What is 100% crop

[JZaun]

I keep reading about 100% crop.. Can someone please explain. I can't figure what that is. Maybe a dumb question but I sure would like to know, maybe it would help me make sense of some explinations that just went over my head. It seems to me that a 50% crop would be half the original pic size so a 100% would leave nothing :D Ok teach me!!


Thanks a bunch

JZaun

[CyberDyneSystems]

The full sized images if veiwed on your screen at 3000 X 2500 or so pixels would be far too large to fit on your screen.

Therefore all the images we post to the web are dramatically reduced to a fraction of there original size.. they are perhaps "20%" in size.

A 100% crop is a small section of one of these full scale images that has been cut out of the original.. but left at 100% scale. It is only with a 100% image that you can truly see a given photos level of detail or image quality. So whenever a review of hardware is being done.. inevitably there is a "100% crop" involved.

:)

[JZaun]

CDS
Now I am really lost. Are you saying that a 100% crop has no set dimensions but is at the original scale ( dpi per inch). It can be 808X500 or 100X100??
:?

JZaun

[Scottes]

Yes. Basically develop your RAW, or grab a JPG. Crop a section out, and post it without re-szing. That's a 100% crop.

Sized for web, processed, sharpened, etc:

http://www.itsanadventure.com/postimages/geeseportrait.jpg

And here's an untouched 100% crop from the "original" TIFF:

http://www.itsanadventure.com/postimages/gooseheadraw.jpg

100% crops are generally used to let someone see *exactly* what the camera captured - at least without resize or sharpening, etc. Of course, posting a 3072 x 2048 image is crazy, so you post a 100% crop. It can be any size, as long as it hasn't been resized.

[JZaun]

Thanks guys
Now I understand what it means it helps understand some post better!! :D

JZaun