Originally posted by beholder3 I do not think uwa is more difficult than any other focal lenght.
Most of the issues people seem to perceive actually are caused by a dogmatic sticking to output in 3:2 format.
Once you learn to overcome this mindblock it is more than easy.
Then foreground is the least of worries.
No reason to use a ultra tall angle on a ultra wide landscape Shot.
Well, I see your point... using a more "square" format would eliminate some "stretching".
I have no preconceptions regarding aspect ratios, however I feel that succesful use of UWAs depends more on angles than on aspect ratios.
In particular, the pitch - it pays to shoot level - and yaw - since the different angle of subjects close to the borders has an impact on their shape.