Filter positions - filter "zoom"
Since buying my first GND filters I've been wondering,
I've seen advice saying to put the filter as close to the lens as possible but surely this way you use less of the filter, of course with a zoom lens thing will change continuosly, has the concept of ajusting the filter distance ever been explored ?
as I have a size A polarizer and can't spend £ 60 on a size P one as I have all other filters in size P I'd be inclined to find a way of putting the P filter holder on the end of the A sized holder.
is anyone with me on this or have I gotcha all confused as to what I'm on about
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