The AP 106/700 is an apochromat with a colourless triple objective with glass from Hoya (Japan).
The apo shows you lunar craters or planets without colour aberration with a contrast that only a refractor can achieve. But bright stars are also imaged without any disturbing colour fringing. The reason for this is the high-quality triplet lens with the special FCD100 glass from Hoya in Japan. This glass has the same correction as the well-known FPL53.
The air gap triplet objective is mounted in a stable, temperature-compensated mount. The entire mount can be adjusted with tension and compression screws. Collimation is therefore not carried out by lateral pressure on the lenses and is therefore much more accurate and better for imaging.
In combination with the TS Optics Flattener 0.75 M63, the apo is ideal for astrophotography.
FCD100 is an optical glass with extremely low dispersion, equivalent to fluorite (CaF2). This glass, in combination with optical glasses with a high refractive index, achieves excellent correction of chromatic aberration (colour fringing). The difference in dispersion performance compared to the well-known FPL53 glass is less relevant than the difference in how well the optics are polished. FCD100 is Hoya's designation for this special glass, just as FPL53 is Ohara's registered name.
3.5" hybrid focuser: The focuser is equipped with a special bearing so that you can attach heavy accessories to it. It is not just ball bearings pressing against the focuser tube, which give way under higher loads. A rail is attached to the focuser tube, which is perfectly supported by adjustable ball bearings. This means that even with heavy accessories weighing up to 10 kg, there is no noticeable tilting.
The adjustment itself is decoupled and is achieved via a helical gear. This guarantees fine and smooth adjustment even with heavy accessories. The 1:10 micro reduction gear enables even more precise focusing. The focus position is fixed by locking the adjustment wheel. No screw presses on the focuser tube.
In addition to the 2" and 1.25" barrel extensions for visual observation, the focuser also offers an M63x1 internal thread and an M78x1 internal thread for screw-in adapters.
TS Optics is a brand of Teleskop-Service.
It not only matters which telescope you buy but also where you buy it. Our additional services:
- We are a leading telescope dealer and know the devices we sell. Our customer service team will gladly help you after your purchase if you have problems with assembly or operation.
- We provide a copy of the 80-page Telescope ABC beginners handbook with every telescope.
