More about the series PF ED...
The PF-100ED is one of the best you can get... short of building your own! The 100mm ED-Objective lens and Lanthanum glass gather light with spectacular resolution and clarity. Combined with SMC lens coatings, BaK4 prisms and the superior XW eyepieces, you will enjoy razor-sharp edge-to-edge images - not only for terrestrial and also for lunar and planetary observation. By simply adding a PENTAX SLR camera and adapter, the PF-100ED transforms into a formidable telephoto lens for fine detail photography.
Attention: Eyepieces not included in shipment.