Sony A1E and accessories
 

Recently purchased Sony wide angle converter VCL HG 0737Y for use with Sony A1E.

Can anyone assist with two small queries on this:

a) Instructions say 'remove MC protector before use by unthreading it anti clockwise'. I can't see any 'MC protector - lens just comes with rubber caps for front and rear. Rang Sony and they seemed as bemused as me!

b) Instructions also say it is unwise to use filters with this lens. Seems a bizarre comment as I've heard of the lens being used with a matte box specifically to allow ND filters etc.

Thanks

Alan