And I've got to say that I really enjoyed using the Canon 5D again. Switching ISO, EV and Apertures on the fly went relatively smoothly. I didn't fumble with switches or settings too often and looking through my set of images after the shoot the exposures look fairly consistent.
|Train at Shantytown.|
Canon 5D and 28-105mm @f8
Why ISO 640? Well, I read somewhere (and heard recently on Scott Bourne's Photofocus podcast), that Canon sensors run smoother in multiples of 160. So rather than setting it at ISO100 - ISO160 is actually more noise-free? Which also means 320 is cleaner than 200, and 640 is cleaner than 400! Go figure.
Anyway, I decided that I wanted to have the versatility of my 28-105mm zoom, rather than switching to my 50mm f1.8 prime for the extra low-light speed - but I was going to have to deal with a little movement blur because of this. Cranked the ISO up to 800 (yeah, I know, it's not a multiple of 160) for a bit more shutter speed, and hoped for the best.
I was actually pretty pleased with the results. Noise is OK at ISO800, and I didn't loose too many due to subject blur. I looked for 'pause points' - moments when the action wasn't to frenetic - and got a pretty decent hit rate.
|Canon 5D with 28-105mm @ f4.5 ISO160|
So after reviewing the images in the evening, and mulling over the day, I decided to take the plunge and get one! Just like the 28-105mm they are very reasonably priced on Trademe - and I found a new one going for half price from a guy who had one bought for him as a present, that he'd never used, because he has 'L' glass!