----- Original Message -----
From: F. Craig Callahan <[EMAIL PROTECTED]>
> Does anyone have experience with the 48mm threaded filter holder for the
> 300/2.8L et. al.? Is it difficult to find threaded filters that will fit
into
> the lens slot? Do you have an opinion as to whether it works worse or
better
> than the gellatin-filter holder?
The only one I use with the 300/2.8 IS is the 52mm drop-in circular
polariser. It has actually been very useful with little affect on AF
performance. I haven't looked for any other filters for this lens though.
Tim
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