I'm thinking of maybe stepping up a little from the 7D. I do like this camera, but I'm finding issues with landscapes in particular. Anyone seen muddy looking trees in landscapes? Every shot of a landscape/mountains the trees are just terrible. Sometimes happens with background to. I'm also a bit letdown at the amount of noise even at low ISO. What would be something in the $400-$600 range used(body only) that you might recommend? I tend to prefer primes, so I was even thinking of going with an older Full Frame again. But, I'd end up losing my Sigma 17-50mm if I did that. I mainly shoot watches for work with extension tubes with the 50mm STM and family/kids and nature/landscapes up here in the North Georgia mountains.