[BiGJoN]

For testing proportions is it good to look at a horizontal/vertical flip of it?

ie look at the picture from the wrong side of the paper held up to a light? Cause this is how I test. Is this good or not?


It kinda makes sure that an image will look good when its flipped.

[strata]

it's a technique I've heard suggested a plethora of times... by looking at the image when it's mirrored gives you a sort of fresh look of it which makes you notice details and imperfections that your eye wouldn't see otherwise since you've been staring at it for so long...

why don't you just try and see what it does for you?

[Muzman]

it's to do with brain hemisphere bias, I believe (the horizontal flip that is). Dunno about the vertical one, since your own horizon never shifts. Couldn't hurt though.
I've also noticed that rotating things 90 degrees helps shake up the perspective now and then. But this is probably because I don't do stuff outside the computer much.

[Norling]

If you draw a portraiot from a photo, you can trun the photo and the drawing upside-down sometimes to compare the forms. It works.