Quote Originally Posted by Sheiky
So if I understand correctly: A high-quality point and shoot would mean too much loss of IQ? Even if it has RAW-capabilities?

I'd be ok with the IQ of a good P&S - an S90 is something else I'm considering for real portability. But a good shot is about more than just IQ. One of the main drivers for my switch to a dSLR in the first place was shot speed - a combination of AF speed and shutter lag, both of which are long even on a good P&S. I missed way too many shots of my little one between the time she started actually moving around and me getting a dSLR, due to slow AF on a P&S. Still, I do see a benefit to a P&S where I wouldn't otherwise bring a camera at all - I can always find room in a pocket (or my wife's purse []).


Quote Originally Posted by Sheiky
Why do you want to save in size? You're obviously doing it purely so you think you will be more stealthy...

Not at all. When I'm using the lens, it can be arm-length and white - that's fine. This is purely about fitting in a small bag, while minimizing the IQ penalty. I don't mind the weight (I've got good arm strength thanks to regularly carrying a 22 pound/10 kg weight - my daughter!), but I want to minimize the bulk. The 'ultimate' in convenience would be something like the EF-S 18-200mm f/3.5-5.6 IS - but that has consequences on build and image quality that are too much of a compromise for me. However, the 70-300mm DO and either the 17-55mm or the 24-105mm would both fit (along with the gripped 7D) in something relatively compact, like the Lowepro Toploader Pro 75 AW. That, with a 430EX II in the outside pocket, and I'm good for most shooting situations with something that's about the size of a shoebox, is easy to carry over a shoulder along with my toddler, fits behind the driver's seat of the car, etc.


Quote Originally Posted by Sheiky
Your decision has a solid base I think. So if it's all worth it for you...

Thanks - I think it will be worth it. But, that's one reason that for lenses I'm not positive are right for me, I get them used and at a good enough bargain that I'll be able to sell them down the line without a significant loss (and as I've mentioned, in a couple of cases already, with a gain). Given the relative lack of popularity with this lens, I may have to sit on it for a while if it turns out I don't use it - but that's ok. Worst case scenario, I'll take a loss about equal to the amount I'd pay to rent it for 4 days from lensrantals.com (~US$55) - that would mean selling it for 40% less than retail, which won't be difficult. Not that I'm trying to be pessimistic - however, I think it's always good to anticipate success, but plan for failure.


Thanks everyone for the input and helpful opinions!