Description
The 10.5mm PF hits the magnification range that most observers reach for most often high enough to resolve real detail in deep-sky objects and show cloud belts on planets, low enough that atmospheric seeing doesn’t shut you down on an average night. Its 4-group optical design is the most refined in the PF line apart from the 6-element 5.5mm, and at this price, it’s hard to argue with. If you’re building a PF set, this is the one Alan Dyer put in his recommended starter kit. There’s a reason for that.
Tech Details:
| Focal Length | 10.5mm |
| Apparent Field of View | 60 |
| Field Stop Diameter | 11.7mm |
| Optical Elements | 5 elements / 4 groups, multicoated |
| Eye Relief | 16mm |
| Barrel Size | 1.25″ |
| Filter Threads | Yes standard 1.25″ |
| Weight | 5.2 oz |
| Eyecup | Rubber fold-down |
| Warranty | 1 year |
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