I've said this before, but I think the file size negative point is pretty irrelevant as in 'relative terms' both processing and file sizes were longer and larger when we were using the 6MP 7D.
32bit Windows -> 64bit Windows transition. I am so glad that I've made the jump to 64bit. The main reason for not upgrading before was the lack of drivers etc that were available. And the main reason why they were not available was that there was a lack of demand for 64bit. We now have demand. This is not only for Digital Photography, but for High Def Video and others.
For the people who 'master' the majority of photos in Lightroom (i.e. only convert to TIFF or Jpeg for additional processing and/or printing) then personally I see myself switching from RAW to cRAW (if or when I get an A900)
Lenses, I think most people noted that when they switched from their 7D to the A700 it was noticable that their 'not so top glass' let down the body. The point that I think is worth a mention here, is that the same lens attached to the A900 will not look worse than an A700, just it won't get the most out of the 24MP body. I guess what I'm saying is that when upgrading the body to a higher spec, needing better lenses will always be a factor. It didn't put people off upgrading to the A700, so I don't really see it as a major factor 'not to upgrade' to the A900.
I can the advantages of having a second body for sports or wildlife etc, but as I never do any of this and the closet I come is taking the kids to the local zoo. Personally I just want a single workhorse, that will do everything.
The two big pluses for me with the A900 is the larger viewfinder - I find the A700 impossible to autofocus in low(ish) light, and picking up my newly aquired Dynax 7 film camera makes me really want a lovely large bright viewfinder.
The second thing is a decent fast ultra wide angle lens. My Tam11-18 is pretty poor in this department, it's OK but not really that sharp or fast. Not sure about the Sony11-18, but I've read that this is just a rebadged Tam. The Sigma 10-20 isn't much better from what I've read, my Nikon friend (Gary - bristol_bound) has just upgraded his Sigma to the Tokina 11-16 f2.8. The Tokina is supposed to be much better and is 'fast glass', but not available in A Mount.
The same goes for the 17-50 range in fast glass. The only options in f2.8 are the Tamron and Sigma, both of which are not great at f2.8. The CZ16-80 is much sharper, but this isn't f2.8 (3.5-4.5).
I have so many overlaps with my lenses at the moment, I'm just really frustrated. If I'm keeping the A700 I'd want another copy of the CZ16-80 as I miss it's sharpness, but don't want to sell my Tam17-50 for the F2.8 - even knowing it's soft wide open.
The way I see it is that my end goal is:-
1) A Full Frame Body
2) CZ 16-35 f2.8 (the new one)
3) CZ 24-70 f2.8
4) Tamron/Sigma/Sony/Minolta 70-200 f2.8 (or even the Sony 70-300G)
(And maybe a few other primes for specific purposes)
Yes, yes, yes, I know this is a huge expense, but it does have an end point (and don't have to get there on one go). At the moment I feel like I've just swapping lenses everytime something a bit better comes out in APS-C land. And as I see myself going FF at some point, investing in APS-C seems a waist of money.
And don't get me started about Sony flashes. This is a really good reason for switching to Canon or Nikon.
- What's the score with using the Minolta 5600HSD on top of the camera?
- Does this work on TTL?
- And can the 5600HSD act as the master for other 56's?
Personally I have given up on the Minolta/Sony wireless IR TTL system. It just doesn't work outdoors and radio triggers seem to be a much better option (and running in full manual). It's 'too hard work' to use Sony flashes and radio triggers (mainly due to lack of FS-1200 adapters), so I plan to sell one of my Sony flashes soon and switch to either an old Nikon or Canon flash with a standard hotshoe.
I'm not thinking of upgrading for a while, the A700 is fine at the moment and the A900 without an ultra wide angle is a non starter for me. Personally I'm waiting for the CZ16-35 which I think will be available in the New Year. And maybe this time next year might be when I upgrade.