100% Crop

Just what does it mean when photo caption states 100% crop? How do you know when it's 100%?

Thanks!

If you are in an image edition program and you view the image at 100% or 'actual size'. That is 100% crop.

Generally if you were to upload this for comparison to a website or forum it would be massive as most pictures are a few thousand pixels across. So to show a 100% 'crop', you view it at 100% or actual size and then just crop down the image so its 800px across (for example) and effectively cutting off all that extra image around it so when you upload it or view it on a forum its not 4 screen lengths wide.

You are basically viewing a small portion of the picture.

Hope that made some sense =/

Vladimer wrote in post #11793982
If you are in an image edition program and you view the image at 100% or 'actual size'. That is 100% crop.

Generally if you were to upload this for comparison to a website or forum it would be massive as most pictures are a few thousand pixels across. So to show a 100% 'crop', you view it at 100% or actual size and then just crop down the image so its 800px across (for example) and effectively cutting off all that extra image around it so when you upload it or view it on a forum its not 4 screen lengths wide.

You are basically viewing a small portion of the picture.

Hope that made some sense =/

Sort of. Sounds like something I shouldn't be concerned with as a hobbyist. Thanks.

James Emory wrote in post #11794046
Sort of. Sounds like something I shouldn't be concerned with as a hobbyist. Thanks.

It has meaning only if you want to illustrate a point you are making in a forum - showing something that can best be seen at full image size because down-sizing would alter or conceal it, like noise or sharpness.

I think I understand now. I view my image at 100% and then crop what I want to illustrate from that view and do a "save as" if I want to keep/file it. Am I correct?

100%

tzalman wrote in post #11794294
100%

Thank you!

Yeah, it's not that compicated; when you think of the equivalent viewing term "1:1" as mapping one image pixel to one display pixel to best view qualities like fine detail and noise or the effects of noise reduction and sharpening (on the fine detail), then if you want to display those things on the Web for analysis by others you crop a portion of that view that would fit into your normal viewing screen.