Miscellaneous Filters Kept at the 3-meter
| Name | Thickness | Notes |
|---|---|---|
| UG? | 1 mm | purple, fingerprint on corner |
| UG5 ? | 1 mm | purple, might be UG1 or 11 |
| UG5 | 2 mm | |
| KG1 | 2 mm | |
| 88-A | ?? | red; labeled "for filter wheel" |
| BG-3 | 1 mm | fingerprints on one edge/corner |
| BG-14 | 2 mm | |
| BG-14 | ?? | in labeled holder |
| ?? | 2 mm | blue, no label |
| AO-3 | 2 mm | tape on one corner |
| KG-2 | 2 mm | in holder |
| GG-385 | 3 mm | labeled on side |
| KV-418 | 3 mm | tape label on filter |
| KV-470 | 3 mm | tape label on filter |
| GG-495 | 2 mm | 2 mm wedge |
| OG-4 | 2 mm | tape label on filter |
| OG-515 ? | 2 mm | broken corner, large chip adjacent to same corner |
| OG-530 ? | 2 mm | |
| OG-550 | 1 mm | 1.5 x 2 inch in size |
| BG-12 | 1 mm | |
| RG-610 | ?? | in holder |
| RG-850 | 2 mm | 2 filters, each with a fingerprint on its edge |
| RG-8 | 1 mm | |
| RG1000 | 3 mm | tape label RG1000 on filter |
| UG? | ?? | in holder |
| BG-38 | 2 mm | Currently in Hamilton Guider filter wheel |
| CuSO4 | liquid filled filter, .250 CuSO4, 1 mm quartz windows, large bubble | |
| 13-25-9-5 | 2 mm | fingerprint on corner |
| NG11 ? | 2 mm | two filters, may or may not both be NG11 |
| NG11 | ?? | in holder |
| UG-5 | ?? | in holder |
| ?? | liquid filter, probably CuSO4, large bubble | |
| ?? | liquid filter in 2-inch holder, probably CuSO4, half empty, crystalized blob | |
| ND Filters | ||
| ND 0.4 | Currently in Khayyam | |
| ND 0.8 | Currently in Khayyam | |
| ND 1.0 | Currently in Khayyam | |
| ND 2.0 | Currently at APF | |
| ND 3.0 | Currently in 120" Guider, empty holder | |
| ND 4.0 | Currently in Khayyam | |
| Lenses and Dichroics | ||
| 1.5-inch Lens | 1.5-inch round | |
| 1.5-inch Lens | in 2-inch holder | |
| 2-inch Lens | 2-inch round | |
| 2-inch Lens | in holder | |
| Cyan Dichroic | ||
| Blue Dichroic | 1 x 2-inch, labeled "Please Return unused portion to S. Vogt, U. C. Santa Cruz" | |
| Detector Trimmer | broken | |
| Detector Trimmer | 1 mm | |
| Filters not stored in slots | ||
| Kast 3" CuSO4 | 3-inch diameter round | |
| Filter No. 2A Kodak | 2-inch square in box | |
| ?? | thick | approx. 1 x 3 cm, in holder. Black, green sheen on one side |
| ND4.0 | 1-inch round, 13-26-8 on side, envelope says 13-27-7-5 | |
| ?? | 3 or 4 mm | clear |
| ND? | Box of three 1-inch round filters | |
| #25 Kodak | thin | in cardboard holder, Wratten Gelatin Filter |
| F2 Filter in B Glass | ~8 mm | 3-inch square Kodak Wratten Filter |
| ?? | 3-inch square red filter | |
| ?? | 4 mm | 1.5 x 3 inch clear glass |
| Ground Glass Diffusers | misc | miscellaneous sizes, thicknesses, and shapes |
| UG11; 3mm C9863; WR39B | labeled "From Slit Pedestal" | |
| ?? | 2 mm | approx. 3 x 4 inch red glass filter |
| glass | Box of six 3 3/4-inch round glass | |
| Plexiglass U.Y.A. | labeled (0.150-inch thickness to absorb lambda<3450A | |
| Wratten 18A | Kodak in B Glass, dark red | |
| Corning? Blue Filter | thick | chipped corners |