Jump to content


Photometric V filter sources?

  • Please log in to reply
26 replies to this topic

#26 Andean Slave

Andean Slave

    Lift Off

  • -----
  • Posts: 21
  • Joined: 08 Jan 2011

Posted 10 November 2012 - 03:36 PM

The filter crystalisation is not an 'old' filter problem, but a 'cheap' filter problem. Due to the type of glass substrate being exposed to the air, more expensive filters have dielectric coatings (or similar) that obviously push up the price.

Mine is the cheaper AAVSO version which does suffer from this, but it cleans off easily.

..bit of a lay view there, it's a known phenomenon to users of the Schott glasses and others too.

The solution is a solution: Balzers Plastic Polish

..btw Arne Henden gave _everyone_ a V filter lol

#27 gavinm


    Surveyor 1

  • -----
  • Posts: 1708
  • Joined: 26 Aug 2005
  • Loc: Auckland New Zealand

Posted 10 November 2012 - 09:41 PM

..btw Arne Henden gave _everyone_ a V filter lol

I know... lol back

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics