I'll probably be getting myself a 8x10 Wista by next week, along with a good tripod, some film holders, darkcloth etc. However, a light meter is not included in the package. Now I've read that one could technically use a dSLR's light meter instead to adjust the exposure settings for your view camera. As I'm new to film photography (35mm, MF, LF or otherwise) and haven't familiarized myself with darkroom work and the Zone System in practice, I'd like to know how this can and should be done, and what are the advantages and disadvantages compared to the use of a spot meter. Thanks upfront.