| Re: Any Sony A300 users here?
As said in a Monty Python sketch . . . 'Say no more'. Bang for buck, a very well rated lens.
F4 will be the widest aperture available at 55mm. F/5.6 will be at 200mm (narrowest aperture) on the lens unless you adjust the camera for greater depth of field (DoF), say F/8.
Basically, at 55mm at f/4, you will have a narrower DoF (more light, faster shutter speed). As you close it down, say f/5.6 or above, a slower shutter speed, but a greater DoF (more in focus). F8 is a mean average. A tripod helps, but if shooting hand-held, f/5.6 works fine. You can compensate by adjusting the exposure value (EV), say by -0.3 to increase shutter speed slightly, though it depends on the available light and the widest aperture of the lens fitted at the time. Many look for the Minolta 50mm f/1.7 prime lens. It's a classic, so you can get a fast shutter speed in low-light conditions, though at f/1.7 the DoF will be VERY narrow (not much in focus).
The lower the f number, the less in focus, but higher shutter speed. The higher the f number (5.6 and above for example), more in focus, but slower shutter speed.
It's a compromise. Another way to adjust is to increase the ISO (sensor sensitivity), but the Sony is probably best at ISO 400 or below. There are many variations, but foremost (IMHO) is to have a good lens with as bigger aperture as possible . . . and again, this will depend on your shooting requirements.
Last edited by Pirate!!; 16-12-2008 at 10:17 PM.
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