APM CNC Triplet 115mm F7 Apochromat Refractor

The APM - LZOS 115mm Apochromat f/7 with the lightweight and compact CNC tube and 3.5" Starlight Instruments focuser utilizing a 1:10 fine focus is a superb and powerful visual telescope but providing far more light grasp and resolution than a 4" whilst remaining extremely portable. These tubes are made in Germany with non-compromising mechanical quality. The dew cap slides smoothly over the tube without producing any paint scratches. The focuser is a full 3.5" size and rotates smoothly and with zero image shift. This zero shift rotation is very important when your camera has already achieved its best focus and you would like to rotate it to the best position.


The included finder bracket has a quick exchange style screw system and is mounted on the rotatable focuser, which allows focuser rotation to position the finder scope to the most comfortable observing position. The focuser comes with large anodized focuser knobs and moves extremely smoothly as would be expected from the world famous Starlight Instruments 3.5" Feathertouch.

Our APM Apochromats have been designed by the legendary and world famous optical designer TMB optical and hand finished by LZOS to specifications not possible with machine finished optics.

D=115mm F=805mm F7
Tube outside diameter 136 mm
Dew shield outside diameter: 152 mm
Dew shield outer length : 230 mm
Weight - Optical tube , 3.5" focuser, finder bracket : 7.05 kg = 15.51 lbs
Weight - Optical tube, 3.5" focuser, finder bracket, tuberings : 8.05 kg = 17.71 lbs
Shortest length for transportation : dew shield retracted, focuser racked fully in: 650 mm
Observing length: dew shield extended, focuser racked fully in : 760 mm
Back focus when focuser racked fully in : 220 mm
Back focus when focuser racked fully out : 107 mm
3.5" Starlight instruments focuser
50 mm finder bracket
2"/1.25" adapter
2" Extension 80 mm long
Tube rings CNC

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