Hi Dieter, If you do a little search on the web, you'll probably find all the information that you need ahead of time. One place to start of course if Google. If you type something like "Colorado Commercial Photo Lab" you'll get probably too much information. So you may try to type the City name, instead of the State where you expect to be.
Anither place to get info. is ACE on the web. They have a commercial labs sorted out by states at http://www.acecam.com/lsb4ndex.html Then of course, you can check locally on the yellow (commercial) pages of the phone book. Overall, you shouldn't have too much difficulty finding a place that will do that for you. What may be the problem is that outside of major cities, the labs won't do it in 2 hrs but overnight. Next best thing, of course, is to use Type 55 polaroid film with your 4x5. You get to check your exposure on the spot and you get a positive and a negative. Then you can shoot with confidence in the same area with anything that is in your 4x5 holders or with your SLR or Zero camera (provided that you know how to link exposure between the 3 cameras). Good luck, Guy > > > Dieter Bublitz wrote: > > > > Hi folks, > > this may be somewhat off topic but I hope not too far :-). > > I will be on a trip through Colorado, Wyoming, Montana and South > > Dakota in May and June. > > While I will take photos mainly with my SLR-equipment, I plan to take > > one pinhole camera on this trip. Did not decide yet, wether it will be > > a 4x5" or one of my medium format Zero's. >