How did you get to 1600mm? Was he not using a 100mm for 35mm format? A 400mm focal length should do the trick and fill the 4x5 frame. Regards Ralph W. Lambrecht On 10/30/04 12:42 AM, "Jim Brick" <jim@xxxxxxxxx> wrote: > At 12:21 PM 10/29/2004, DarkroomMagic wrote: > > >> This will change the perspective, and I understood that he wanted to keep >> that. > > > Correct. You would have to use approximately a 1600mm lens and shoot > alongside the 35mm camera to fill the 4x5 frame with the same image that > fills the 35mm frame, and keep the same perspective. And you still lose ~ > four stops of DOF. > > Depending upon the subject matter, the number and type of focus planes, > swings and tilts can gain back some of the lost DOF. But one should never > forget that if you use a swing or tilt to gain DOF in one direction (x > axis,) you lose the same amount in the perpendicular direction (y axis.) > > There's no free lunch! > > :-) > > Jim > > ============================================================================== > =============================== > To unsubscribe from this list, go to www.freelists.org and logon to your > account (the same e-mail address and password you set-up when you subscribed,) > and unsubscribe from there. ============================================================================================================= To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.