Quote Originally Posted by soilsample
Hello....
Thanks for such a nice friendly and informative user group.
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No answer yet? I'll give you my opinion...



Quote Originally Posted by soilsample

I am interested in a UV filter and a Polarizing filter.......
This setup has a lens adaptor which steps up from 46.5mm camera to 52mm. The lens has 52mm rear threads which fit into the 46.5-52mm lens adaptor, and 58mm front threads
My question (please forgive my newbie ignorance) is:

Should I get a 52mm filter to apply before the 2x lense? which I'd assume would allow me to use the lens cap.
OR
Should I get a 58mm filter to apply after the 2x lense?

Thanks again
Donald
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I would put the filter 'after' the lense - for the protection. The filter will be protecting the lense even when the cap is off. And of course, there is always the possible problem of vignetting when stacking elements, so the wider the better. Just my opinion, eh? ;)