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| p.2 #4 · RX1 - Resolution and DOF at infinity |
wayne seltzer wrote:
Tariq Gibran wrote:
wayne seltzer wrote:
Tariq Gibran wrote:
Paul Gardner wrote:
Everyone seems to be concerned about Bokue with lots of discussion, but I see very little about how well dof is handled and how well the camera resolves at infinite. I see lots of images of landscapes where the trees in the distance have turned to mush! Let have some discussion on resolution at infinity. So far my D800E with a 24mm F1.8G seems to do a reasonable job, but is there anything in a compact camera that works well with good atmosperics?
I'm guessing you mean the 28 1.8G? If so, when I owned that lens and the D800E, I ran a few tests against the Sigma DP1M (which is similar with regard to focal length) and the results were surprising with the DP1M actually outperforming the Nikon D800E+28 1.8G in some areas of the frame. Part of this was down to the 28 1.8G which seemed to have some field curvature when focused at infinity. Given that experience, I think the only current compact camera to suggest would be one of the Sigma DP Merrills - and the DP1M if you need a wide angle. Both of these Sigma's will outperform the RX1 at base ISO, particularly when used for landscape type subject matter.
Tariq, do you have any side by side comparison shots at different distances and apertures between RX1 and DP1M to back up that statement?
Also not all landscape is done at infinity focus.
Just addressing the question of the OP, which was specifically about infinity performance.
No, I don't have tests with the RX1. That said, it does not seem at all likely - and there would be no reason to believe - that the RX1 would be capable of outperforming the D800E, even with the Nikkor 28 1.8G (which is no slouch stopped down between 5.6 and F8). Therefore, it would seem to follow that the DP1M, if capable of at least matching that performance (D800E+28 1.8G), would likewise outperform the RX1. Nothing against the RX1, which would be a much more versatile camera overall than the Sigma DP's.
Just because you think DP1M outperforms D800E with 28/1.8 doesn't necessarily mean it is better than RX1.
It may, but I would like to see side by side comparisons.
Also I assume you are talking only at infinity and stopped down to f8? I doubt DP1M outperforms D800E and ZF21/2.8. Also when you say outperform you are only talking outresolving and do not take into account microcontrast, colors, etc. right?
Guess I would like to see some comparison shots with other cameras. Anybody have some links? TIA.
The D800E with a really great lens would certainly out-resolve the DP Merrills. The Nikkor 28 1.8G is a good lens but not what I would consider really in the same league as say the best Zeiss or even Sigma lenses for that matter, but it really boils down to what one is shooting with any specific lens of course. So sure, my comparison was with a decent lens. What I found was that in the central area, where the 28 1.8G was tack sharp, it did out resolve the DP1 Merrill - but they were far closer to one another than one would expect. Pretty much every where else, the DP1 Merrill was superior, and not just with regard to resolving power. Better contrast, better color, better micro-contrast you name it.
Having shot - and tested - far too many camera+lens combos than I care to remember, my somewhat educated opinion is that the RX1 is simply outclassed by the DP Merrills with regard to what the OP asked (infinity landscape subject matter). I don't think I"m alone in that opinion - and it's a fairly logical conclusion once images from these two cameras are examined. But yes, it would be nice to have back to back examples for the skeptics.
Here are a few out of my DP1 Merrill showing microcontrast, color, detail... 100% crops follow each full image.
...and here is a quick comparison of the NIkon D800E+28 1.8G and the DP1 Merrill I did for myself a while back. Not really a distant shot but it was enough to convince me of the capability of the DP1 Merrill.
First the scene as rendered by the DP1 Merrill:
Now crops showing 100% details from the DP1M on the left as compared to reduced crops from the Nikon D800E + 28 1.8G on the right: