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Re: Here's a guess
In reply to Rens,
6 months ago
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Rens wrote:
bobn2 wrote:
My guess is that what you've been doing is using the same settings on both cameras, rather than taking the same photo.
Possibly.
Or that you're shooting and viewing in an 'edge' condition.
I don't know what you mean by 'edge' condition
I mean a condition at the edges of the sets of conditions generally encountered, in this case shallow DOF and long shutter speeds delivering more light to the sensor than possible with four thirds.
For example, fi you're shooting a f/8, 1/125, ISO 800 on the D700, the GH1 at f/4, 1/125, ISO 200 will produce results which should be very, very hard to tell apart.
The important word here is 'should'. As stated, I often couldn't decide what made the difference. Compared with the GH1 I find something intangeably special about many D700 images.
Intangibles are treacherous.
However, if you are shooting at the 200 base ISO on the D700, say f/8, 1/125, ISO 200, then you'd need to be using f/4, 1/125, ISO 50 on the GH1 - which is a setting you don't have...
I think you're sugesting that at least some of the difference I was seeing was down to a different DOF. But I often stop down the D700 for landscape DOF. Especially as it can cope with higher ISOs.
But did you stop down to the same DOF as you were getting from the GH1.
And while the D700 will have 1.4 times less noise in the brighter areas, in practice in both cases it is likely that the SNR at base ISO is visually indistinguishable.
Noise was never the issue, especially at base ISOs. And I knew high ISOs would be relatively noisy on the GH1, as on my previous Oly E3, which I liked a lot. I thought that with basically the same sensor I'd be happy with the GH1.
I've since wondered if the difference I found between the GH1 and the E3 was partly to do with the lenses.
That's possible. As I said, intangible things are treacherous. I'm impressed by the way some people for whom understanding how they achieve image quality is important go about finding out. Iliah Borg for instance makes detailed and controlled experiments to get to the nub of the image quality of different cameras, and it can come down to a number of things. There is the CFA characteristic, generally undocumented lens performance such as veiling flare (if lens tests do test it, they do so with a big bright light source and look for obvious flare, but no-one really tests the low level flare caused by low level light sources which can wipe out your microcontrast).
Of course the other possibility, which you kind of suggest, is that you are shooting JPEG and just prefer the Nikon default (or setup you had developed) to the Panasonic style.
I always shoot RAW plus jpeg, but soon stopped bothering with GH1 jpegs. However, even processing RAW GH1 files in ADC I struggled to get the sort of colours I got from both D700 and E3. Which could just have been my poor technique, of course.
Or it could have come from the CFA characteristic. Did you go as far as developing a custom profile for the camera to get it to your liking? Colour management is a tricky issue, if you have high standards.
When recently looking at the OMD I compared it with the very neat Panny G5, and found the Panny colours not to my liking. But I'm seriously considering the OMD or EPL5. I'm also wondering about the Sony Nex 6, though I'm wary of Sony products. In my (limited) experience, confirmed by my techno-freak son, Sony tends to produce an excellent product but find ways to spoil it.
It really looks like colour management is your problem. selecting cameras whose colour preferences match yours is one way of doing it, and maybe the easiest.
--
Bob
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