Vixen | Producer of optics from astronomical telescopes and binoculars
Vixen Spotting Scopes Geoma III ED80 Zoom M-174 Tripod Set
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Suggested retail price: Contact local dealer
- JAN
- 4955295181148
High-performance Field Scope Equipped with an ED Lens. Smartphone Adapter and Tripod Set.
With an ED (Extra-low Dispersion glass) lens, it achieves a field of view with extremely low chromatic aberration and excellent contrast.
With the dual focus ring, fine focusing is easy. It comes with a smartphone camera adapter and a tripod. This allows you to easily enjoy photography with your existing smartphone.
Vixen Spotting Scopes Geoma III ED80 Zoom M-174 Tripod Set Description
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ED Lens Suppressing Chromatic Aberration
In optical instruments that gather light using lenses, "color bleeding (chromatic aberration)" occurs due to the difference in refractive index depending on the wavelength (color) of light. Since chromatic aberration cannot be corrected with a single lens, it is corrected using two or more lenses with different properties. The effectiveness of this correction also varies depending on the material of the lenses used.
Therefore, in the objective lens of the Geom III ED80 ZOOM, which is composed of two lenses, an ED glass lens (Extra-low Dispersion glass) is adopted as one of the elements. Chromatic aberration is efficiently corrected by combining this ED lens with another lens that has compatible properties.
This suppresses chromatic aberration to an extremely high level, achieving remarkably sharp depiction. -
High-contrast and clear field of view with PFM5 coating.
"PFM5 coating (Perfect Fully Multi-Coated - Five Coat)" is applied with "5 layers of anti-reflection multi-coating on all optical surfaces" of the lenses. Compared to PFM coating (Fully Multi-Coated), which has 3 layers of multi-coating applied to all optical surfaces of the lenses, this "results in less light loss". This achieves a "brighter field of view and excellent contrast".
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20-60x Zoom Lens (Parfocal Specification)
This is a zoom lens specification that allows for stepless magnification changes from 20x to 60x. Additionally, it features a parfocal design, meaning the focus position remains nearly the same even when changing magnification. Once focused, there is almost no need to refocus even when changing the magnification, allowing you to concentrate on observation.
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Eyepiece Designed for Ease of Viewing
It features a high eye point design (eye relief 20-18mm), that allows you to view the field of view comfortably without pressing the eyepiece strongly against your eye,. Furthermore, it utilizes a large diameter eyepiece of 24mm,and employs twist-up eyecups whose height can be changed by turning them with your finger. This design helps reduce eye fatigue even during extended observation. You can view a wide field of view whether you are using it bare-eyed or wearing eyeglasses.
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Dual Focus Focusing Ring
Equipped with a dual focus focusing ring that allows focusing at two speeds: coarse and fine (with a reduction ratio of 1:9). After quickly focusing with the coarse adjustment, the focus position can be precisely fine-tuned with the fine adjustment. This makes precise focusing very smooth for observing details like bird feathers or for photography.
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45° Inclined Type
The eyepiece is angled 45 degrees relative to the scope body. This allows you to observe in a comfortable posture, whether observing while seated for extended periods or observing objects at high positions.
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Smartphone Photography
A smartphone camera adapter is included as standard equipment. It is compatible with most models of commercially available smartphones and camera-equipped mobile phones, allowing you to easily enjoy photography.
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Optical Tube Rotation Mechanism
The optical tube can be rotated left and right around the optical axis. This allows the eyepiece (the viewing part) to be moved to an easy-to-view position, and also makes image rotation for photography very smooth.
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Tripod Seat
The tripod seat is equipped with a 1/4 inch screw (camera screw, with video boss hole), allowing it to be mounted on 1/4 inch standard camera tripods (sold separately, commercially available).
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Reliable Waterproof Design for Outdoor Use
The tripod seat is equipped with a 1/4 inch screw (camera screw, with video boss hole), allowing it to be mounted on 1/4 inch standard camera tripods (sold separately, commercially available).
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Stay-On Case Included
A protective case that can be used while the field scope body is mounted on a tripod is included as standard equipment. A shoulder strap is also included, making it very convenient for carrying. The shoulder strap is detachable and can be removed if you are concerned about the effect of wind. The length can also be adjusted.
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Includes an easy-to-use tripod
This model comes standard with a tripod featuring a fluid head, bringing smooth operability to your field scope observation and photography. You can pan and tilt smoothly and stress-free, even when tracking the fast movements of wild birds and animals.
Specifications
Body
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Type45° tilt type
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Objective Lens Effective Aperture80mm
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Kind of EyepiecesED lens
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Optical CoatingsPFM5 Coat
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Near FocusApproximately 5.5m
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Eyepiece・PowerZoom lens: 20 to 60 times
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Eye-relief20～18mm
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Actual Field of View2.1～1.1°
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Apparent Field of View*40.3～59.9°
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Apparent FoV (Former JIS Standard)42.0～66.0°
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Field at 1000m37～19m
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Exit Pupil4.0～1.3mm
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Brightness16.0～1.7
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WaterproofWaterproof with nitrogen gas filling (equivalent to IPX6: main body)
*: Conformity with JIS B7157:2002
Tripod
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Tripod SpecificationsAluminum 4-section telescopic leg lock (lever type), total pipe diameter 26mm
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Height (from Ground)58-174cm (at minimum leg spread)
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Lowest Height (Low Position)Approximately 24 cm (when using the short center column and legs are fully spread)
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Center Column/TravelRapid type
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Shortened LengthApproximately 520mm
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Screw ThreadUNC 1/4
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Loading WeightApproximately 6 kg
Others
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Main AccessoriesSmartphone Camera Adapter, Stay-On Case
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Dimensions WxDxH400×96×180mm
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Weight1,610g (Body + Eyepiece)