I'm starting to experiment with PhotoMerge to simulate a wider angle lens than I have available.
Right now I know I need to use manual exposure and to provide sufficient overlap between the images. I also know that Photoshop CS4 can't address more than 2GB of memory so merging anything more than half a dozen shots is a performance nightmare. And I know it can't handle dark sections very well
I'm going down this path because of my experimentation with zone plate/sieve photography where wide angle lens are just not available. I get to shoot at 42mm and that's it, I cannot go wider.
What pitfalls am I likely to run into and more importantly, are there work arounds? In particular, if the shot could be taken with a wide angle lens, would it me markedly better or worse than the same shot created by a PhotoMerge taken with a less wide lens? The Brenizer Method suggests that a photostitch image is just as good as one with a wide angle lens, and indeed, if you want a shallow depth of field, it is the only way to get the shot.