I fired up Iridient Developer 2.2, and processed the M240 DNG images that I’ve been converting in Lr 5. There are several profiles available. I looked at two: one called RDv211 Leica M (Typ 240), and one derived from the DNG metadata. The first yielded results different from in general, but substantially the same in… [Read More]
Leica M240 green shadows with another sample
I am grateful to have received a set of five M240 raw images that are similar to the ones that I used to compare the shadow noise and push color shifts of my M240 and the RX1 in this post. While not exactly the same as the images from my M240, these new images exhibit… [Read More]
Leica M240 unity gain ISO
Using the methods described in this post, I compute the Unity Gain ISO of the M240 at about 400, and the full-well capacity at about 33000 electrons. For comparison to some other cameras, I offer the following two graphs. The Unity Gain ISO of the M240 is right on the state-of-the-art line, and is only… [Read More]
Leica M240 green shadows, part 2
Even though the pushed M240 images at ISO 200, 400, and 800 have a green cast, it is instructive to look at tight crops of the RX1 and M240 images from the preceding post. You can see how the noise varies with ISO, and compare the RX1 noise to that of the M240. The following… [Read More]
Leica M240 green shadows
I thought it might help to get a handle on the M240 green shift when pushed in post to look at the M240’s performance compared to another camera. Was this something that all cameras did, and I’d just never set up the right test conditions? I decided to construct a test image set calculated to… [Read More]
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