Telescope 102mm F7 Artesky 

Artesky presents the new line of APO refractors with 2 elements, the first is an element of the FPL53 Ohara (Japan) while the second is an element in Lanthane

It is possible to reduce it the focal length of a 0.8x factor to reduce the focal length to 570mm for an F/D 5.6 or to use it at full focal distance with 1x corrector.

This new APO guarantees a high chromatic correction thanks to a precise and neat construction, both in the production phase and in the sales phase; The image does not suffer from any chromatic aberration and remains very clear and well contrasted.

APO Extra Low-Dispersion

This APO refractor manages to reach very high color levels thanks to the combination of two optical glass, the first is a FPL53 Ohara (Japan) element while the second is an element with Lanthane, this combination produces a product without chromatic error for Thus obtain much more efficient results than a doublet equivalent to the market.
Advantages

Features:

•     Apeture: 102mm
•     Focal distance: 712mm
•     F/D: 7.0
•     Optical design: double lens (2 elements)
•     Composition: Glass: FPL53 Ohara (Japan) + Lanthane
•     Tube material: aluminum
•     Weight of the tube: 4.1 kg included of the rings and a bar
•     Tube length: 600mm
•     Tube diameter: 105mm
•     Rings: 3x m6 threaded holes on both sides - Distance from M6 -1x central holes, 2x to 13 mm from the center
•     External diameter of the fogweed: 121mm
•     Focuser: 2.5 ”Rap
•     Connection: 1.25 ", 2" and M63x1 female thread
•     Focuser travel: 123 mm of the flow 2 " - 161 mm of the M63x1 net