I cant decide............
and what is the purpose of being able to change the metering time?
I think I am going back to spot metering ( I only seem to shoot manual with any lens ) tho I have been using the centre weighted.......

then the book tells me that S/S and AV change depending on the zoom position....even while the AE lock is engaged when using a zoom lens for which the max aperture varies according to the focal length. However the exposure value does not change and the pic is taken at the brightness level set by the AE lock............
What if I am being artyfarty and dont want the aperture to change? Dont lock it?
yikes
cheers
Jan