Product Details
Original APM description below:The APM 1.25" UltraFlat Field Eyepiece features a high quality standard and a very compact design, which is designed to remove the field curvature at the edge, resulting in a flat, distortion-free image up to the edge of the visible field of view. The eyepiece has over-sized eyepiece lenses for the largest possible field of view and a 16mm eye relief - also suitable for spectacle wearers, the adjustable eyecups allow a comfortable view.
All lenses (8 lenses in 5 groups) have a broad-band-multicoating (FMC) and blackened lens edges. The plug-in sleeve is equipped with a thread for 1.25" filters.
The largest diameter of the eyepiece body is 44.5 mm. Weight: 137 grams.
| Eyepiece Series | Ultra Flat Field |
|---|---|
| Focal Length | 15mm |
| Barrel Size | 1.25" (31.7mm) |
| Apparent Field of View (Mfg Specified) | 65° |
| Eye Relief (Designed) | 16mm |
| Filter Threads | Standard 1.25" Filter Thread (M28.5 x 0.6) |
| Coatings | Fully Multi-Coated |
| Lens Elements | 8 |
| Lens Groups | 5 |
| Blackened Lens Edges | Yes |
| Tapered Barrel | Yes |
| Barrel Type | Tapered barrel |
| Protective Plastic Storage Container | Yes - Free Agena Eyepiece Container |
| Protective Plastic Storage Container Size | Agena 52x80mm |
| Maximum Width | 1.75" (44.5mm) |
| Rubber Eye Guard | Yes |
| Weight | 4.8 oz (137 g) |
