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The What's New article lists the price of the original Optima as .95 which is nearly equal to 0 in 2009 dollars.
The original Optima has zone focusing consisting of only three zones shown by icons with two people, three people and a mountain.
Behind the focus ring is the shutter speed selection ring.
The aperture ring is behind that, closest to the camera. You set the shutter speed and aperture by estimation or a separate light meter.
With autofocus, you just point at the subject and the camera focuses automatically. With all of these cameras the photographer views the image through a viewfinder which is not connected to the lens.
The view through this viewfinder or window can hence be slightly different from the image that hits the film.
The shutter is a Compur with continuously variable speeds from 1/30 to 1/250 second. "[A]s the photoelectric cell constantly monitors scene brightness, it feeds current to a mechanical system which alters the position of a cam. is depressed before each shot, it releases tension on a feller arm, thus allowing spring-loaded aperture and shutter-speed controls to move until halted by the cam, thus setting correct exposure and placing a green dot in view-finder to signify sufficient light." The shutter speed stays at 1/250 until the aperture goes to its maximum at f3.9.
When the lever on the left side of the camera body . The shutter speeds then begin to go slower until they get to 1/30 second.
Rangefinder cameras have at least two windows which produce two images.
This section contains over 70 still cameras from A to Z (Agfa to Zeiss Ikon) using 35mm film but not having single lens reflex viewing and focusing. The third way is rangefinder focusing which provides precise focusing.
Often there are two, three or four distance zones often represented by icons to help the user.
This shutter release does go down quite some distance compared to most shutter releases.
I'm guessing that the lever action and shutter release were combined into one button on the Optima I and later models.