The 102mm f/7 ED refractor from Teleskop-Service is an easily transportable "all-round telescope" for visual observation and astrophotography. The well-corrected optics offer an almost color-clean image thanks to the moderate aperture ratio and the ED glass used. Use the Apo refractor for astrophotography or for impressive visual observations. The good optics, the "photo-friendly" 2.5" focuser and the good workmanship guarantee joy, success and wonderful experiences under the starry sky.

The lens is embedded in an adjustable and temperature-compensated cell. The system is two-lensed, with an ED element for good correction of the chromatic aberration. TS uses the best possible multi-coating from the manufacturer on every glass-air surface for optimal contrast results.

With its aperture ratio of f/5.5, this apochromat is faster than most other apochromatic refractors we know. The high light power has several advantages. The usable field is increasing, especially in photography. In addition, the short f/ratio enables shorter exposure times, both in the field of astrophotography and nature photography during the day under extreme conditions. We offer suitable correctors for very good field sharpness.

The precise focuser and the powerful optics make the 102mm ED refractor a good telescope for astrophotography. To correct the image field, we recommend some correctors that we have linked in the accessories section.

Characteristics:

• Good quality doublet-ED lens
• Aperture 102mm, focal lenght 714mm, f/7.0
• Multi-coatings on any glass-air surface
• 2.5" R&P focuser with micro reduction
• Femal threads M68x1 and M63x1 for correctors and reducers

• Optical tube 102/714mm
• Dew cap, retractable
• 2.5" R&P focuser with micro reduction
• Reductions to 2", 1¼"
• CNC tube rings and GP level dovetail