How can you adjust jpeg compression in Olympus O-MD E-M1?

Started Mar 4, 2014 | Questions thread
OP Strawberry Pie Forum Member • Posts: 94
Re: How can you adjust jpeg compression in Olympus O-MD E-M1?

Digital Dick wrote:

I think most of us reading this thread are of the opinion that you are mistaking over sharpening and too aggressive noise reduction for compression artifacts.

You're right.

Here's where I went wrong. I shot tests in jpeg+raw mode, and imported them into Aperture. Then I flipped back and forth between the two, observing detail at 100%. My mistake was to assume that the camera settings for sharpness were applied to both the jpeg and the raw file.  I attributed the differences in the image to compression effects. However, the sharpening setting evidently only affects the jpeg; Aperture is ignoring whatever data about the in-camera sharpeness setting is provided in the raw file. The differences I saw were thus not due to compression; they were due to differences in sharpness and noise reduction applied to the jpeg. (Yes, "duh".)

Thanks for persevering to point this out, despite my obstinate insistence on a different and flawed line of reasoning....


 Strawberry Pie's gear list:Strawberry Pie's gear list
Olympus E-M1 Nikon AF-S DX Nikkor 16-85mm f/3.5-5.6G ED VR Nikon AF-S DX Nikkor 10-24mm f/3-5-4.5G ED Nikon AF-S Nikkor 70-300mm f/4.5-5.6G VR Olympus M.Zuiko Digital ED 60mm 1:2.8 Macro +2 more
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