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Condition:
This is a Japanese-made 5mm Fujiyama HD-OR orthoscopic eyepiece in excellent condition. The optics are clean and the body is unmarked. Includes both dust caps, but no box.
Description:
The entire Fujiyama lineup is parfocal, accepts standard 1.25" astronomy filters, and comes with plastic eyepiece caps. The chrome barrels of the Fujiyama HD-ORs are smooth-sided, and they have removed the helpful, but also often annoying, safety groove.
Solid construction, bright, clean and sharp views throughout a fully corrected 42 degree AFOV with sharp field stops makes the Fujiyamas perfect for every type of viewing. They are also an excellent match with high end apochromats for hard core planetary, lunar, solar and double star viewing.
Specifications:
| Eyepiece Series | Abbe Orthoscopic |
|---|---|
| Focal Length | 5mm |
| Barrel Size | 1.25" (31.7mm) |
| Apparent Field of View (Mfg Specified) | 42° |
| Eye Relief (Designed) | 3.4mm |
| Filter Threads | Standard 1.25" Filter Thread (M28.5 x 0.6) |
| Coatings | Multi-Coated |
| Lens Elements | 4 |
| Lens Groups | 2 |
| Blackened Lens Edges | Yes |
| Barrel Type | Smooth sided |
| Protective Plastic Storage Container | N/A |
| Optical Design | Abbe Orthoscopic |
| Height (Without Eyeguard) | 1.50" (38.0mm) |
| Maximum Width | 1.34" (34.0mm) |
| End Caps | 2 |
| Eye Lens Diameter | 0.16" (4.0mm) |
| Field Stop Diameter | 2.6mm |
| Parfocal | Yes |
| Country of Manufacture | Japan |