As a suitable entry tube, Swarovski's small ATS tube is available in an aluminum chassis with HD design that counteracts chromatic aberration.
Apart from a slightly higher weight (approx. 110 grams), it has exactly the same specifications as the ATM 65 (which was available in the years 2009-2012) and differs in appearance in that the focusing ring is again black, while the lens hood is green in classic Swarovski fashion. The tube is nitrogen-filled and waterproof down to a depth of 4 meters and functionality is guaranteed in the temperature range -25 degrees to +55 degrees C. Absolute edge sharpness and neutral color reproduction are guaranteed by the so-called Swarotop and Swarodur coatings. In addition, it is easy to keep the lenses clean with Swaroclean, which repels dirt and water. There is a filter thread, but it is at the very end of the lens hood, which in practice means that any filter ends up completely exposed just outside the lens hood. A tailored emergency bag is available as an accessory for those who wish to protect their tube a little extra.
Product information
Length: 370 mm incl. ocular
Weight: 25-50xW 1405 grams / 20-60x 1370 grams
Closest focusing distance: 3 meters
Light transmission: 25-50xW 85% / 20-60x 86%
Field of view: 25-50xW 42-27m/1000 m / 20-60x 36-20m/1000 m
Waterproof: Yes, to a depth of four meters.
Filter thread: 67 mm
Functional temperature: -25 to +55 °C
Warranty: 10 years