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1Ds II vs. p25 samples

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There is a clear difference in color cast, other than that I dont see too much difference in detail.
--
Yiannis

'The Northern star, will bring the starry night, but before the sail appears through the pelagos. I ll become wave and fire to embrace you foreign land. And you my lost homeland, a tender stroke and a scar, once the sun rises in another land. Now I fly for my life's celebration. The same old moon and you newly met birds, push the sun and day away from the mountain to see me cross the sky like a lightning. ' Nikos Gatsos
 
and costs 4x as much. :-D The Mamiya ZD back should be the ultimate combo of price and quality. Bye bye Phase One..... just kidding I don't really think they'll go out of business but they will certainly have to lower their prices significantly.
 
actually there's a good discussion (that resulted in these samples) of this on robgalbraith right now. If you look at the 100% crops, especially the guy's sweater, the P25 is smearing a lot of the detail and/or color... it does not look very good. I'm not saying the P25 is inferior, but there may be certain situations where it's not a slam dunk over the 1ds2. I've had a 1ds2 only long enough to do a couple of portrait sessions, but really like what I see so far. I'd be interested to try something like the P25, but cost aside, it doesn't have the versatility I need (for non-studio work). I think the Mamiya ZD (dslr, not the back) should be very interesting to keep any eye on as well. It doesn't have the speed or ISO range to be as good for event work as the 1ds2 on it's own, but those two systems used in combination would pack quite a punch (just as combining 35mm film and 645 film cameras is a great combo for many situations)

I've had that
digifoto226 said:
and costs 4x as much. :-D The Mamiya ZD back should be the
ultimate combo of price and quality. Bye bye Phase One..... just
kidding I don't really think they'll go out of business but they
will certainly have to lower their prices significantly.
Click to expand...
 
One thing I noticed when comparing the crops is that the transition in the shadow on the right side of the man's neck (where the black shirt touches his neck) looks better on the 1Ds II. There appear to be fewer shades captured on the P25 shot. The difference may be due to other factors. He might have moved which would change the appearance of the shadow. The detail in the beard appears better on the P25 but the sweater looks better on the 1D II.
Chris Prinos said:
I've had that
digifoto226 said:
and costs 4x as much. :-D The Mamiya ZD back should be the
ultimate combo of price and quality. Bye bye Phase One..... just
kidding I don't really think they'll go out of business but they
will certainly have to lower their prices significantly.
Click to expand...
Click to expand...
 
Daffy_Duck said:
Chris Prinos said:
I've had that
digifoto226 said:
and costs 4x as much. :-D The Mamiya ZD back should be the
ultimate combo of price and quality. Bye bye Phase One..... just
kidding I don't really think they'll go out of business but they
will certainly have to lower their prices significantly.
Click to expand...
Click to expand...
Click to expand...
--

Check out the top right hand corner of illustration on the right hand page of The Punch Book, considerable moire on the P25 shot compared to the 1Ds MkII.

Slightly prefer the colour of the P25 but that is subjective and I would guess achievable on the 1Ds MkII.

Am still happy with my now two year old original 1Ds which still gives me so much pleasure. Think I will keep it until the next model comes along.

Denboy
 
If like the dslr form factor better than the AFD body + back, and being able to switch in a film back is not important to me, but if you've already got an AFD (or want to get on ZD back for AFD and RZ used) I can see the back being attractive. I used to use a Pentax 645 though even though the other 645's had removable film backs, so I am probably not the right person to ask :)
m3 said:
Interesting. A friend of mine was trying to decide which of the two
and I said "Go for the Camera, not just the back".
He wondered why. "Simple", I replied "You get a new shutter for
about the same money."
What do you reckon?

--
m.
http://www.pbase.com/m3photo
Click to expand...
 
First off, thanks for putting up this test. Well done.

But, what are your opinions of the two. What do you enjoy using more?

I personally am impressed with the quality of the P25. Especially when it comes to the "natural" contrast. I imagine people would call this better dynamic range, but I can emulate these shots The color is a bit on the red bias for my liking though. It seems that the 1DsII likes to go Fuji film-like green.

I'll be picking up a 1DsII in Feb.

Thanks again,

Phil

--
Phil Holland - http://www.phfx.com
 
Hi Phil, it's not my test. I just posted it bacause I thought it was interesting.
The tester's name is Warren Roo. The original thread is here:

http://www.robgalbraith.com/ubbthreads/showflat.php?Cat=&Board=UBB24&Number=293160&page=0&view=collapsed&sb=5&o=&fpart=2
PhilH said:
First off, thanks for putting up this test. Well done.

But, what are your opinions of the two. What do you enjoy using more?

I personally am impressed with the quality of the P25. Especially
when it comes to the "natural" contrast. I imagine people would
call this better dynamic range, but I can emulate these shots The
color is a bit on the red bias for my liking though. It seems that
the 1DsII likes to go Fuji film-like green.

I'll be picking up a 1DsII in Feb.

Thanks again,

Phil

--
Phil Holland - http://www.phfx.com
Click to expand...
 
The 1Ds2 has better dynamic range. Look at the histograms, there's more latitude in the shadows. You need to match color and dynamic range in the two cameras to get a fair feel...

If the wood blocks had the same saturation in color, the P25 isn't reproducing them correctly - the red isn't saturated enough, or the blue is too saturated. The 1Ds2 shows the red band in the collar or hatband (I deleted the images, and forget where it was) but in the P25 you can barely see it.

There's alot of aliasing in the P25, which doesn't have an AA filter I presume? But the 1Ds2 shows almost as much detail, and looks just as good with some sharpening.

The DOF is different in the two cameras, does anyone know what lenses/apertures were used?

I was very surprised at these results! The 1Ds2 did much better than I thought it would.
 
but they're certainly different. On the portriat, the Canon does a better job with the sweater, while the P25 seems to have a little better sharpness up top. Could be lens variations - I suspect that both cameras are very tough on lenses.

Also noted that the P25 is a bit redder in the face than the Canon.

On the other image, I again see superior sharpness in different areas of the image. The Giotto red tip is considerably cleaner on the Canon, but it appears that the DOF on the P25 might be a little tighter, resulting in that part of the picture being "photographically" farther from the focus plane. Hard to say on that issue.

There are some weird color effects on the picture on the right page of the book on the P25.

It appears that the Canon color balance is better on the second image, though its really not fair to say that with certainty, given that I don't know the actual scene.

I suspect that in normal-sized and even large double-page magazine images, both cameras would produce very fine images.
ron purdy said:
http://www.pbase.com/infocusinc/1dsmkii_vs_p25-h1_test
Click to expand...
--
Tom
 
I notice on the tech specs that the ZD back is rated at 1.2 shots per sec while the SLR is rated at 1.5, sort of the opposite to what I might expect.
Chris Prinos said:
m3 said:
Interesting. A friend of mine was trying to decide which of the two
and I said "Go for the Camera, not just the back".
He wondered why. "Simple", I replied "You get a new shutter for
about the same money."
What do you reckon?

--
m.
http://www.pbase.com/m3photo
Click to expand...
Click to expand...
 
A while back, I rented an Imacon Ixpress back for a multi-day product shoot. Of course I didn't have my 1Ds2 back then, so I have no side-by-side comparisons, but I was mildly disappointed that the Ixpress files showed more artifacting than I was expecting, which, for the subject I was shootiing, meant lots of highlight color fringing, a problem I always had with my old Megavision S3, the result of weak anti-aliasing at the sensor (or none). My impression is that this is a common issue with the medium format systems, and something that Canon for one has pretty thoroughly--and effectively--overcome. It's part of why I sold off my Contax 645 gear to pay for the 1Ds2.

--
Tim Wilson
Studio/lab
Chicago
 
Interesting. For me, the P25 has more resolution, but only slight. But the 1Ds Mk II has better shadow detail (suprising). WB is split between the 2 samples - the portrait is much better on the P25, while in the still life the Canon has the edge I think (although exposure and focus point seems different). I can't afford a 1Ds Mk II, let along a P25 though!

But in practice, does it really make a difference. Even a humble 300D can produce a 200dpi print at 15x10". That's probably more than enough for most people.

Excal
 
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