Whilst on holiday in Crete last week, I found a canister of Ektachrome E100S
x36 Professional film in a layby - presumably exposed (no lead-in).  Had it
been ordinary print film, I'd have sent it to TruPrint for a cheap
turnround, just to see if I could trace the owner.  But it ...

Can someone please enlighten me as to the different effects of linear and
circular polarising filters.
According to Jessops catalogue, autofocus (therefore presumably most digital
cameras) and video cameras must use the dearer circular polarisers. Why is

Bear with me, this is on topic...
I'm currently using a 17" aperture-grille CRT which I bought for £350
about 7 years ago. In the last few months it has started flickering
occasionally, as though the power had been rapidly disconnected and

End lurk mode
I've just bought a D70 package from Jessops consisting of a D-70
kit (body and Nikkor 28-80 AFG lens), Sigma 55-200 and SB-50DX.
The camera and both lenses seem to work OK, the pictures taken so