Pany G7 Shutter Shock, how do you know?

Chris Noble wrote:

TomFid wrote:

Chris Noble wrote:

TomFid wrote:

Chris Noble wrote:

TomFid wrote:

I shoot in e-shutter mode most of the time - you just have to watch out for rolling shutter effects on moving subjects or when panning, and switch to mechanical if needed.

Also DR takes a hit, G7 Raw files are only 10 bits with the e-shutter.

Forgot about that ... that's definitely a downside. My EM5ii doesn't do that.

Yes it does. I just checked a Raw file off DPR for both cameras. They both show missing codes below -7 EV.

Something is fishy then - I just checked a trio of EM5ii images and they all have the same bit depth. Published info on the EM5 indicates that it's 12 bit, so either they're curving down to 10 for storage or things are mislabeled or ... ? Will have to dig deeper when I have more time.

The file format for mechanical shutter and electronic shutter is the same, and is either 12-bit (the m-shutter bit depth for Olympus) or maybe even more. But in e-mode, the data itself is 10-bit, with trailing zeros inserted. That's where you see the missing codes on the Raw histogram.

Based on a quick look in RawDigger, missing codes seemed to kick in at the same point in E, M and EFCS. Will have to play around to be sure.

It's 10-bit to limit the rolling shutter effect.

I assume that means that it's a readout-speed thing?

You may not care about the difference, I'm not getting into a subjective conversation about "Image Quality", just pointing out a technical detail.

I thought I did care, because I hate getting posterization when bringing up shadows. But evidently I don't, because I haven't had any complaints. Maybe the noise floor doesn't really justify the extra 2 bits anyway.