Uv/vis Filter Kit #48-626 - Incomplete, Includes 3 Of 8 Filters

US $800

  • Sacramento, California, United States
  • Nov 3rd
Three lenses from a UV/VIS Filter Kit #48-626 $30 for an individual filter or $75 for all three and the box. Kit contains: 1 - #48-621 (1.3)  1- #48-622 (1.5) 1- #48-624 (2.5) The five other lenses that come in the kit are missing. I have not personally tested the filters, but they appear to the naked eye to be in excellent condition. Originally these filters came in this kit: Here are the list prices for the individual filters on the EO website: 1.3 OD 12.5mm Diameter UV-VIS ND Filter Stock #48-621 $79.50  1.5 OD 12.5mm Diameter UV-VIS ND Filter Stock #48-622 $79.50 2.5 OD 12.5mm Diameter UV-VIS ND Filter Stock #48-624 $79.50 Neutral Density (ND) filters are designed to reduce transmission evenly across a portion of a specific spectrum. ND filters are typically defined by their Optical Density (OD) which describes the amount of energy blocked by the filter. A high optical density value indicates very low transmission, and low optical density indicates high transmission (Equations 1 -- 2). ND filters can be stacked to achieve a custom optical density. To calculate the final system OD, simply add the OD of each filter together.

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