As you've probably gathered, I'm rather pleased with myself for settling on the 24-70 despite the few hundred extra grams over the 24-105. Should be reasonably well balanced with your 30D. A battery grip will move the centre of gravity even further toward you which may further improve the balance (adds further to the weight though) but you may find it's not necessary.
If you decide to go new, recommend you pm The Oracle (check the MO forum) - he gave me a good price on a new warrantied set and can order in items like the grip & other lenses if you can hold on for a week or two. :thumbsup:
Benjymocha - I don't want to take over your thread but given you're giving serious consideration to spending a horrendous amount of cash thought I'd throw a couple on here. I make no apologies for the composition etc, just wanted to illustrate the level of sharpness and colour that I got with zero effort and little post processing - conversion from RAW (with Canon software) and resizing (with Canon software). No USM applied, no colour fiddles. PM me if you are interested in other samples - happy to oblige.
All with 350D, 24-70L and battery grip for balance
Not great lighting (taken this morning) but illustrates a point
1/200
f 4.5 ap priority
70mm
ISO 200
100% Centre crop
If you look carefully you should be able to see a table lamp reflected in her eye with the bulb switched on in the middle. Didn't spot this till I cropped. (She was playing the game we like to call on...off...on...off...on...off which is in no way annoying at all :mad2: )
For a quick example of colour (taken last Sunday in Bot Gdn),
1/800 ap priority
f5.0
50mm
I went for the 24-70 (thanks to The Oracle that I managed to get it in time for my trip! got it less than 24 hrs before I flew off. :bsmilie: )
I've just returned and so far, i've nothing to complain about it! :thumbsup: (maybe except for the hole in my pocket.) Made all the difference during the event.
Is that an issue? Is it more of a photographer problem or lens problem?
I use my Sigma 18-50 F2.8 lens for various events, prize presentations, I've never missed a shot so far. Events that I've shot with that lens: Clubbing events, prize presentations, stunt competitions, bar-tending/flaring competitions, etc etc.. Mind you, I'm not shooting for fun, but for work (various publications and media).
And no, the Sigma 18-50 f2.8 does NOT have USM or HSM.