and yes, Edmund is the inexpensive knock-off.
Tiffen (who owns production rights of Wratten filters) runs about US $200
for a 100 mm square filter.
http://www.tiffen.com/displayproduct.html?tablename=kodakaccessories&itemnum=EK1763945
-sandor
On Wed, Mar 8, 2017 at 2:27 PM, Sandor Ferenczy <sandorferenczy@xxxxxxxxx>
wrote:
https://www.edmundoptics.com/optics/optical-filters/color-
dichroic-filters/kodak-wratten-filters/53700/
75 mm X 75 mm
either a 47 or 47A should work
sandor
On Wed, Mar 8, 2017 at 1:58 PM, Martin Chrobak <mfchrobak@xxxxxxxxx>
wrote:
Please:
Still need a recommendation for an inexpensive, gel or other
synthetic Cobalt Blue filter that can be used to excite topical
fluorescein.
3X3 or so. Not a 50 foot roll. Where to purchase?
Thank You,
Martin
