Asahi Pentax ES Operating Manual Excerpts
MECHANICAL SHUTTER
In addition to the electronic shutter for the automatic exposure control, the ES has a mechanical shutter for speeds 1/60 X for electronic flash synchronization, 1/125, 1/250, 1/500. 1/1000 sec. plus B (Bulb).
To operate at any one of these speeds, just turn the shutter dial from "AUTOMATIC" to the desired speed setting. Now the electric circuit and the TTL meter circuit are off.
Reproduced for Historical and Reference Purposes by Paul M. Provencher
http://whitemetal.com Not For Resale.
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