I have noticed that the sharpness problem I have with my 645n is only present in the winter time. It is possible that the cold make the film more brittle so that it don't stay flat. However, we are not talking very cold temperatures here; only a few degrees (celcius) minus. Have anyone else had problem with medium format and cold? Anyhow, I do believe a camera should be usable in cold weather. Pål - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
