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First real review of the DPQ2
- Thread starter G43
- Start date
You are right. He did. It is criminal to apply NR to a converted RAW file. :loco:SIGMA!
No borrow terms here in the country I live in.Just try the camera out and decide for yourself.
Please sombody else...
Sigma (Foveon) has done this from the very beginning. I'm not unconvinced ALL camera manufacturers don't as well---but the Sigma color data is noisy, and they use some very clever methods to get color and details out. The noise patterns from the Foveon chip is different than CFA chips---and they have to be handled differently. The noise reduction is influenced by WB (I think) as well as the chroma and luma NR settings (that weren't available before the Merrill generation). The magenta/green blotching that you notice in underexposed images is low frequency noise that remains after you take out the high frequency noise---and it's difficult to get rid of. It's a fundamental aspect of the stacked sensor (someone mentioned them liking 'light'---and they do!). Foveon has continuously worked on improving this, and the current generation is much better than the SD9.
With regards to the Quattro, they probably have some tweaking to do---as mentioned, the cameras evolve with newer firmware and software. (Sometimes they may deevolve too... but we hope not!)
I don't know what to do with my hate-love relationship to the DPQ until I try one.
It will soon show what's right and wrong with either sensor, the cameras HW and the PP program.
Even Lloyds scenes are only indicating what to expect for a finished and PP'ed image. He does not process the files, but merely show what you get from a RAW conversion by means of SPP6.
His newly posted bus scene is very demanding and shows the strengths and weaknesses quite clearly. The image is no art, but exposes a lot of the potential the files contend.
I would be able to PP such a file as if it was out of a much higher pixel count and simultaneously get top notch sharpness, contrast and detail. That is of course if the files behaves like recorded by a Bayer sensor, which is unanswered for now.
It will soon show what's right and wrong with either sensor, the cameras HW and the PP program.
Even Lloyds scenes are only indicating what to expect for a finished and PP'ed image. He does not process the files, but merely show what you get from a RAW conversion by means of SPP6.
His newly posted bus scene is very demanding and shows the strengths and weaknesses quite clearly. The image is no art, but exposes a lot of the potential the files contend.
I would be able to PP such a file as if it was out of a much higher pixel count and simultaneously get top notch sharpness, contrast and detail. That is of course if the files behaves like recorded by a Bayer sensor, which is unanswered for now.
I paid diglloyd $50 to do it for meJust try the camera out and decide for yourself.
probably done a better comparison than I ever could.
The Ute
Well-known member
Guess that's up to you.I paid diglloyd $50 to do it for me
probably done a better comparison than I ever could.
I like doing my own homework.
I tend to forget about *rendering*. The naked files renders unemotionally. I am not touched by those files. Like the output is merely technical and sort of dead.
I get a totally different feeling looking at files like not only by the DPMs, but certainly also files produced by the 645Z or the A7S low ISO.
I get a totally different feeling looking at files like not only by the DPMs, but certainly also files produced by the 645Z or the A7S low ISO.
I have downloaded a few of the images here on this site Sigma dp2 Quattro - zdj
and processed them in Photoshop.
This is actually not quite serious, but it indicates what kind of DR and latitude the files shows. Imaging I had the RAW file.. it would be a different conclusion found below:
It is possible to dig out tremendous contrast by using curves in PS. Hue and color adjustments. Dodge and burn. Two or three sharpening passes seems adequate. One unsharpen mask at appr. 25-25% at appr. 100 pix level, one smart sharpening pass at 100%, 0,2 pix.
It is almost impossible to generate halo effects or make noise visible.
Dodging high lights in the shadows really develop pretty deep.
It is very very promising. But again my experiment is a simpletons work. Not really useful.
and processed them in Photoshop.
This is actually not quite serious, but it indicates what kind of DR and latitude the files shows. Imaging I had the RAW file.. it would be a different conclusion found below:
It is possible to dig out tremendous contrast by using curves in PS. Hue and color adjustments. Dodge and burn. Two or three sharpening passes seems adequate. One unsharpen mask at appr. 25-25% at appr. 100 pix level, one smart sharpening pass at 100%, 0,2 pix.
It is almost impossible to generate halo effects or make noise visible.
Dodging high lights in the shadows really develop pretty deep.
It is very very promising. But again my experiment is a simpletons work. Not really useful.
Yes, but that makes neither useless. PP is not only about contrast and details.
I can't imagine a photo life without the PP. I need to make local adjustments on all my work. I would guess that would be the case with the DPM files as well.
I was curious to see what a lousy JPEG file would layer. What impress the most is the lack of noise even you pull or push the file hard.
I can't imagine a photo life without the PP. I need to make local adjustments on all my work. I would guess that would be the case with the DPM files as well.
I was curious to see what a lousy JPEG file would layer. What impress the most is the lack of noise even you pull or push the file hard.
I did all the files from the Polish site. That is those which were not shaken, subject out of focus and ETTR. There is not much left on the site to use for a judgement.
What I found is covered in my post above, but there's some color adjustment issues that Lightroom and Photoshop does not quite do right. Just about close to right. The JPEGs on the site seems to have been either damaged by the in camera RAW to JPEG developer or the SSP6 conversion.
Without the original RAW and SPP6 it is not possible to dig deep enough and conclude.
However I can assure the OOC RAW will contend hilarious deep information and that the files will show enough latitude that it is possible to get the tonality just about perfect.
The sharpness and detail you will be able to develop from a RAW file will be enough for anybody I would claim. I believe the subjective resolution will be closer to the 645Z with their best SDM lenses rather than closer to cameras like D800E or A7R used with the best glass.
The Sigma lens is no less than outstanding. I don't think the MTF curves given by Sigma lies.
All that said... the rendering OOC is somewhat a tad too dull.
What I found is covered in my post above, but there's some color adjustment issues that Lightroom and Photoshop does not quite do right. Just about close to right. The JPEGs on the site seems to have been either damaged by the in camera RAW to JPEG developer or the SSP6 conversion.
Without the original RAW and SPP6 it is not possible to dig deep enough and conclude.
However I can assure the OOC RAW will contend hilarious deep information and that the files will show enough latitude that it is possible to get the tonality just about perfect.
The sharpness and detail you will be able to develop from a RAW file will be enough for anybody I would claim. I believe the subjective resolution will be closer to the 645Z with their best SDM lenses rather than closer to cameras like D800E or A7R used with the best glass.
The Sigma lens is no less than outstanding. I don't think the MTF curves given by Sigma lies.
All that said... the rendering OOC is somewhat a tad too dull.
