I'm not very tech-smart, started with film years ago, and the tech stuff sometimes eludes me as I have limited background in it.
SO, leads me to this question:
When I capture an image, and crop and enlarge, it loses some degree of detail, or becomes 'fuzzy' after a certain point. But, I'm not sure if it's something I do, or don't do, that loses the detail.
So, wonder if there is a step I'm missing that "compresses the image" into a more "compact" size, and then when we crop and enlarge, we gain some detail in the image "AND KEEP IT" as the compressed image enlarges again. But I think I'm asking this the wrong way, because compressing is not really the term for what I mean.
Not sure I'm explaining this exactly. Most of the time, I can enlarge as much as I want in any image (I shoot RAW with 5DM3 and 7D) ... so the detail is there generally. But, sometimes, even enlarging a half-crop and it looks like half the photons, or whatever creates the dots (pixels) seem to disappear. Not on all shots, just on some - and the shots look similar upon first examination -- only after enlarging does the lack of detail appear.
I always shoot at the largest size image - and get some very clear detail in my images. But it's the process of enlarging that puzzles me -- yes, I can get some large prints (easily 13x19 - or much larger) with perfect clarity, but some crops seem less able to get the size I'd like to see.
One other comment: It appears to me that the faster SS and larger aperture opening creates less detail overall. But, when one compares SS and AV, there exists a relationship between them, obviously, that allows less light and more light to offset the changes in SS or AV ... so, based on that (and skipping push-stops for now) that image should give a similar result in detail. So, I'm a little puzzled with this detail issue.
Any comments? And no, at this time, can't post a photo example, my site is down, and rebuilding.