Jack,
No offense, but the very first post includes a 100% crop and is showing FAR more detail than any crop you have posted here.
I did not mean to offend you, and you seem to take my remarks wrongly: I think we are all professionals and adults to be able to speak and discuss something, even if we don't agree. But you have to be honest and agree here that what is shown is simply not of good IQ.
Look at the detail in the clover petals and the dead leaf in the first post. Show me something similar from the Sinar that you think is better; a small leaf at about 7 meters distance with your 80mm lens that shows more detail please. And if it includes as much range of light as that one of mine, so much the better
As for the side-by-side ISO 100 and 1600 crops being in focus, as I mentioned THE WIND WAS BLOWING so the parts at the focus plane are not sharp anyway -- I simply chose a part of the image that showed a range of tones and noise.
First correction: I did not use a 80mm lens, but the Zeiss 110/f2.
But do you honestly think that there are no details in my sample?! In this case I guess that we don't have the same definition of what is details.
There are details in my samples: all the 100% details show sharpness, deep clean shadows and detailed highlights, with no painterly look and artifacts. I think everybody would agree to this (and has already). I think I have put enough 100% crops to show these details, with shadows going from deep black to whites, and in-between a tonal range and details everywhere, including in the deep shadows and in the highlights.
I have even put at disposal the raw DNG of this image, for download and for people to check by themselves. I don't think that from this DNG one can say that there are no details and no tonal range.
I am ready to believe that the P45+ can do better at this setting, but please don't compare this with my sample and say that you have more details: all parts of the image and details shown have a very strong painterly look, which implies for me that there was NR going on, and even a pretty strong one. I would really check your NR setting in C1: it MUST be on and set to nearly maximum.
As for the side-by-side ISO 100 and 1600 crops being in focus, as I mentioned THE WIND WAS BLOWING so the parts at the focus plane are not sharp anyway -- I simply chose a part of the image that showed a range of tones and noise.
Cheers,
You say that it was windy, but I can see some pretty sharp parts in the image: when you have a look at your first posted ISO 100 detail 100% you can easily see that the thin grass strands are exactly in the focus plane and sharp or sharper than the rest. Now look at the same detail with the ISO 800 and check what happens with these thin grass strands.
And to be honest, with the risk of being told to have a biased behaviour or an agenda here: I even think that the ISO 100 does not look good at all.
Jack: please check again your PP and what could have been going wrong or do this test again. I don't believe that this is the best one can get.
One further thing makes me think that something went wrong with your provided ISO 800 sample: you said that you had 1/25th at f8 with ISO 800: this seems pretty strange to me. Are you sure? What I mean, is that you should have a much shorter exposure time or smaller aperture (more closed) with this light conditions, IMO.
I have just shot some snapshots this afternoon with my Lumix 10 MPx at ISO 800 and 1600, on some very contrasty subjects: to get the perfect exposure I have to expose at 1/200 minimum at f8 (to under-expose like your sample, even 1/400).
Also in my eMotion 75 ISO 800 sample: I was shooting in the very early morning time, when the sun at the horizon, and my exposure was 1/40th at f5.6. From your image, its highlights and shadows, I deduct or guess that the sun was already high or at least higher than for my test, and thus much more light available. Yes the contrast may be 12 stops, so does my sample (measured with a spot-meter), but the quantity of light available was much less in my image. In fact I believe that your ISO 800 might in fact be over-exposed.
But please and again, don't take this as a bashing against you or a product. It is not. I am simply a professional who cannot say that what is shown is good.
Thanks and best regards,
Thierry