iso 2500 noise and IR under artificial light

[gumshoecamus]

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hi everyone

had the m8 a few days now and exploring what it can do with low and artificial light. here is something I made at borough market in london earlier this evening. I put the carrot in my pocket and gave it a warm home (ie my oven). iso is 2500.

am finding raw developer brings out more detail than C1 or ACR (which is consistent with my experiments with other cameras and software). as you can see in the 100% crop in my next post, there is some noise but it is regular and quite fine. on close inspection there was some purple fringing around the blown highlights in the puddle -- you can't see the fringing here because I removed it with the replace colour function in photoshop. the reflected light in the puddle is flourescent and tungsten, but the image is balance for tungsten-ish. could the fringing be an IR problem ? doen't look like a lens problem to me.

lens was zeiss 28/2.8 at f2.8 1/30s (I think), no IR filter (waiting for my leica freebies).

[gumshoecamus]

here is the 100% crop

 

ps please excuse the jpeg compression -- max compression to make it samll enuough to upload

will add a smaller crop with no compression

[gumshoecamus]

without going on too much...

here is another 100% crop with minimum jpeg compression

this one shows purple fringing -- before my photoshop work

[gumshoecamus]

now the same crop after photoshop work -- purple fringing gone