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ZEISS. Discover the fascinating world of birds, and win a birding trip to Columbia

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  1. ZEISS

    Celebrating 175 years of a passion for optics!

    ZEISS has been developing optical devices that are specifically designed to meet the needs of our customers since the company was founded 175 years ago. Carl Zeiss, Ernst Abbe, and Otto Schott were three visionaries who changed the world with their achievements in the field of optics...
  2. ZEISS

    Securing the wintering grounds of the Endangered Spotted Greenshank (Tringa guttifer)

    Photo: Gim Cheong Tan Now here is a fascinating migratory bird that has really caught our attention. Not only is it one of the world’s most threatened shore birds, it is also the only one to build its nests in trees! Spotted Greenshank (Tringa guttifer) is listed as ‘Endangered’ on the IUCN...
  3. ZEISS

    ZEISS engages sponsorship with Birdability

    New organization promotes inclusion and access for those with disabilities or health concerns. Through education, outreach and advocacy, Birdability works to ensure the birding community and the outdoors are welcoming, inclusive, safe and accessible for everybody. They focus on people with...
  4. ZEISS

    ZEISS Virtual Event at the UNESCO International Day of Light

    To celebrate the International Day of Light 16 May, ZEISS is hosting a series of talks from company experts intended for a broad audience on Sunday, 16 May. Learn how light enables a wide range of ZEISS technologies that shape day-to-day life. Read more here: International Day of Light
  5. ZEISS

    ZEISS Virtual Event at the UNESCO International Day of Light

    To celebrate the International Day of Light 16 May, ZEISS is hosting a series of talks from company experts intended for a broad audience on Sunday, 16 May. Learn how light enables a wide range of ZEISS technologies that shape day-to-day life. Read more here: International Day of Light
  6. ZEISS

    ZEISS Virtual Event at the UNESCO International Day of Light

    To celebrate the International Day of Light 16 May, ZEISS is hosting a series of talks from company experts intended for a broad audience on Sunday, 16 May. Learn how light enables a wide range of ZEISS technologies that shape day-to-day life. Read more here: International Day of Light
  7. ZEISS

    ZEISS Virtual Event at the UNESCO International Day of Light

    To celebrate the International Day of Light 16 May, ZEISS is hosting a series of talks from company experts intended for a broad audience on Sunday, 16 May. Learn how light enables a wide range of ZEISS technologies that shape day-to-day life. Read more here: International Day of Light
  8. ZEISS

    Birding - A way of life

  9. ZEISS

    ZEISS launches new “TryZEISS” scheme in the UK

    Customers can now enjoy a free 48 hour hire of a variety of ZEISS products Optics from ZEISS have a legendary reputation. Generations of nature lovers swear by their ZEISS optics – many of them are still in constant use today. However, we understand that buying new optics can represent a...
  10. ZEISS

    Grassland Birds Need Specific Protection

    Bird species, which breed on the ground in grasslands, experience big challenges in times of intensive agricultural use of land, falling groundwater levels and general land usage. How can we protect the Common Snipe, Northern Lapwing, Eurasian Curlew and Montagu’s Harrier from serious declines...
  11. ZEISS

    9. Industry 4.0: Simplifying Service via Data Matrix Code

    Rapid product tracking in a digital assembly department 
and in customer service Perceptive observers have already discovered the inconspicuous detail that adorns the inside of the new ZEISS Victory SF 32 in addition to the familiar serial number. This “Data Matrix” contains the exact material...
  12. ZEISS

    8. The Right Binoculars

    First decide on your budget. ZEISS offers Victory SF binoculars at the premium level, mid-priced professionally performing Conquest HDs, and as a first foot on the ZEISS ladder, the competent and affordable Terra ED range. Note too the availability of Zeiss Victory Pocket models offering...
  13. ZEISS

    7. How to Assess Binoculars

    Start by comparing specifications and reading reviews, but remember that the only important test is the one that you do when you try out binoculars at the dealers. If you can, go to a dealer that has a view of countryside or park, if you cannot do this go to one with an upstairs and ask to go up...
  14. ZEISS

    6. The LotuTec® Protective Coating

    In addition to the T* anti-reflection coating, a further protective coating is deposited on the outer surface of the lens elements exposed to the weather on all ZEISS binoculars. It ensures that most of the rain water beads-up and drips off, or can be easily shaken off, and that dirt particles...
  15. ZEISS

    5. Light Transmission and Coating

    Although a high quality 8x42 pair of binoculars has the same sized exit pupil as any other 8x42, an observer will notice a significant difference in twilight at dawn and dusk when using the high-quality binoculars. Why is this so? The difference lies in the transmission of light through the...
  16. ZEISS

    4. Robustness in Rough Conditions

    The perfect parallelism of the optical axes of both sides of the binoculars is vital for all settings of the inter-pupillary distance (IPD). If this is not guaranteed, double-images occur sooner or later. Even minor deviations, which are often not noticed because the brain and eyes compensate...
  17. ZEISS

    3. Housings, Focusing and Dioptre Adjustment

    The quality of the mechanical components – particularly the housing and the moving parts – are the guarantee for decades of protection and correct alignment of the optics. Housings ZEISS binocular optical tubes are made from a range of superior materials depending on the model and these range...
  18. ZEISS

    2. Prism Systems

    Prisms are not only responsible for the correct orientation of the image, they play an important and decisive role in the shape of the housing and image quality of binoculars. Two systems are primarily used today: Binoculars with Porro prisms are relatively wide with the objective lenses...
  19. ZEISS

    1. General Optical Design

    Objective lens, focusing lens, image-erecting system and eyepiece – the key elements found in all binoculars for birding and nature observation. Each component has its own special job: The objective lens generates an image of the observed object at the intermediate image plane. This image is...
  20. ZEISS

    8. Distortion

    If there are any straight lines near the edge of the image that appear somewhat curved it is referred to as distortion. Barrel distortion bends the lines outwards; with Pincushion distortion lines are bent inwards. If a pair of binoculars is absolutely distortion-free objects at the edge of the...
  21. ZEISS

    7. Depth of field

    Depth of field describes the area in front of and behind the set range that is still perceived by the eye as being sharp. Expanding this area depends on the magnification, distance and accommodation capabilities of the eye. Left: low depth of field. Only in the set distance, the image appears...
  22. ZEISS

    6. Eye relief

    The exit pupil (the circle of light that carries the image) created by binoculars is located around 15-18 mm behind the eyepiece. This distance from the exit pupil to the top eyepiece lens is referred to as the eye relief. To use the binoculars comfortably, without distracting effects sometimes...
  23. ZEISS

    5. Field of view

    The field of view describes the diameter of the circular view seen when looking through the optics. For example, if you look at the edge of a forest through binoculars at a distance of 1,000 m and see an area that is 120 m in diameter, the binoculars have a field of view of 120 m at 1,000 m...
  24. ZEISS

    4. Twilight factor (TF)

    The twilight factor is often used to compare the suitability of binoculars for use in twilight, when less light is available. The larger the objective lens, the more light enters the binoculars, and the higher the magnification, with the same image brightness, the more details can be observed...
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