*** Sold ***
The filter without cell was purchased from Lumicon as a cosmetic blem, then mounted in a Tiffen cell with 48mm threads for use in 2-inch eyepieces and diagonals. The advertised transmission numbers for this particular filter were very good; 94% and 95%. There is a light scratch about 3/16" long half way between the center and edge of the filter. This is not noticeable at all during use. This filter works great on most nebulae; especially on the Veil and North America.
Asking $125 shipped in the Continental U.S.