f2.8 50-135mm

Am I doing something wrong - ISO 100, good speed and aperture but the noise level on images from this lense seems a bit much. Any help would be very welcome - haven't got the hang of the lense yet. I have tried auto, Av and fully manual - maybe it's just me!!!

What noise? I can't see anything other than a very nice portrait!

Lenses don't cause noise, so I'm not sure what you're seeing here. It looks like a very wide aperture, so apart from the point of focus everything else is diffused.

What were the exposure details?

Actually this one is worse!!!!

First one is lovely - nothing at all wrong. Second does look very noisy

difussed? ahhhhhhhhhhhh - just looked at the settings - I thought it was f4 but it was f1.4 - I need to be more careful

not too sure about the focusing on either of them - but I was so disappointed with the quality of the image - thought I must be doing something wrong - just being too quick and not checking - but kids just don't sit still long enough for me!!!

f1.4? Not with the 50-135.

A lens with a maximum aperture of f2.8 can't be at F1.4, neither of them look sharp and I wonder if the second was badly underexposed?

Can you supply all of the EXIF data for the second image. I doubt very much that it was shot at ISO 100 unless you were in a room with almost no light.

I also note that it has had a fairly heavy crop

I have taken the liberty of a minor adjustment in LR3 and although smoother - not massively sharp

Looks like front focussing.

You need to lets us know the exif data as others have said

Looks like its front focussing to me. The hair is in focus on the forehead but the eyes and eyebrows are soft.

Snap lol

gone back to look at the EXIF data - the second image was shot with the 50mm 1.4 lense - ISO 400 - so rubbish due to EVERYTHING going wrong. wish I had slowed down and checked what I was up to - front focussing sounds like I am not managing to focus on the point I thought I was focussing on - just BAD technique - must admit the dark room, new lense and very excitable little girl made life difficult for me. I will take a step back and concentrate on my focussing and trying to get good exposure. Thank you for the help, I was taken aback by the set of rubbish shots as soon as I put my new lense on - as with all new things there is a need to get to know the equipment.