Archived posting to the Leica Users Group, 2003/11/17
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]If you are using a press type of LF camera, you have more limited bellows extension than many field or monorail camera. A solution is to use a telephoto design long lens, which only requires an extension of the bellows at infinity of 2/3 the focal length of the lens. Example: a 300mm Fuji Telephoto has a distance from film plane to the front lensboard ( about the ceneter of the lens and the place the rays all converge) of 200 mm. If you use the Fuji C lens the extension would be 300mm. The first thing to do is to measure the distance from the film plane to the front lensboard with the bellows racked out. That will tell you a lot. Remember that as you focus on objects closer than infinity, you require more bellows. So a 300mm bellows camera can focus on infinity with a 300mm lens, but will not focus on an obect say 20 feet away. Frank Filippone red735i@earthlink.net - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html