arcing/crackling sound in D40 with auto focus on

[bobc4d]

This past weekend I was shooting my kids soccer game and used auto focus. When I pushed the shutter button half way I could hear a slight arcing/cracklling sound.

Is this normal when using auto focus with the shutter button half way pressed ?

is it hard on the camera/auto focus/lens to do this ?

thanks,
bob

[fionndruinne]

Were you using sports mode? Possibly this is your first experience with AF-C, the continuous autofocus. With AF-C, the camera will continually try to focus lock whenever your finger is on the shutter halfway, even if you're moving it all over the place. Nothing whatever wrong about it.

[K1W1]

More than likely it was the VR mechanism in the lens. They tend to make strange noises in the 55-200VR.

[fionndruinne]

More than likely it was the VR mechanism in the lens. They tend to make strange noises in the 55-200VR.

That's true; when I tried one out at Ritz, I distinctly heard a tiny voice say "buy me". The salesgirl didn't hear it, and said I was crazy. I left.:p

[K1W1]

That's a different noise. That's the noise of the little red NAS devil sitting on your left shoulder.

[tcadwall]

I second the motion... VR

[bobc4d]

thanks fionndruinne, yes I was in sport mode. good to hear nothing wrong about it.

@K1w1, it is a slightly different noise from the VR sound

I appreciate the input

bob