TS ED Apo Telescopes 102 mm f/7 with 2.5" Crayford Focuser

The 102 mm F/7 extra-Low dispersion - ED refractor from Teleskop-Service is an ideal transportable "Allround-telescope" for observation and astrophotography. The well corrected optics provide an almost aberration-free image, due to the moderate f-ratio and the built-in ED glas. You can use this APO refractor for astrophotography or for impressive visual observations. The good optics, the "photography-fit" 2.5" focuser and the solid construction guarantee joy and success and marvellous moments beneath the night sky.

The advantages of the TS 102 mm f7 ED refractor:

• very well corrected ED optics - adjustable
• rigid and accurate 2.5" focuser - ball-mounted extension tube - rack & pinion mechanism
• 2" receptacle with reduction to 1.25" with ring clamping and additional photo-thread M63x1 and M68x1 for screw-connections
• Robustly crafted tube with fixated dew cap and CNC tube rings guarantee optimal mechanical stability

The doublet ED objective:

The hand-manufactured objective is mounted in a temperature-compensated and adustable cell. It consists of two lenses including one ED element for a good correction of chromatic aberration. We use highest-quality multi-coating on each glass-air surface for optimal contrast.

The TS 102 mm f/7 ED refractor is perfectly suited for astrophotography:
The precise focuser and its light-gathering optics make the 102 mm ED refractor a well-suited telescope for astrophotograpy. To flatten the image field, we recommend the following correctors - they are also linked in the accessory section below

TSFLAT2 - 2" field corrector without focal length change ... outstanding illumination - also suitable for large sensors - a field of roughly 40 mm in diameter is illuminated 100%. The backfocus from the M48 thread of the corrector is 111 mm. With the TSFLAT2A adapter kit you will get a customized adaptation for your camera.



The compact 102 mm Apo by TS - with 2" Crayford focuser.