I took this photo at Joshua’s Restaurant & Tavern in Brunswick, Maine just to document for my wife and me that we’d had some good pizza there during a little two-day December vacation-between-holidays.
[I also made note of my new favorite beer, Chaga Stout, brewed by Lone Pine Brewing Company in Portland, Maine. Maine has become quite the place for craft brewing.]
In no way does this image have any value to me, other than documenting our evening out. But what amazed me is how nice it looks, even though the iso was 25,600! Your mileage may vary, of course. And I have to admit that perhaps the texture of the main subject, the pizza, may be hiding some of the noise, and I did move the noise reduction slider in Lightroom Classic CC to a very conservative 25.
GM5 Panasonic at ISO 25,600
I had in the pocket of my down jacket (it is cold in Maine in December!) the little Panasonic GM5 with the 12-32 kit lens. This shot is at the 12mm focal length. Aperture priority was set at F8 (though I don’t know why I didn’t shoot wide open at F3.5 so as to get another 2+ stops of light!) Shutter speed chosen by the camera was 1/15 which I believe is the slowest speed when using aperture priority. Auto ISO chose 25,600.
I think this looks pretty good for such a high ISO. Let me point out that this camera model is now four years old. I'd expect the newer m4/3 to perform better. But then, this is all I had with me other than a cell phone.
Ten years ago when I started with 4/3 gear (Olympus E-500), which used the same sized sensor as m4/3 bodies, I would never have imagined getting a shot at iso 25,600. I can’t remember, but the highest setting back then might have been only 3,200, and even at that the colors and noise blotches were terrible.
All that being said, if I were to be in the same situation again, I’d try to get the ISO lower. Wide open at F3.5 would have brought auto ISO down to perhaps 6,400.
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