Buying EOS 550D. Help Needed.


Perhaps I never made myself clear. The 50mm F1.8 can deliver 'decent' images in low light but its definitely no where near "perfect focus" when you view at 100%
This is probably caused by the precision of the AF motor used. It probably cannot make fine movements without overshooting the intended focus plane.
In such circumstances I make it a habit to tip the shutter twice in order to force a re-focus of the lens. Sometimes nothing happens, sometimes the lens refocuses a bit and the picture is sharp. Alternatively you could also use continuous focus mode, but that depends on your object, the used AF sensor and any "focus / recompose" you might want to use.
 

no more story liao? interesting thread leh... hehe
 

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