Alpha 200 – great for higher ISO shooting
UNLIKE the Alpha 100, the 200 has ‘improved light gathering ability’ according
to Sony. There is more to the enhancement than just a change of in-camera
processing. We think they may have improved the microlenses on the sensor.
The top photograph was taken hand-held, at night, at ISO 3200.
An exposure of 1/125th at ƒ2.8 was possible by sodium street lights.
The focus with the 50mm ƒ1.4 is better than with our Alpha 700 under
similar conditions but it still back-focuses a touch into the shop win-
dows, rather than hitting the masonry and window frames as aimed.
Above, ISO 400 is almost as good as ISO 100 for macro and
close-up work. Here, the 100mm ƒ2.8 AF Macro lens was used
at ƒ8 hand-held for a 1:1 close up later closely cropped.
Right, the improved SSS allowed a 0.4 second hand held exposure
with the CZ 16-80mm at 16mm and ƒ8 (a good aperture to ensure dead
sharp branches right into the corners). ISO 400 gave very clean results
with high sharpness and little visible noise even in the blue sky area.
7 photoworld
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