Ed Hurst
Well-known member
Hello all,
I am about to embark on a pretty ambitious task - creating a large panoramic file using about 24 files from my 40 megapixel 645D. I have a Mac Pro with 16gb of RAM and am about to install Photoshop CS5 so that I can use 64-bit processing's ability to allocate most of the RAM to Photoshop for the task. I can't test thins yet - because I don't yet have the software. But I know my current set up with CS3 (with its associated RAM limitations) won't even come close to performing the task. Just for giggles, I tried a few things in CS3 to do a quick preview of how the full file will look. I created smaller JPG versions of the files; I stitched pairs of files together, then joined those files together; etc.. All of this had problems - the smaller JPGs would not stitch together unless they were very small indeed! Stitching in pairs created very odd perspective artefacts that were hard to fix later (I am assuming that stitching all of the files at once will not have this problem, but maybe I am wrong about that...).
Anyway, I have decided to try and use CS5 (with 15gb of RAM) to stitch all of the files together at once, hopefully as 16-bit TIFFs. This is asking a lot, of course. So my question is - how much RAM do you think I will need to do such a thing (joining 24 40MP 16-bit TIFF files together as one operation)? Will 15 be enough or am I, as I suspect, not even close? I could get even more RAM of course, but not sure if such a thing is needed. And will joining all files together at once create a different (and better) perspective result than joining files together in pairs and doing it progressively?
Many thanks!
Ed
I am about to embark on a pretty ambitious task - creating a large panoramic file using about 24 files from my 40 megapixel 645D. I have a Mac Pro with 16gb of RAM and am about to install Photoshop CS5 so that I can use 64-bit processing's ability to allocate most of the RAM to Photoshop for the task. I can't test thins yet - because I don't yet have the software. But I know my current set up with CS3 (with its associated RAM limitations) won't even come close to performing the task. Just for giggles, I tried a few things in CS3 to do a quick preview of how the full file will look. I created smaller JPG versions of the files; I stitched pairs of files together, then joined those files together; etc.. All of this had problems - the smaller JPGs would not stitch together unless they were very small indeed! Stitching in pairs created very odd perspective artefacts that were hard to fix later (I am assuming that stitching all of the files at once will not have this problem, but maybe I am wrong about that...).
Anyway, I have decided to try and use CS5 (with 15gb of RAM) to stitch all of the files together at once, hopefully as 16-bit TIFFs. This is asking a lot, of course. So my question is - how much RAM do you think I will need to do such a thing (joining 24 40MP 16-bit TIFF files together as one operation)? Will 15 be enough or am I, as I suspect, not even close? I could get even more RAM of course, but not sure if such a thing is needed. And will joining all files together at once create a different (and better) perspective result than joining files together in pairs and doing it progressively?
Many thanks!
Ed