Hi
I came from an IQ180 and "downgraded" to an IQ260 over the summer.
Here apart from the WIfi feature were my reasons
- longer exposures, files in long exposure mode do look better on the 260 starting from 10 seconds and longer
- though I got the 50 ,32 and 23 HR extreme shifting to the lenses respective limits still works better on the 260, as a result stiched images are more easily blended together as compared to my 180
- sensor size, this has not been discussed earlier but the ever so lightly increase in sensor size on the 260 does actually make a difference . In tight wide angle shots it really shows having that extra bit of sensor which can result in several inches of shown in your photograph. I compared both backs in this regard and that was a welcome surprise
On the downside apart from the obvious smaller megapixel count I would rate 2 issues
-moire : I can confirm RVBs statement that the 260 exhibits moire more easily than the 180/280 ,which almost never showed moire
- the absolute cleanest files I have seen where from the 180 shot with 35ISO , better than the 260 at 50. Again it's a close call but nevertheless.
As many already pointed out if file size is pivotal and you don't need exposures over 10 seconds the 280 is the way to go.
If you are invested in wide angle Schneider glass don't even think about going that route .
I had to sell my 28 and 43 XL that over time were replaced with a 32 and 23 HR, a costly upgrade from P65 to IQ180 turned even more costly with the upgrade in my lens pool
Grischa
I came from an IQ180 and "downgraded" to an IQ260 over the summer.
Here apart from the WIfi feature were my reasons
- longer exposures, files in long exposure mode do look better on the 260 starting from 10 seconds and longer
- though I got the 50 ,32 and 23 HR extreme shifting to the lenses respective limits still works better on the 260, as a result stiched images are more easily blended together as compared to my 180
- sensor size, this has not been discussed earlier but the ever so lightly increase in sensor size on the 260 does actually make a difference . In tight wide angle shots it really shows having that extra bit of sensor which can result in several inches of shown in your photograph. I compared both backs in this regard and that was a welcome surprise
On the downside apart from the obvious smaller megapixel count I would rate 2 issues
-moire : I can confirm RVBs statement that the 260 exhibits moire more easily than the 180/280 ,which almost never showed moire
- the absolute cleanest files I have seen where from the 180 shot with 35ISO , better than the 260 at 50. Again it's a close call but nevertheless.
As many already pointed out if file size is pivotal and you don't need exposures over 10 seconds the 280 is the way to go.
If you are invested in wide angle Schneider glass don't even think about going that route .
I had to sell my 28 and 43 XL that over time were replaced with a 32 and 23 HR, a costly upgrade from P65 to IQ180 turned even more costly with the upgrade in my lens pool
Grischa