I recently bought a Wollensak 15" f/5.6 Telephoto Lens. My question is:
Is this lens too big to properly focus in a Pacemaker Speed Graphic? It is mounted on a Pacemaker style lensboard and its heavy.

I have the graflex tele-optar 15" 5.6 and it does a good job on my 4/5 speed graphic. Just stretch out the bellows and shoot. one word of caution. It can tip over the tripod and camera.

In all of the Graphic Graflex Photography books, the 15" teleoptar is the longest lens they list for Crowns and Speed graphics, and I believe was designed for the Graphic cameras. But for some reason, they made masks for the optical finder up to 20", infact there are two masks "beyond" what would have been used for the 15" lens. So I suppose the 20" B&L tele that was really a military lens might work (just don't expect focusing closer than 15 feet)

I've used a 15 inch Tele Xenar on my Anniversary Speed Graphic by dropping the bed, taking the bellows off the track and reattaching them to the front of the rails after putting the bed back up into a normal position.