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Announced Feb 11, 2002 •
3 megapixels | 1.8″ screen | APS-C sensor
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A long time ago, I had a problem with reds with a Sigma SD9 used to shoot watches under CFL lighting. Not that I seek assistance with that issue which is long gone. However, I did buy a 24-patch Macbeth color checker card to investigate that issue, which I resolved by selling the camera. A bit naive, I should have sold the card instead ;-) So, currently, I've been using the card to compare color rendition of my four Sigma cameras. On the basis of comparison, I've been able to ignore the...
I have a range of Sigma lenses going back to 2003. After having been on the Sigma bandwagon and acquiring each new camera release, I couldn't keep fighting the quality control issues. Question being…. if I purchase an SD1, will it work with older as in 2003 onward Sigma lenses, all EX+ lenses, or will I have to send the camera in to Sigma and have all the lenses configured to work with the camera? Not having followed the threads for quite awhile, am asking. Where I left off was the last time...
Hi mates, I'm currently a DP2m user as well as a Fuji X system user. I've been shooting pictures for over 1 year with different lenses but never tried shooting with a flash:-(. Therefore, I sincerely want to have some advice on flashes from you and any contribution will be appreciated;-). Well, based on the search in this forum and other websites, I had these following ideas in my mind: 1. Metz 20 C-2, which had been recommended by a lot of people in this forum. However it's not cheap in my...
For example: DP2 vs. DP2s? All my Sigma DSLR's are compatible with all my various converters. Therefore, my current philosophy does not include SD15, Merrill, Quattro. I am aware that the DPnX models have an AFE similar if not the same as SD15. So, not interested in those. Thinking of trading or selling the SD9 for a DP1s or DP2s model but first I need to know that, for example, FastStone Viewer will open a DP1s or DP2s file without color cast, etc. OT, but any comments about DP1s vs. DP2s...
Hopefully, we all know that LO res is obtained by binning pixels on-chip, using Foveon's VPS technology, and that the binning for LO res is 2x2. Thus, for the SD9, we get 1134x756px images from 2268x1512px. So, for the Merrill's 4704x3136px, we would expect 2352x1568px, would we not? Curiously, what we get is 2336x1568px (an aspect ratio of 1.49, not 1.5), see here: http://www.dpreview.com/reviews/sigmasd1/2 Why? Anybody know for sure? --A good post is short on words and long on references....
The question assumes 100% fill factor and round :-O pixels, to keep the question simple. Let's say that, for a particular set-up, a CoC calculation (rightly or wrongly) gives a value of 0.014mm at the sensor but I insist on using 2x2 binning on a Sigma SD9 or SD10 giving an 0.018mm 'diameter' pixel. Would the DOF be that for 0.014mm or that for 0.018mm? Putting that another way, does the sensor pixel density px/mm^2 have an intrinsic DOF when projected out to the subject plane? I'm thinking...