
The Sigma DP1M is essentially the same as the DP2M both in the body and operation. The only difference is that the DP1M has a 19mm (equivalent to ~28mm on the 35mm system) fixed focal length lens while that on the DP1M is 30mm (equivalent to 45mm on the 35mm system). All other differences between the 2 cameras be it image quality or use of accessories are related to the differences in the design of these lenses.
When I got my DP1M, the first thing I did was to see if the accessories of the DP2M could be used on the DP1M. Well, it turns out that the hood (LH2-01) of the DP2M could not be used on the DP1M as the opening in the LH2-01 lens hood is too small and would cause vignetting if used on the DP1M. The DP1M has its own dedicated lens hood in the form of the LH1-01 which unfortunately was not available when I got my DP1M.
Though the DP2M has a close-up lens (AML-2) listed as an accessory, there is no such close-up lens listed for the DP1M. Nonetheless, I found that the AML-2 close-up lens could still work on the DP1M which being a wide angle lens would be useful for close-up shooting on its own. The use of the AML-2 on the DP1M turns it into something else altogether. Example of shot taken with the DP1M + AML-2 without cropping:
#1

1/25s f/8.0 at 19.0mm ISO 100
I then took the DP1M for a spin downtown in the late afternoon. It was not a good day to shoot due to the haze and the time of day but I was impatient to try it out. So here are a few of the first shots from the DP1M...
#2

1/250s f/8.0 at 19.0mm ISO 100
#3

1/10s f/4.5 at 19.0mm ISO 100
#4

1/40s f/4.0 at 19.0mm ISO 100
More images and findings on the optical quality of the DP1M lens to come...



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