ans wers in a flash !

Will movie mode wear out my camera shutter?

Alan Wright, Wigan

Chris says… No, in movie mode the physical shutter stays open, and an ‘electronic’ shutter exposes each frame.

What does the ‘lock’ on my 18-200mm lens do?

Dave Johnson, W. Midlands

Chris says… This locks the lens in the 18mm position for storage and transport.

Can I use a 1.4x TC with my Sigma 150-500mm?

Lance Harris, Canada

Chris says… Sigma’s 1.4x teleconverter works, but the maximum aperture will drop to f/7.1-9.1 so AF will be a problem.