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Sigma DP2 Merrill: Have any of you tried it?
  
 
Jede
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p.54 #1 · p.54 #1 · Sigma DP2 Merrill: Have any of you tried it?


Raw file here. Please click with right button and "Save as", Apache doesn't recognize x3f format. ISO100, f/2.8, 6s.


Jan 09, 2013 at 07:46 PM
neilvan
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p.54 #2 · p.54 #2 · Sigma DP2 Merrill: Have any of you tried it?


So yeah, I just downloaded the file and opened it up in SPP. If I look closely at 100% is shows what you are talking about. Again, get your camera checked.

That said, what does that matter? I am 99.9999% sure that will not affect your printed photo at all. Is there a reason you need to share/present your photography at 100%, there could be a reason I cant think of...

This almost makes me laugh and I am not trying to be rude. To me, it's just so strange to be worrying about something like this. Personally, I am more concerned with getting a nicely composed/exposed photo that has some artistic merit. I am absolutely amazed at the quality of the files that come from the DP2 Merrill every time I shoot with it.

If you are doing a lot of photography like the one in question, I would recommend a camera that can handle low light photography better. Maybe a full frame camera would better suit your needs?



Jan 09, 2013 at 08:36 PM
Jede
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p.54 #3 · p.54 #3 · Sigma DP2 Merrill: Have any of you tried it?


I bought this as my only camera, knowing the limitations with high ISO noise. It's what forces me to use ISO100 when possible. I'm not keen to carry around several cameras to suit my needs, as I like to concentrate on subject, composition and exposure, not the camera itself.

It's not a question of whether I need to use full resolution image or not. The camera is marketed as ultimate compact tool for users concerned in absolute image quality. I rarely print my photos, and when I do, it's usually A4 size. I'm happy to live with quirks and limitations that I knew beforehand, and was ready to cope with when selling my X100 to get this.

However, what I'm not ready to accept, is either a clear fault in sensor/cooling design or a faulty sensor. The artifacts are visible when viewing an image fitted to full screen in Aperture (on 2880x1800 MBP monitor), and yes, it's distracting when it's noticeable in every image. It's already a question of double workflow first through SPP and then in Aperture. If I have to do this double workflow over and again in order to get banding minimized after checking the initial results (without compromising the resolution), it's a huge work and takes time.

It's a technical camera, comparable to medium format film cameras in some way. I'm ready to accept limitations, and use it as a landscape camera with tripod and careful preparations. However, the sun doesn't rise at all here in Finland during the coldest winter time, and you really need long exposures even if using a higher ISO, which I for obvious reasons don't want to do. So maybe it's time I call it quits, sell the camera, and buy something else instead? I'm not fond of the Sigma user experience, and the thing that makes me want to use it is final result, and final result only. I can deal with a smaller resolution or a bigger camera, but not obvious flaws in the final image that are because of bad design or a faulty sensor.




Edited on Jan 09, 2013 at 09:00 PM · View previous versions



Jan 09, 2013 at 08:56 PM
neilvan
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p.54 #4 · p.54 #4 · Sigma DP2 Merrill: Have any of you tried it?


Jede wrote:
I bought this as my only camera, knowing the limitations with high ISO noise. It's what forces me to use ISO100 when possible. I'm not keen to carry around several cameras to suit my needs, as I like to concentrate on subject, composition and exposure, not the camera itself.

It's not a question of whether I need to use full resolution image or not. The camera is marketed as ultimate compact tool for users concerned in absolute image quality. I rarely print my photos, and when I do, it's usually A4 size. I'm happy to live with quirks and limitations
...Show more

To each their own, good luck in your quest for the perfect camera.



Jan 09, 2013 at 08:59 PM
carstenw
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p.54 #5 · p.54 #5 · Sigma DP2 Merrill: Have any of you tried it?


I can understand this, a visible flaw in every image is frustrating. Jede, have you tried swapping it for another copy of the same camera?


Jan 09, 2013 at 09:04 PM
kosmoskatten
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p.54 #6 · p.54 #6 · Sigma DP2 Merrill: Have any of you tried it?


Hmm, this is cause for concern and I hope my copy does not display the same performance.
I thought the color banding was virtually non existent on base ISO.



Jan 09, 2013 at 09:21 PM
Luis Cunha
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p.54 #7 · p.54 #7 · Sigma DP2 Merrill: Have any of you tried it?


I can see the lines at 200% magnification (this isnīt real life) both with the RAW+SPP and as a TIFF+ACR/CS5.
Both ProPhoto RGB working colour space.
Maybe this isnīt banding as we usually see. Maybe this is a unit problem. Try another unit before give up if you like the camera IQ.
I live in a country with the sun shining all time (almost 90% of the year); my problems are others .-)



Jan 09, 2013 at 10:20 PM
Jede
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p.54 #8 · p.54 #8 · Sigma DP2 Merrill: Have any of you tried it?


I'll try to amplify the problem tomorrow, as it's more visible with long exposures. I have a feeling that the dog image was the second of two exposures, which would mean two consecutive longer exposures in a row in warm indoor conditions. I remember reading a mention of problems with overheating the Foveon sensor (by Hulyss in Luminous Landscape forum I think).

The closest retailer (and service provider) is 800km away, so I'll try to define the problem completely before sending the camera there.



Jan 09, 2013 at 10:39 PM
sculptormic
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p.54 #9 · p.54 #9 · Sigma DP2 Merrill: Have any of you tried it?


Jede wrote:
I bought this as my only camera, knowing the limitations with high ISO noise. It's what forces me to use ISO100 when possible. I'm not keen to carry around several cameras to suit my needs, as I like to concentrate on subject, composition and exposure, not the camera itself.

It's not a question of whether I need to use full resolution image or not. The camera is marketed as ultimate compact tool for users concerned in absolute image quality. I rarely print my photos, and when I do, it's usually A4 size. I'm happy to live with quirks and limitations
...Show more

Jede, I am sure it is the camera copy. You should return it.
I checked my long exposures at 200% in the corners and no artifacts like yours whatsoever. And those shots are shot in a lot darker situations as yours.

But living in the long darkness of Finland I would probably buy a 6D. (high ISO king)

At least you should get another copy, check it and if you don't like it. Sell it. Not a good idea selling a wrong copy anyway.

Good luck





Jan 09, 2013 at 10:57 PM
Luis Cunha
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p.54 #10 · p.54 #10 · Sigma DP2 Merrill: Have any of you tried it?


Return under the warranty?


Jan 09, 2013 at 11:07 PM
 

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dmbphotography
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p.54 #11 · p.54 #11 · Sigma DP2 Merrill: Have any of you tried it?





Jan 10, 2013 at 12:28 AM
nandadevieast
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p.54 #12 · p.54 #12 · Sigma DP2 Merrill: Have any of you tried it?


I don't care for the banding, really...
I am more bothered about this magenta-green thing...there will be magenta in the middle of the image and green on the corner...don't know in what conditions it will appear, but it does and it will look like a color aberration...color cast if you...don't know how to remove it either...



Jan 10, 2013 at 04:15 AM
neilvan
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p.54 #13 · p.54 #13 · Sigma DP2 Merrill: Have any of you tried it?


nandadevieast wrote:
I don't care for the banding, really...
I am more bothered about this magenta-green thing...there will be magenta in the middle of the image and green on the corner...don't know in what conditions it will appear, but it does and it will look like a color aberration...color cast if you...don't know how to remove it either...


Reading today about the supposed banding problem and your complaint make me happy that the images from my DP2 Merrill come out perfect.

You guys should talk to Sigma directly about your problems. I know their customer service is excellent, at least it was a couple of years back when I had an issue with my SD14.



Jan 10, 2013 at 05:00 AM
nandadevieast
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p.54 #14 · p.54 #14 · Sigma DP2 Merrill: Have any of you tried it?


I don't have any problem with my DP2M. I love its colors. I just mentioned something which i saw.


Jan 10, 2013 at 11:18 AM
juan_amores
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p.54 #15 · p.54 #15 · Sigma DP2 Merrill: Have any of you tried it?


Wonderfull images!!
A few more shots from Consuegra (Spain)


_SDI0422 por John Loves, en Flickr


_SDI0419 por John Loves, en Flickr


_SDI0416 por John Loves, en Flickr


_SDI0417 por John Loves, en Flickr



Jan 10, 2013 at 12:23 PM
Yakim Peled
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p.54 #16 · p.54 #16 · Sigma DP2 Merrill: Have any of you tried it?


Luis Cunha wrote:
Like drunken birds around my head are M8, DP2M, Fuji X-E1, Fuji x100x. I must catch one. Iīm inside a cartoon!!! .-)


Just watch out for the eagle (RX1) who is lurking above. Those poor birds don't stand a chance...

Happy shooting,
Yakim.



Jan 10, 2013 at 12:37 PM
Luis Cunha
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p.54 #17 · p.54 #17 · Sigma DP2 Merrill: Have any of you tried it?


juan_amores wrote:
Wonderfull images!!
A few more shots from Consuegra (Spain)

Banding? ,-(



Jan 10, 2013 at 12:47 PM
Luis Cunha
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p.54 #18 · p.54 #18 · Sigma DP2 Merrill: Have any of you tried it?


Yakim Peled wrote:
Just watch out for the eagle (RX1) who is lurking above. Those poor birds don't stand a chance...

Happy shooting,
Yakim.


Too expensive and I own FF camera. Heavy but FF.



Jan 10, 2013 at 12:49 PM
Jede
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p.54 #19 · p.54 #19 · Sigma DP2 Merrill: Have any of you tried it?


I reseted the camera yesterday, updated the firmware again, reseted the camera and switched to using a different memory card. So far, I haven't gotten the effect visible in the extent before.

However, I see similar artifacts in juan_amores Flickr stream. SDI0417 for example has visible lines in the top sky area on both sides of the topmost windmill blade. You could think of them as jpeg compression dependent thing, but knowing the issue with my camera I most certainly think they are the same thing.

The problem seems to be most distracting with long exposures in the dark, when there are lighter objects involved. But when you know what to look for, it's visible in large even light surfaces like the sky in almost every image.


Backyard snap handheld



Jan 11, 2013 at 10:22 AM
juan_amores
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p.54 #20 · p.54 #20 · Sigma DP2 Merrill: Have any of you tried it?


Jede wrote:
However, I see similar artifacts in juan_amores Flickr stream. SDI0417 for example has visible lines in the top sky area on both sides of the topmost windmill blade. You could think of them as jpeg compression dependent thing, but knowing the issue with my camera I most certainly think they are the same thing.



Hello Jede, I had not noticed that you mention on the windmill photo, I thought they were airplanes contrails



Jan 11, 2013 at 11:04 AM
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