I've used the search function, scanned the site map, and found nothing that seems to bear on the sizes of Pacemaker Graphics' lens throats. I know that the 2x3s are 48mm square. What size are the 3x4s and 4x5s?

I also didn't find anything on minimum flange-to-film distance or extension, so here's a table copied from GGP.

Minimum Flange-to-Film Distances
For Selected Graphic Cameras
Distance
Size & Model (inches) (mm)

2 1/4 x 3 1/4

Miniature Speed 2 5/16" 58.7 mm
Pacemaker Speed 2 7/16" 61.9 mm
Pacemaker Crown 1 3/8" 34.9 mm
Century 1 3/8" 34.9 mm

3 1/4 x 4 1/4

Anniversary 2 1/2" 63.5 mm
Pacemaker Speed 2 5/8" 66.7 mm
Pacemaker Crown 1 5/8" 41.3 mm

4 x 5

Anniversary 2 9/16" 65.1 mm
Pacemaker Speed 2 5/8" 66.7 mm
Pacemaker Crown 2 1/16" 52.4 mm

From Graphic Graflex Photography, 10th Edition

Cheers,

Dan

<font size=-1>[ This Message was edited by: Dan Fromm on 2006-02-03 06:55 ]</font>

4x5 Side RF Pacemaker lens throat: 2.935 inches wide by 2.940 high, .2 inch rounded corner.

3x4 Anniversary Speed: 2.5 inch diamater round opening.

4x5 Super Speed: 2.9 inch wide, 2.85 high, square corners.

Quote:

On 2006-02-03 18:35, 45PSS wrote: 4x5 Side RF Pacemaker lens throat: 2.935 inches wide by 2.940 high, .2 inch rounded corner. 3x4 Anniversary Speed: 2.5 inch diamater round opening. 4x5 Super Speed: 2.9 inch wide, 2.85 high, square corners.

Thanks! Just what I needed.