SFL Binoculars 10x40
With the ZEISS SFL binoculars (SmartFocus Lightweight), special moments can be experienced with ease. Optimized to be as lightweight and compact as possible, the SFL binoculars are a perfect addition to the SF family. The new Ultra-High-Definition (UHD) Concept ensures true-to-life color reproduction and the highest level of detail. Thanks to its SmartFocus Concept, the focus wheel is perfectly positioned and enables fast and precise focusing – even with gloves on. The optimized ergonomics and a large exit pupil allow for a relaxed and undisturbed viewing experience.
With a field of view of up to 115 meters at a distance of 1,000 meters and a closest focusing distance of 1.5 meters, the SFL 10x40 deliver a perfect overview combined with precise detail recognition.
The lens diameter has been reduced by 2 mm, making it possible to use thinner lens elements at closer spacing and thus reduce the binoculars’ weight by up to 20% and their volume by up to 13% compared to the ZEISS Victory SF models. As a result, the SFL binoculars are up to 30% lighter than comparable products from competitors.
Performance
Magnification
10 ×
Effective lens diameter
40 mm
Light transmission
90%
Exit pupil diameter
4.0 mm
Twilight factor
20.0
Field of view at 1,000 m (yds)
115 m (345 ft)
Subjective viewing angle
62° Ww
Close focusing distance
1.5 m (4.9 ft)
Diopter adjustment range
− 4.0 | + 4.0 dpt
Exit pupil distance
18 mm
Pupil distance
52 – 74 mm
Lens type
UHD
Prism system
Schmidt-Pechan
Features
LotuTec | Nitrogen filled
+ | +
Water resistance
400 mbar
Physical
Operating temperature
− 20°C | + 55°C (− 4°F | + 131°F)
Length
144 mm (5.7 ")
Width at an interpupillary distance of 65 mm
114 mm (4.5 ")
Weight
640 g (22.6 oz)
