Fergulmcc From Ireland, joined Oct 2004, 1916 posts, RR: 54 Reply 11, posted (6 years 4 months 3 weeks 4 days 21 hours ago) and read 1932 times:
Be very carefull with Sigma DG lenses on the 5D or the 1Ds or any full frame sensors, i.e. sensors bigger than APS-C as they will cause vignetting, (light fall off on the corners) as they are designed for the smaller sensors. Buy a 30D and invest in some good glass.
Garry From United Kingdom, joined Feb 2006, 183 posts, RR: 3 Reply 13, posted (6 years 4 months 3 weeks 4 days 15 hours ago) and read 1860 times:
LIPH, I have both and if its mainly aviation photography you will use it for then get the 30 with an L lens (70-200f2.8 or the 300f4). Money invested in some top quality lenses is a good investment - compare the price of a top LISUSM lens today to say 2 years ago, and then compare the price of a 300D when first released to a 350 today.
If your photography extends beyond aviation and say action photography (perhaps landscape, portrait, weddings, macro) then get the 5D.
However, if you do buy the 5D make sure you can put some quality L glass on the front of it. The results will be superb but your bank balance will take a large hit!