Hi People,
I prefer using spot focusing to control where the focus of the shot would be.
However, I understand from a photographer that if you use the center focus point all the time, it would spoil the sensor at that point.
Is there any truth to this?
Hi People,
I prefer using spot focusing to control where the focus of the shot would be.
However, I understand from a photographer that if you use the center focus point all the time, it would spoil the sensor at that point.
Is there any truth to this?
i always thought it was the lens that was doing the focussing, not the sensor...
The photographer that told me this uses a film slr for 30 years. Maybe it has to do with film SLRs. Or maybe I misunderstood him to be the lens instead?
However, I understand from a photographer that if you use the center focus point all the time, it would spoil the sensor at that point.
Is there any truth to this?
Oh come on... Everybody have their own bad experience which cause them to think it's the truth.
Myth debunk for all newbies.
And where shall the lens get the focus command from? The lens has no sensors in the line of light, the picture is only focused on the focal plane. The mirror reflects a portion of light to the AF sensors, which are in the same optical position as the focal plane, but at the bottom of the mirror chamber. Based on that and some computation the camera gives the focus command to the lens, something like "turn AF system 2.8 degrees left". In Single AF mode that's all what happens, no further verification is done. Only in AF Servo (Continuous AF) the cycle starts again.