A rare find, while going through a box not opened since the late 20th century !Part Number 63-1028 "and then there was one"(Consider this Tele-Compresser Lens if you are notcompletely satisfied with your present F5 or F6.3 unit,can be used with All Celestron & Meade S/C"swith a "B&L Criterion to Others Adapter Ring" $39.and a B&L Off Axis Guider with Shutter)
A Quality Japanese Optic !!
B&L Criterion ceased operations here in Connecticut in November of '87 - We purchased all the remaining Telescopes and Accessories at that time -This is one of those items.
Just another, of Hundreds of Unique AstroItems from an Inventory extending over 40 Years.astroptx.com
Filed under: Eyepieces & Accessories