I have recently bought Macro lens(Tamron 90mm) and been experimenting with it, My camera is Canon EOS 1000D and it has only 2.5" LCD screen.
Immediately after taking the picture, How can one check whether interested area is in sharp focus (especially if you have shallow DOF and photographing bugs eyes, petal edges , pollen etc.?
I have seen people zooming in and check for sharpness, How much zoom-in can approximately tell that particular area is in focus? If we zoom in 100% naturally everything is going to look almost pixellated?
Objective of question is, What usually photographers do to quickly check whether image has come up sharp or not?