Well, as far as the noise goes, I'm not really seeing any...at least not at this size. Either way if it's something you feel very strongly about, I'd recommend Noise Ninja...it does a wonderful job.
Now as to the sharpness issues, I'm not really sure there's much that can be done with that first shot. The focus was simply in the wrong spot...if you look at the child's shirt towards the bottom of the image, you can see it's actually sharper than the child's face. This is the problem with such a limited DOF in that you have to choose you focus point very carefully...and with a child on a swing, that's very difficult.
Unfortunately these shots are in pretty bad shape because of the focus (granted the #1 is much worse than #2) so I wouldn't bother putting too much effort into them. That said, because it is what I would consider a "precious moment" I do think I'd print them as 4x6's as they are. With the smaller print size, the focus issues aren't going to be "as" evident and you'll still have the memories regardless. While I have MANY great shots which I have framed around the house, some of my personal favorite shots are some of the "technically poor" shots I'd done years before...shots of our first dog for example who passed away 6 years ago. I really didn't know much about "critter photography" back then so some of my old pictures are pretty crappy, but I still love those shots dearly just because they're pictures of Mirage. Memory photos don't always have to be technically perfect to be great pictures
.
Just my $.02 worth,
Jim
"It is horrifying that we have to fight our own government to save the environment. " - Ansel Adams
Walczak Photography - www.walczakphoto.izfree.com
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