nyker wrote:Which Canon models have you used? I was actually looking for a P&S to use in a digiscoping setup, where an SLR is not very practical.
I think it was the 790 that I really loved - got rid of it and wishing I hadn't - couldn't find another one; not current production.
It's replacement for me is the 1200. The 1200 has a lot of issues - but at 4 oz, it's my #1 candidate for winter 14ers. It will also shoot when nothing else will - like in 5 degrees and 50 mph winds.
Lag is an issue germaine to the variety - some better than others, but most all P&S cameras will far underperform SLRs in this department. Auto-focus issues have not been too bad in reasonably low light with the Canons.
The "better" camera is the SX 110. It has the older Digic III which offers a more lteral rendering than the new Digic IV processor - the latter being a little more painter-like - but you won't see the differences except at very high crop ratios. The SX 110 and it's newer counterparts have long tele lengths (10x - 36-360mm equivalent for the SX 110) which is impressive. We were out at the garden today, and went over to look at a route I retro'd in 97. It was late, but not last light, and with the full zoom I was able to get some great zoomed images where we could see the condition of the hardware 100' off the deck - even on the 3" viewer. The camera also sports full manual mode, and uses a pair of AA batteries - handy because you can sub the lithiums for lighter weight and more shots. Total weight is about 9 oz. It's still compact enough to fit in the hip-belt pocket of the pack for 14ers.
I had a G9 for a while - great camera. Quite a bit heavier. Lots of flexibility and capabilities the others don't have. However, the lens, if I recall, was not great, and really no better if even as good as the SX 110 lens. All of these will demonstrate chromatic aberration and most have a significant degree of barrel distortion at wide angle. That darned 1200 has some serious vignetting in one of the corners - though pretty repairable in PS.
Overall the best camera for the weight that I've used has probably been the SX 110.
You might also look into the micro four-thirds format. If it catches on and they get a better assortment of lenses, it could be a good thing for SLR performance with smaller size and weight.