Protects against moisture in telescopes: Fits any 2" focuser!
The telescope dryer is used to remove and prevent moisture in telescopes. It provides lasting protection for your system and prevents dirt from entering. A permanently dry system does not provide a breeding ground for lens fungus.
The situation: You have spent a night outdoors and dew is settling on all surfaces. All your equipment is getting wet. With Newtonian systems, this moisture even reaches the inside of the telescope.
But it's not just dew that causes moisture. Temperature fluctuations alone cause moisture to form inside telescopes. Even supposedly closed systems such as refractors, SCs or RCs are by no means protected against moisture formation inside!
Manufacturers provide little help on the subject of drying. To air out and dry the tube on Newtonian telescopes, the dust covers on the telescope opening are usually removed. On RCs and SCs, the dust covers on the focuser are removed and the instruments are set up with the correction plate facing downwards to allow air to circulate.
None of this makes much sense, because:
- Opening the dust covers allows all kinds of dirt particles, e.g. dust, pollen and insects, to enter unhindered. This applies to all systems!
- Placing an RC or SC with the correction plate facing downwards can leave water stains on the plate.
- A certain amount of residual moisture always remains in the instrument.
- Mechanical components such as the focuser can become sluggish due to dirt and rust.
All of this usually means that the instruments have to be completely dismantled and cleaned. In some cases, the bearings of the focusers have to be replaced. This is a major and expensive undertaking, especially with RC and SC instruments.
Even worse is oxidation or lens fungus on optical surfaces. Many expensive instruments have fallen victim to these problems.
The solution: simply replace the dust cover of the focuser with the noctutec® telescope dryer.
Inside the dryer are silica gel balls that absorb moisture. A protective cover prevents particles of the dry pack from entering your telescope. When the silica gel balls are saturated, they change colour from orange to green. You can open the dryer and dry the balls. This can be done in an oven at 50°C. You can also place the balls in a ceramic dish on the radiator. Once the silicate is dry, the indicator returns to its original colour. The dryer is now ready for use again.
The noctutec® telescope dryer is a must-have for every telescope!
Made in Germany!
