Unit is a Gamma Scientific Inc.700-10-4A variable aperture photometric lens.
Specifications:
-2.5 Maginification, Maximum Aperture .25
-Mounted on photometer bracket 3924/67875 ns 006.
-Eye piece model 100-10-37A
-Aper. 150u sn bw578
***MPN 700-10-4A
***OEM Gamma Scientific Inc
***SKU*** 26235



