best ways to nail sharpness and exposure.
Sorry for the high jack Steve....
Exposure always seams a little under exposed, I normaly add a little exposure comp. what the best way to work out what you need to add?
Seams a little noisy, this is worse if under exposed.
Focus. I use mainly single shot, single point in Av but it can be a bit and miss. my subject is my 2 year old daughter and she is always on the go so its hard to get sharp focus on the eyes. Shutter speed I try and keep up 250/sec+ on my tamron 50mm at around F4.
I have tried taking pics of fast moving objects like birds and MX bikes jumping but these are not very often sharp, I think it more me then the 50d.
What setting should I be using for this type of photo?
Noise is only really an issue for under exposure. The 50d has excellent high ISO, see my posts in this thread;
http://www.talkphotography.co.uk/forums/showthread.php?t=348209
Also how you process can massively effect noise. I use Canon's DPP for high iso images which is far cleaner than Photoshop/Lightroom.
If you think its under exposing, slide the comp up until you are happy with it. I've set mine up so the rear wheel adjusts the exposure comp so I simply tweak my thumb and its done!
I'm not surprised you miss the focus on your daughter when shes up and bouncing around with 'one shot', youre using the wrong setting. ANYTHING moving, I use AI Servo and it never misses a beat, and this includes shooting F1 cars at full chat. Focusing on the eyes well thats a technique issue I'm afraid, and I say this as its the same with nailing any small point of interest, any subject or camera movement will throw it out. I normally hold my breath when focusing on the eyes, but for this, use one shot focus. Its a hit and miss thing with any body, keep shooting until you get the shot.
As for the fast moving subjects, it depends what you want to achieve. AI servo focus certainly. For freezing the action, AI Servo, AV mode with high ISO. For panning, TV mode with whatever speed you feel you need and AI Servo.
Only use a single focus point for a moving subject otherwise you risk the focus locking onto the background.
Do you shoot raw or jpeg?
If you shoot raw, processing is as important as the shoot itself.
What software do you use?
I have to say, sharpness and exposure are the very basics and this is totally independent of the body, any techniques used to nail exposure and sharpness are universal, whatever the body?