Vario Zoom spotting scope eyepiece with water-shedding LotuTec coatings

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The Zeiss Vario zoom eyepiece is the most popular eyepiece with Zeiss spotting scope users. It has field of view that is wider at all powers than competitive spotting scope zoom eyepieces. The sophisticated fully-multicoated seven-element eyepiece bayonets securely into Zeiss 65mm and 85mm spotting scopes and can be changed in seconds. And the image quality is no less than you’d expect from Zeiss . . . absolutely superb.

The external optical surfaces of the eyepiece are treated with permanent “LotuTec" coatings. These special hydrophobic (water-repelling) coatings are so smooth, even at the molecular level, that water can find virtually no grip on the optical surfaces. This causes the condensation from rain, fog, snow, or your own breath to form in much smaller droplets than on standard optical coatings. Smaller droplets scatter less light, resulting in higher light transmission and a clearer image. Oil, dirt, and grease are similarly repelled, making for simplified, streak-free cleaning.

The eyepiece has a pop-up rubber-rimmed eyecup, so you won’t have to worry about a rolldown eyecup deteriorating with age as you do with other eyepieces. A slight twist of the eyecup locks it in place when it is fully extended. It comes with a Cordura-type padded carrying case with a convenient belt loop for no-hands carrying. There are dust covers for both ends of the eyepiece. P>The eyepiece is marked with magnification points for both 65mm and 85mm Zeiss scopes, so there’s never any guesswork about what the magnification might be. The specifications to the right are for the zoom set at its lowest power in a 65mm Zeiss scope.
For use with 65mm Zeiss Diascope spotting scopes . . .
The zoom at 15x has a very wide 168' field at 1000 yards and a factory-specified 16mm of usable eye relief.
At 23x it has a 120' field at 1000 yards and 10mm of usable eye relief.
At 30x it has a 102' field at 1000 yards and 11mm of usable eye relief.
At 45x it has a 78' field at 1000 yards and 12mm of usable eye relief.
For use with 85mm Zeiss Diascope spotting scopes . . .
The zoom at 20x has a wide 129' field at 1000 yards and a factory-specified 16mm of usable eye relief.
At 30x it has a 93' field at 1000 yards and 10mm of usable eye relief.
At 40x it has a 75’ field at 1000 yards and 11mm of usable eye relief.
At 60x it has a 60' field at 1000 yards and 12mm of usable eye relief.

As with any zoom eyepiece, the precise focal length or magnification of the Zeiss zoom at any given point in time is not all that important. The experienced observer invariably adjusts the zoom magnification to match the seeing conditions and object size as he looks through the eyepiece, rather than first setting the zoom to an arbitrary focal length value according to the scale on the side of the eyepiece and using it at that power no matter what the seeing conditions. The flexibility of a zoom to instantly match the magnification to changing lighting or seeing conditions is one of the zoom eyepiece’s chief advantages. Match that flexibility to Zeiss-grade optics and you have an exceptional optical tool for any nature lover.

Power:
15x
Field of view 1000 yards:
168'
Eye Relief:
Eye relief is the distance from the last surface of the eye lens of an eyepiece to the plane behind the eyepiece where all the light rays of the exit pupil come to a focus and the circular image is formed, sometimes called the “Ramsden Disk.” This is where your eye should be positioned to see the full field of view of the eyepiece. If you must wear glasses because of astigmatism, you’ll usually need at least 15mm of eye relief or longer if you want to see the full field of view with your glasses on.

A note on our eye relief figures: Quite often, our eye relief figures will differ from those of the manufacturer. This is because we measure the “usable” eye relief, while the manufacturers specify their usually-longer (but technically correct) “designed” eye relief.

The eye lens of the eyepiece is normally recessed below the rubber eyeguard or rubber rim of the eyepiece to keep the lens from being scratched during use. An eyepiece might have a “designed” eye relief of 15mm (and the eye relief will truly measure 15mm from the eye lens to where the image forms). However, if the eye lens is recessed 3mm below the eye guard, the Ramsden Disk forms only 12mm above the eyepiece body (the 15mm “designed” eye relief, less the 3mm of eye relief made unusable by having the eye lens recessed into the body of the eyepiece). This “usable” eye relief of 12mm (measured from the rolled-down eyeguard – the closest point you can get your eye to the eye lens – to where the image forms) is the eye relief figure we would measure and list in this website.

Why is it important to list the “usable” eye relief? For those people who don’t wear eyeglasses while observing, a few mm difference between the eye relief they expect from the manufacturer’s literature and the shorter eye relief they actually get in real life doesn’t mean a lot. They can simply move a little closer to the eyepiece to see the full field, and never realize that the eye relief is a little shorter than they expected. However, some people must wear eyeglasses while observing, because of severe astigmatism. These observers can’t move closer to the eyepiece if the eye relief is shorter than expected because their glasses get in the way. For these people, the real life “usable” eye relief is more important than the technically correct but sometimes not fully usable “designed” eye relief. We measure and list the actual usable eye relief so that people in the real world can pick the eyepieces that will work best for them.

16mm
Number of optical elements:
7
Weight:
The weight of this product.
11.2 oz.
Warranty:
Limited Lifetime
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Zeiss - Vario Zoom spotting scope eyepiece with water-shedding LotuTec coatings

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Zeiss - Vario Zoom spotting scope eyepiece with water-shedding LotuTec coatings
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Our Product #: ZZLT
Manufacturer Product #: 52 80 67
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MSRP: $699.99
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This Zeiss Vario zoom is the most popular eyepiece with Zeiss spotting scope users. Its field of view is wider than competitive spotting scope zoom eyepieces – and its optics are pure Zeiss . . .





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