More on RBT S1

[P3D Dr. George A. Themelis <fj834@xxxxxxxxxxxxxxxxxxxxx>]

By now I have figured out how the camera works and have finished my first 
roll.  I am really happy that the camera can be used from fully automatic 
to fully manual mode in both exposure and focusing.  

The program mode works just like the system that I follow in my Realist:  
With 100 ASA film my starting point is the sunny day rule f16 at 1/100.  
If I need more exposure I start shifting down (open) the aperture to f11 
and f8.  From there I start shifting down the shutter speed to 1/50 and 
1/25.  After that, I might use f5.6 or it is tripod-time with speeds under 
1/25.  The RBT S1 in Program mode lets you set a standard aperture (f8 in 
this case) and the minimum hand held speed (1/25 in this case).   The 
program will try and maintain f8 at higher than 1/25 speeds.  If it 
reaches the maximum speed it will switch to smaller apertures (f11, etc.)  
If it reaches the minimum speed it will switch to larger apertures and 
then lower speeds.  

In Automatic (shutter priority) mode you set the aperture and the camera 
selects the shutter speed with a warning when this falls below the (user-
adjustable) minimum hand-held speed.  In Manual mode the use sets both 
aperture and speed.  The camera indicates when the selection agrees with 
the measured light and shows over/under exposure situations.

The camera will normally work in autofocusing mode, which for many 
subjects works well.  You can "convince" the camera to focus at a desired 
distance by pointing it at this distance and freezing it, or you can force 
it to focus anywhere you want by switching to manual focus and dialing the 
desired distance.

Aperture changes are via a dial at the top while shutter speed and manual 
focusing changes are done with up and down buttons.

Will post more when I get my first film(s) processed.  -- George Themelis


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