Samanax
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- Jan 1, 2009
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You better do more research before posting misinformation like this. All Canon autofocus lenses use power (Canon puts the autofocus motor in the lens) and IS lenses use even more power (if you're using an IS lens and you press the shutter button halfway to lock focus you hear a faint whiring sound, that sound is the IS gyros working).1. It is nothing to do with a lens, the lens requires no power therefor it isnt the lens...
If you mean use the battery until it's totally dead, then that's fine. But if you mean just let the battery sit around until it's dead, that's not so good. You really should never store a fully charged battery for too long or you'll reduce it's performance. It's okay to store fully drained batteries but if you a fully charged battery it's better to use it.2. Have you ever let your battery drain? try let your batter drain right out, you should let your battery drain every 2weeks or so
How do you think the lens adjusts itself? By magic? There are gyros in the lens body that help to reduce the impact of movement on the lens...these gyros use power.3. Image stabilisation is basically a loose piece of glass that moves when the lens moves (so to keep the camera steady by adjusting itself so the focus stays the same(for small shake ofcourse)
Canon EF Lens Technology: Image Stabilization