Archives for 2013

In about two weeks, I’ll be participating in a workshop on raw processing. The workshop, sponsored by the Center for Photographic Art in Carmel, brings together three developers of raw developing software (Eric Chan from Adobe, Brian Griffith from Irident Digital, and Lionel Kuhlmann from Capture One) and two photographers (Charles Cramer and myself). The… [Read More]

From the mailbag: I really like the Stealth option on the Sony RX1.  How did you get that look on the RX1?  This may sound ignorant but did you cover all the front white labeling with a Sharpie or something like that and if so how is the result? I was hoping someone would ask… [Read More]

The Nikon D4 uses all 14 of its bits all the time except for those lost to digital white balance. The Nikon D800E is at 14-bit device with all codes present except for those lost to digital white balance until the ISO knob gets to 3200. Then the gain of the analog amplifier stops increasing… [Read More]

At ISO 100, it looks like the NEX-7 has a 12-bit ADC: At ISO 200, more noise: at ISO 400 still more noise. Note that we’ve not seen the bucket at 32 counts occupied in one of the histograms so far : At ISO 800, still more noise, and still nothing happening at count 32:… [Read More]

At ISO 100, there’s a big surprise; the 14th bit is AWOL: At ISO 200, pretty musc the same thing with a bit more noise. The odd dip to the left of the mean of both green channels is curious: More of same at ISO 400: At ISO 800, the red channel is clipping: At… [Read More]