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Puzzled Lens Testing - m43 lenses on e-m5

Started Apr 21, 2013 | Discussions thread
Anders W
Anders W Forum Pro • Posts: 22,144
Re: Puzzled Lens Testing - m43 lenses on e-m5

Corpy2 wrote:

Anders W wrote:

Corpy2 wrote:

A few days ago, with a friend I ran a series of tests comparing my friend's Olympus 14-150 on his e-m5 against various lenses on my e-m5.

We shot the same shots at distances of minimum 50 to 300 feet or so, targets with lettering. Each shot was only in raw,

Completely useless to shoot RAW and then try to judge MTF (resolution, microcontrast) on the camera. What you actually looked at was very low-quality jpegs embedded in the RAW files.

Precisely because the jpegs embedded in the RAWs are too poor for good in-camera review, I regularly shoot RAW + Fine jpeg where the jpegs are used for in-camera review only.

Wait. As I replied to the other person, I am able to zoom in and see tiny detail, the kind that I would only normally be able to see if pixel peeping on a computer screen.

If I were only looking at very low quality jpg's, the jpg's should fuzz out vcery quickly once I start zooming in a bit, should they not?

You can zoom in fully even on these low-quality jpegs. It's just that they look poorer when you do so than a high-quality jpeg or what you get if you open the RAW file in the RAW converter.

 Anders W's gear list:Anders W's gear list
Panasonic Lumix DMC-G1 Olympus PEN-F Olympus E-M1 II Panasonic Lumix G Vario 14-45mm F3.5-5.6 ASPH OIS Panasonic Lumix G Vario 7-14mm F4 ASPH +20 more
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