Ilex

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Ilex Manufacturing Co. was one of America's three main suppliers of lenses for view cameras. It was founded in 1910 by the former Bausch & Lomb shutter designers Rudolph Klein and Theodor Brueck. They invented a delay mechanism that made shutters working independently from climate conditions. Their lens brand was Paragon.

Contents

Shutters

Many of the Universal shutters have the speeds T, B, 1/100, 1/50, 1/25, 1/10, 1/5, 1/2, and 1 sec. Most ACME shutters have additional 1/150 sec.

Ilex press shutters

Press shutters are everset leaf shutters. When a "Synchro" variant exists the other variant is unsynchronized.

  • Ilex Universal
  • Ilex General
  • No. 1 Universal
  • No. 2 ACME
  • No. 3 ACME Synchro

Precision press shutter with extra lever for setting shutter delay for individual flash synchronization with different types of flashbulbs or flashguns

  • No. 4 Universal
  • No. 4 ACME
  • No. 4 ACME Synchro
  • No. 5 Universal

with speed only up to 1/50 sec.

  • No. 5 Universal Synchro

with speed only up to 1/50 sec. and with switch for M, X or nor flash sync

electric shutters

  • No. OO Universal Electronic

with mechanical speed setting (three speeds plus T and B)

  • No. 1 Synchro Electronic

with electric shutter speed control

others

  • Ilex Precise (in Argus cameras)
  • Ilex General
  • Graflex Speedioscope


Lenses

  • nuArc 8 1/4" f 5.6 Widefield Process Paragon
  • Oscillo Paragon f1.9 3-inch (80mm)
  • Oscillo Paragon f1.3 3-inch (80mm)
  • Paragon Anastigmat f4.5 3 1/2"
  • Paragon Anastigmat f4.5 E.F. 6 1/2" (also with label: f4.5 163mm)
  • Paragon Anastigmat f4.5 E.F. 8 1/2-in[1]
  • Paragon Anastigmat, f4.5, 12 inch (305mm)
  • Paragon Anastigmat, f4.5, Serie A focus, 12 inch
  • Paragon Telephoto f6.3/9-in [2]

Notes

  1. Example from Vidar Hagen
  2. with a 58mm screw mount in the sample illustrated

Links

photography related industry in Rochester (New York)
American Camera | Bausch & Lomb | Blair | Century | Crown Optical Co. | Elgeet | Folmer & Schwing | Gassner and Marx | Graflex | Gundlach | Ilex | JML | Kodak | Milburn | Monroe | PMC | Ray | Reichenbach, Morey and Will | Rochester Camera and Supply Co. | Rochester Optical Co. | Seneca | Sunart | Walker | Webster Industries | Wollensak
and in Rochester (Minnesota)
Conley
external links
graflex.org - Rudolf Kingslake's
"Optical industry in Rochester (N.Y.)"
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