I've been a member here for a while now and was looking into upgrading my digital back. I currently have a P45+ with a H2. I use a 100 f2.2, 120 f4 macro, and 50-110 zoom.
I was offered the same price on either an IQ250 or IQ260 H mount upgrade.
I shoot a lot of studio work. This mainly is portraits/headshots, as well as the occasional beauty/fashion shoot. I also do a lot of fine art landscape work that long exposures are a common part of. Samples of my work are on my site for reference.
The P45+ has been my go to back for years. It does an outstanding job in studio and with long exposures, but has several shortcomings. The screen is the largest concern, as I am unable to check focus and exposure accurately when on location and not shooting tethered. This concern means I usually do not shoot the medium format kit when shooting a location fashion shoot, because I fear the reliability of being able to quickly check to make sure everything is working well. It's also an aging back, eats batteries like no other, and is just starting to feel 'old'
Both the 250 and 260 cover the problems I had with the 45+. It's the question of which back would be overall better to use.
So far as my understanding goes with the 250 v 260 is that one is 1.3x crop, 50mp CMOS with high iso usage, and the other is full frame, 60mp CCD without the same high iso usage (similar to my current back)
On paper the 260 looks like a better deal (given I can save some more money with both at the same price) also being a full frame chip, and overall amazing features. I don't like the idea of switching from a 1.1x crop to a smaller chip. However, I know in real world shooting situations it all depends on the shooter, etc.
Which back performs better for long exposures? That's a key feature of upgrading to one of these over an IQ160. I like that I can get clean long exposures at ISO 50-100 with the P45+.
Is it true the IQ250 is only 14 bits, while the IQ260 is still 16 bits?
Asides from wider lenses being wider and having a shallower depth of field, is having the full frame chip really that significantly different when shooting with MF cameras?
Any input would be grateful.
On a side note, I've noticed some people considered the IQ250 an upgrade from the 260. So for those of you who have either one, what made you chose that one over the other, and now that both are out, do you stand by the one you currently have?