p.25 #1 · Sigma DP2 Merrill: Have any of you tried it?
No regedit What version of Windows? I think this works on everything from NT 3.51 to Windows 7. Haven't tried 8 yet. Did you type it in the little command line entry field in the Start menu? What if you type it on the command line itself?
Hmm, are you administrator? If not, log in as one. It might not be visible/accessible from a luser account Or, open an Explorer window, browse to C:\Windows and find it there. Right-click, choose Run As Administrator, type your admin password and press Enter.
Actually, I wonder if the Sigma install program assumes that you are an administrator and fails silently if you are not, leaving you with a broken install? If so, log in as admin, and reinstall.
p.25 #2 · Sigma DP2 Merrill: Have any of you tried it?
Well, I've now tried several of these suggestions to no avail I'm afraid. Funny thing is previous version 5.3 worked by a simple download, so why not 5.4?
A real pain that C1 or Adobe doesn't support these files so one could avoid Sigma's amateurish software altogether.
If anyone still has the previous version to share, I would be thankful, because at the present I can't open a single RAW file from my DP2
p.25 #4 · Sigma DP2 Merrill: Have any of you tried it?
Took it fishing with my daughters. To be honest it isn't super compact with the big lens ( as others have mentioned) but it's better than an SLR. I carry it in a bumbag, like some 80's throwback, but at fishing you can get away with it
p.25 #7 · Sigma DP2 Merrill: Have any of you tried it?
glacierpete wrote:
photoArne
have you tried to install the latest drivers for you graphic card? That might help.
I have now, and it didn't make any difference, unfortunately. (But it was no doubt useful to update the drivers)
However I have managed to find version 5.3.2 on the web and downloaded. Works fine.
Guess I'll have to wait until Sigma releases the next update before trying again.
Many thanks for all suggestions.
p.25 #9 · Sigma DP2 Merrill: Have any of you tried it?
Hulyss,
I am getting magenta patches/bloches...like in a blue T shirt, there are lumps of magenta...this is ISO 800.
Do you get this kind of color contamination at low ISOs also?
How do i correct for it? Can you advise?
p.25 #12 · Sigma DP2 Merrill: Have any of you tried it?
Hulyss Bowman wrote:
Hello,
The phenomenon you speak about appear only in high ISO shoots but there is ways to avoid and correct it.
At first, you need to absolutely expose correctly. Foveon expose like negative films. Secondly, SPP provide now tools to take care of most of the colours problems.
Developing X3F need a long learning curve. Not a month. Count a year
Thanks,
I see the fringing removal (magenta/green) tool in spp 5.4, is that it?
Can you point me to a good tutorial or something on learning SPP?
regards,
p.25 #16 · Sigma DP2 Merrill: Have any of you tried it?
Mescalamba wrote:
I wonder..
..if someone would take same pic with D800E and DP2M.
What would have better real resolution?
I don't have the D800E but I'm pretty sure, that the DP2M will have no chance. My guess is that the real resolution of the DP2M is somewhere between the current 24MP cameras and the D800 (without E).
p.25 #17 · Sigma DP2 Merrill: Have any of you tried it?
Although the Foveon sensors have 46 million photosites, they have only 15 Megapixels (pixel = picture element = a rectangular area of the image). Generally, due to the full colour resolution for every pixel, they are considered to get about double the resolution that a Bayer sensor would, from the same number of pixels, i.e. these sensors should get a nice 30MP. Thus, they should out resolve everything in the 135 format DSLR realm, except the D800 and D800E.
p.25 #18 · Sigma DP2 Merrill: Have any of you tried it?
The Nikon D600 and D800 have still the edge in resolution. The Foveon sensor is on a resolution level of a full frame 20Mp Bayer dslr. Roughly. But certainly not yet at 24Mp.
But the DP2M has a very high per pixel quality that is almost free of color aliasing and chromatic aberration.
That is why even the D600 and D800(E) will have a hard time to show an image that will look even more real
unless printed very big. (If you do three vertical stitches of the DP2M you will be on parr with even the D800E.)
It will also be very difficult to find an equivalent lens for the Nikon's that will deliver the same corner to corner sharpness without color artifacts. Even the very best DSLR lenses like a Zeiss 21 mm are beginning to show their weaknesses on the D800(E). A new generation Zeiss lenses is already coming up and of course more will follow. But most of them will be very big and expensive. Very small but very high quality lenses with very high sample to sample consistency can be made very affordable, see what Zeiss is doing for smartphones nowadays. And see Sigma with it's DP2M. The new generation of very high grade dslr lenses are often very hard to make and very costly. And a lot of time and money must be spend on quality control. The other option is to rely more on software correction in camera or in pp.
On a personal level I have been trying for the last couple of years to squeeze out the best of my Bayer sensor camera's with the best lenses I could find and afford, used all RAW converters I could find and studied sharpening procedures extensively but when I saw the recent Foveon examples I knew instantly that this was what I was after.
My main struggle has been to get good detail on the horizon in trees and foliage in our flat Dutch landscape. From edge to edge of the frame. Sofar this has only been possible with medium or large format camera's. Or by making large stitched images.
I have seen images of a sloping grass field taken with the D800 and the DP2M. To me this Foveon shot just looks more real. And I experienced the same with my own gear. There is often just more "there there" as they say in audio.
p.25 #19 · Sigma DP2 Merrill: Have any of you tried it?
Herb, as you put so nicely, DP2M can't be compared to different cameras on linear resolution basis only.
D800 will resolve more? Yes, if we shoot black and white charts. But DP2M has more color resolution.
The per pixel sharpness that DP2M has is not a result of resolution alone, whether 4mp or 14mp or 30mp all X3F files will have similar pixel level sharpness. When i look at a D800 file at 100 percent, i still see blurred detail, foliage etc...even 36mp won't be able to give me definition in leaves, infinity...the mushy ness is still there...which is not the case with DP2M files.
Its not about the number of megapixels.
p.25 #20 · Sigma DP2 Merrill: Have any of you tried it?
@Boris,
Some time ago we talked about optimum aperture for the DP2M. We came to varying conclusions depending the shooting circumstances. During the last week I found the following:
Autofocus is not reliable enough at close range. There will always be a play of a few centimeters. Sometimes depth of field will cover it, sometimes not.
There is some focus shift going on from f/2.8 to f/4-f/5.6. Focus is shifting towards the rear. Also here it might not be noticed due to the depth of field.
There is also a slight field curvature around 1/4 of the outer frame also going rearwards. Again depth of field will mostly cover it.
So there is nothing really to worry about but it can explain why you will find f/4 the optimum and in an other condition f/5.6 or even f/8. By the way I would not hesitate anymore to use f/8-f/11 if this is desirable for the depth of field. The quality in the field is still very high at this aperture.
What version of Windows? I think this works on everything from NT 3.51 to Windows 7. Haven't tried 8 yet. Did you type it in the little command line entry field in the Start menu? What if you type it on the command line itself?
Or, open an Explorer window, browse to C:\Windows and find it there. Right-click, choose Run As Administrator, type your admin password and press Enter.
