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Carl Zeiss SFL 10x40

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  • Binoculars Carl Zeiss SFL 10x40
  • Binoculars Carl Zeiss SFL 10x40
Manufacturer data

Manufacturer:

Carl Zeiss
web site

Distribution / Sales:

M.K. Szuster
web site
Specifications
Manufacturer Carl Zeiss
Model SFL 10x40
Lens diameter [mm] 40
Magnification [x] 10
Angular field of view [deg] 6.6
Linear field of view [m/m] 115/1000
Exit pupil [mm] 4
Eye relief [mm] 18
Min. focusing dist. [m] 1.5
Twilight factor 20
Brightness 16
Prisms BaK-4/roof
Dimensions [mm] 144x114
Weight [g] 640
Waterproof Yes
Nitogen filling Yes
Argon filling No
Image stabilization No
Tripod exit No
Focusing central
Warranty [years] 10
Accesories Neck strap, lens caps, case, cloth.
Price 0
Additional information Announced: March 2022.
Schmidt-Pechan prisms
Transmission 90%.
Waterproof 400 mbar.
Operating temperature from -20°C to 55°C
LotuTec and Zeiss T* coatings
Average rating (1 owners reviews)
Build quality
Optical quality
Accesories and usage
Value for money

Overall

4.50 Good
Owners reviews (1)
  1. WernerW
    WernerW 28 June 2026, 16:38
    Build quality
    Optical quality
    Accesories and usage
    Value for money

    Overall

    IP 172.226.x.x
    Owner since: 4 years
    Price: 1950 Euros
    User profile: Amateur

    Cons: Though very light, my Zeiss makes itself ”known” after long coastals works and I have started to look for an additional SFl 8x30 in order to carry less. The front covers are fiddly and I would like more stable version that is easier to attach and remove. I have replaced the neck strap and the strap of the protective case by paracord straps made by German specialist C-Rope which I highly recommend.

    Pros: I work as an interpreter and often sit in the back of huge conference rooms. Sometimes it is difficult to read texts that are displayed or projected at the front of the room - and therefore I need excellent low light qualities - which my Zeiss SFl 10x40 delivers excellently. I also travel to coastal regions often - in Germany and France - and take the ferry from Kiel to Gothenburg in Sweden. I love observing ships, birds and seals - and my Zeiss does exceedingly well.

    Summary: Excellent build and optical qualities - great and clear field of vision.