APM Products

Orion tube rings - aluminium - for tubes with D=100 mm Stable tube mounting rings with hinge The rings have a flat support surface on both sides. At the base of the rings there is an M6 female thread for attachment to a dovetail bar or to the top plate of the mount. On the opposite side of one ring you will find a female thread (1/4" photo thread), on the one of the other a male photo thread with counter ring for attaching a camera. The rings have a felt lining to protect the telescope tube.

Item condition: new, but not original packed

Glas FK61 (similar to Ohara FPL51), has blackenededges, a measured transmission von over 99% from 400 nm to 700 nm, optimized for F/4 Newtonian-Telescopes. The barlow has a negative focal length of - 62.9 mm and a working backfocuse of 105 mm from center last lens to focuse ( eyepiece field stop). You will need now a 1.25" eyepiece holer 104 mm long

Item condition: new and original packed

Product description Tele Vue - 16 mm Nagler Eyepiece Type 5 Nagler type 5: The 16 mm is with only 198 grams weight a real tiny one. Type 5 gets along with only 6 lenses. Contrast and transmission are simply perfect. The pupil distance is 10 mm, the view is not very comfortable for spectacle wearers, without glasses you have the full field of view without any problems. The 16 is well suited for binoculars and provides the largest actual field of view of all Nagler eyepieces with 1.25? Scope of delivery: Eyepiece TeleVue Nagler 16 mm

Item condition: new and original packed

APM-G.Düring designed comacorrecting 1.25" Barlowlens 2.7 x with dual photo-visual Adapterset

Item condition: new and original packed