Ollinger's Guide to Photographic Enlargers: Elwood Enlargers
Ollinger's Guide to Enlargers

Elwood Enlargers

Introduction

Elwood Pattern Works made a number of enlargers; a few are small but their bread-and-butter was large-format (5x7 and up).


Quick Comparison

Model Country Era Format

Baseboard (inches)

Head Focusing Autofocus Column Ref Notes
AM-3 Miniature USA Late 1940s 2-¼ x 3-¼" n/a Reflector Rack & pinion No Single post 1  
BM MIniature USA Late 1940s 1-7/8 x 2-¼" n/a Single condenser Helical No Single post 1  
S2 Studio USA Late 1940s 5x7 n/a Reflector Rack & pinion No Single post 1  
SP-2 Special USA Late 1940s 5x7 n/a Double Condenser Rack & pinion No Single post 1  
5x7 Autofocus USA Late 1940s 5x7 n/a Reflector Bellows Yes Curved column 1  
C-2 Commercial USA Late 1940s 8x10 n/a Reflector Rack & pinion No Curved column 1  
8x10 Autofocus USA Late 1940s 8x10 n/a Reflector Bellows Yes Curved column 1  
Mapping Enlarger USA Late 1940s 8x10 n/a Reflector Bellows Yes Curved column 1  

Elwood ad (1970)Key

Era: It's nearly impossible to get actual production year spans; I've provided this simply to give an idea of when an enlarger was in production.

Focusing:

Autofocus: not to be confused with what we think of as autofocus today; these enlargers don't focus themselves. What they do is offer a sort of tracking control so that once the image is focused, it stays in focus as you change the elevation of the head for cropping.

Column: all columns are assumed to be vertical unless oblique is noted. Oblique columns (i.e. angled forward) are nice at higher head elevations because the image won't expand back across the column post when the head is at the top of the post. On smaller enlargers this wouldn't be a problem, but at larger magnifications (and with lenses with shorter focal lengths), this can become a concern.

References

  1. Modern Photography magazine, December 1949