Hi,
As a matter of fact, ISO matters. There is something in real life world called wind causing motion in leaves. Sometimes you need to increase ISO to get a decent picture.
Live view is very helpful if you are working with tilts or want to focus of the optical center where MF cameras have their AF.
Perspective doesn't change with camera or lens, it just depends on viewpoint and subject. A simple fact that every photographers should now, but quite a few choose to forget.
Now, the ISO stuff has been taken care of by the new CMOS backs and they also deliver working live view. Great.
It is no sensation that a small camera is smaller than a big camera. But it matters a lot if you go on an airline trip with one bag and 10 kg carry on limit. It is of course different if you are flying a big set up with 50-100 checked in equipment.
I would think that Phase One backs are quite reliable, although I have read about half a dozen or so that have failed. I had my P45+ for two and a half years and never had any issue with it. I must say that I have enjoyed using it and still enjoy using it. But, that doesn't say I would feel it was a very smart move to buy it.
I could have made half a dozen workshops with Hans Kruse in the Dolomites for that money or travel trough the US a couple of times. Spending on travel would give me a lot more great pictures than buying a digital back.
Below is a link to another posting on LuLA, a user who bought an A7rII who bought it as a replacement for a Canon 7D that was whacky but found it replaced all his equipment, mostly:
http://forum.luminous-landscape.com/index.php?topic=106854.msg892420#msg892420The A7rII is interesting for a lot of people as it can be used with almost any lens on the planet. Chris Barret finds that his Hasselblad V-series lenses give him around 20mm of shift on the A7rII, that is a lot for 24x36. Personally, I cannot get more than 12 mm (or so) with my T&S adapter, but I can have my T&S adapter in my pocket.
Chris is also happy that there is no need to shoot LCC with his Hasselblad lenses. I was never in the need of LCC shots, so I cannot comment on how much nuisance that may be.
So, my take is that if a photographer is happy with 40 MP or so the A7rII is worth a look. If T&S is not needed the Canon D5s and the Nikon D810 are fine options and both still have some T&S capability.
If more than 50 MP is needed, high end MFD is the only choice, if you cannot stitch. So, printing really large, MFD is the way to go. But, you need to make best use of it and that can be hard as you are limited by both depth of field and diffraction. Again that applies to every camera on the planet and quite a few in orbit, not MFD specific at all.
Best regards
Erik
If you don't need liveview or high ISO performance...well there's nothing to complain about Besides the new CMOS isn't a good idea if you want to use a lot of camera movements - and small format is a bad idea if you want to use tech cams.
Sure you can get big prints but the size of the print does not give you the same perspective and overall look.
Of course a smaller camera gear is much more portable. But does that 'revelation' really require much notice? I think everyone knows that. We also know that MF is very expensive and that the early 645DF/+ models were a bit unstable needed required new firmware updates. I think it's much like it was in the analog era with small format being the cheaper solution, medium format more expensive and large format extremely expensive (think of the Maxback comissioned by Mitchell Feinberg). Even back then you could produce great and stunning prints from small format negs and it was easier to travel with a 35mm than 120, 4x5 or 8x10 or bigger.
Personally I can live with the weight. I can live with the stability of the PhaseOne system, the bad AF etc. I don't care about that, the MF cameras I was using were all completely manual film cameras without the luxury of liveview or instant replay, screens or whatever - and I was happy with that. I'm glad I don't have to scan my photos and I get files with great quality, high resolution, lots of detail and very pleasing colour - it's better than what I got with 4x5 colour slides or negatives and right now I'm going to sell my 8x10" gear as well because the digital MF files _are_ that good.
I'm wondering: has anyones back ever failed? I mean like really really failed? I only heard from cameras failing but never digital backs themselves...