100% zoom in iPhoto
I'm new to digital photography and have just about got my head round what a 100% crop is, and its value.
The thing is, I'm not sure I'm managing to do it in iPhoto.
The nearest I can find is the command to "Zoom in 100 percent on specific area of photo" - but that's not the same as zooming in to 100% crop, is it? Or is it?!
On a 4608 x 2592 photo, viewed on a 2560 x 1440 screen the above command produces a picture which about 6 times the size of the display.
So I'm really confused!
Any help much appreciated.