$1.50
https://www.adorama.com/rosb.html?gclid=Cj0KEQiA9P7FBRCtoO33_LGUtPQBEiQAU_tBgKAwqmLu8pmk4UoveRgk7hnKM6uJR4lI1B0cdReQxAsaApDj8P8HAQ
Marshall
On Mar 8, 2017 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