Thanks Murray, I was thinking Hoya because of the name, and I have a selection of Hoya effects I bought second-hand back in the day. Still functional though not as versatile as PS obviously.
Thanks Mike - this is good info, I hadn't considered ease of cleaning - I have lenspens that are good on everything else. Warming looks interesting, this is new to me
Thanks Rich, Cokin was what's lost - it was second hand for about a fiver, probably a tenner in today's money
Thanks Greg, the B+W price pushes it to a coin toss between a whole new lens though (something I was aiming for by Xmas anyway, so...)
Thanks Adam - I'm not much of a fan of unscrewing, scratches, nor hefty prices. You may have just made the perfect case against them!
They're necessary for certain things Chuck. Like museums and art and lakes and skies etc. Looking at Rich's portfolio, I'd say the chrome/duco reflections are the perfect reason you'd not use one.