to me, that says there is a LOT of fancy stuff needed by the DP2M

I also opened the X3F in RawTherapee:

I used RT's SD1M 'overcast' input profile. Still, the obvious discoloration looks depressingly familiar. RawTherapee uses conversion code derived from Coffin's DCraw and clearly does not have SPP's fancy bits either!

I have to say right away that none of my SD1 Merrill captures come even close to being that bad - when opened in either RawDigger or RawTherapee. To me, that points the finger firmly at the DP2M and maybe it's shorter lens distance from the sensor and different lens construction than those for the Sigma mount. Glad I sold mine

My conversion in SPP 5.5.3 looks much like yours:

That locks you into SPP for conversion, IMHO, or perhaps giving Kalpanika a try (I lost my copy in my latest computer death). Sometime, I'll reload it and see what it comes up with in your X3F or maybe someone here can give it a shot and post their findings.

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Ted

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