Bako
Member
I would like to ask the owners of NL Pure and e.g. Leica or Zeiss to try the test - condensation on eye pieces. This test could be very similar to the one in the attached video.
According to some information, Swarovski has stopped using the Swaroclean around 2020, it has been discontinued on NL's for environmental reasons. Leica still uses Aqua Dura and Zeiss uses LotuTec. These coatings repel water and make the lenses easy to clean.
AquaDura:
The coating raises the surface tension of different materials. In practice, that means that when water comes onto the eyepiece or the objective lens' surface, it forms bigger droplets than it normally would. Due to the gravitational force, bigger droplets are easier to slide off the lens. Furthermore, if someone exhales onto the lens without AquaDura it fogs up. With AquaDura it also fogs up, but for a really short amount of time. That allows you to use the binoculars better in adverse conditions. Also, it prevents water, oil, dirt and other particles from sticking to the surface. It also mildly protects the lenses from scratches.
LotuTec:
Dirt doesn't stand a chance on the LotuTec surface treatment: the CleanCoat layer smoothes the surface of the lenses, so dirt and dust do not stick to the surface of the lenses, and lens care is very easy. Completely invisible! Thanks to the moisturizing properties of the surface treatment, water immediately slides off the lenses - like a lotus flower. This is an attractive bonus, especially in the case of anti-reflective lenses, because thanks to the improved reduction of reflections, you will notice that they are dirty sooner (compared to lenses without such a surface layer).
Who can do this test Swaro - Leica, or Swaro - Zeiss, it would be very helpful. I can't believe that Swaro binoculars (eye pieces) don't have any water resistant coatings now.
According to some information, Swarovski has stopped using the Swaroclean around 2020, it has been discontinued on NL's for environmental reasons. Leica still uses Aqua Dura and Zeiss uses LotuTec. These coatings repel water and make the lenses easy to clean.
AquaDura:
The coating raises the surface tension of different materials. In practice, that means that when water comes onto the eyepiece or the objective lens' surface, it forms bigger droplets than it normally would. Due to the gravitational force, bigger droplets are easier to slide off the lens. Furthermore, if someone exhales onto the lens without AquaDura it fogs up. With AquaDura it also fogs up, but for a really short amount of time. That allows you to use the binoculars better in adverse conditions. Also, it prevents water, oil, dirt and other particles from sticking to the surface. It also mildly protects the lenses from scratches.
LotuTec:
Dirt doesn't stand a chance on the LotuTec surface treatment: the CleanCoat layer smoothes the surface of the lenses, so dirt and dust do not stick to the surface of the lenses, and lens care is very easy. Completely invisible! Thanks to the moisturizing properties of the surface treatment, water immediately slides off the lenses - like a lotus flower. This is an attractive bonus, especially in the case of anti-reflective lenses, because thanks to the improved reduction of reflections, you will notice that they are dirty sooner (compared to lenses without such a surface layer).
Who can do this test Swaro - Leica, or Swaro - Zeiss, it would be very helpful. I can't believe that Swaro binoculars (eye pieces) don't have any water resistant coatings now.
