Been playing around with various IR filters this afternoon and found that I'm getting the best results with a far 'stronger' filter than the ubiquitous 695 nm variety (B+W 645, Hoya R72 etc.).
This one here... http://www.photosight.ru/photo.php?photoid=1429884 ...has been taken with a Wratten #87 gel filter. While one can still see a little trough the usual 695 nm filters, this one is totally opaque to the human eye. Cut-off of the #87 is around 820 nm. Exposure times are considerably longer, as well, in this case around 2 to 4 secs at f8 on a bright sunny day. The RAW file was treated with Lightroom and only the Magenta info was used in the grey conversion. Comments and suggestions, as always, most welcome. Ralf -- Ralf R. Radermacher - DL9KCG - Köln/Cologne, Germany private homepage: http://www.fotoralf.de manual cameras and photo galleries - updated Jan. 10, 2005 Contarex - Kiev 60 - Horizon 202 - P6 mount lenses
