
VORTEX
Vortex Diamondback HD 20-60x85 Spotting Scope - Angled
or 3 x 166,39 € interest-free
Magnification
Magnification
60.0
Objective diameter (mm)
85
Field of view at 1000 m (m)
36 à 20 m à 1 000 m
Close focus distance (m)
7,5
Waterproofing
Oui
Weight (kg)
1.73
Eyecup type
Réglables
Eye relief (mm)
18,3 à 20,3 mm
Exit pupil diameter (mm)
4,25 mm (20x) à 1,42 mm (60x)
The Vortex Diamondback HD 20-60x85 angled spotting scope combines an 85mm objective lens, a 20x to 60x zoom and a rugged, waterproof, argon-purged construction. It is aimed at the observer who wants a strong long-distance observation capacity, for ornithology, wildlife, hunting or sports shooting, without reaching the price of the higher Vortex ranges.
An 85mm Vortex spotting scope for long-distance observation
The Diamondback HD 20-60x85 is the large diameter version of the Diamondback HD range.Its role is clear: to offer an extended magnification range, a bright objective and a construction designed for regular outdoor use, in a more accessible positioning than the Viper HD and Razor HD spotting scopes.
However, it must be seen honestly.The Diamondback HD is not the optical equivalent of a Viper HD or a Razor HD, and it does not offer the same rendering at 60x as these higher ranges.Its interest lies elsewhere: Obtaining real observation capacity thanks to an 85 mm objective and a versatile zoom, with the robustness and the Vortex guarantee, for a controlled budget.

Understanding 20-60x Zoom: Maximum Magnification Is Not Everything
A spotting scope should not be judged solely on its maximum magnification.The more you magnify, the darker the image, the more the field becomes smaller and the more vibrations and turbulence in the air become visible.In practice, the best setting is the one that gives the most readable image under the current conditions, and this is not always 60x.
The exit pupil, a brightness indicator
The exit pupil is calculated by dividing the objective lens diameter by the magnification.The larger it is, the brighter and more comfortable the image appears.On this 20-60x85 spotting scope, it goes from 4.25 mm at 20x (85 ÷ 20) to approximately 1.42 mm at 60x.
Actual zoom behavior, setting by setting
| Magnification | Main use | Image behavior | Exit pupil |
|---|---|---|---|
| 20x | Spotting, scanning an area, general observation | Brightest image, widest field, easy identification | 4.25mm |
| 30x | Common observation | Good balance between detail and field of view | ≈ 2.83mm |
| 40x | Detailed observation at medium and long distances | Tripod stability becomes more important | ≈ 2.13mm |
| 50x | Finding fine details at long distances | More dependent on light and atmosphere | 1.70mm |
| 60x | Maximum magnification, fine examination | To be reserved for good conditions of light, stability and atmosphere | ≈ 1.42mm |
In practice:
- At 20x, the image is bright and the field wide (approximately 36 m to 1000 m): this is the ideal setting for finding a bird, following an animal or scanning a slope.
- Between 30x and 40x, the spotting scope generally offers the most versatile compromise between detail, brightness and stability.This is the beach that we use most often.
- Between 50x and 60x, the potential level of detail increases, but the image becomes more sensitive to vibrations, fading light and atmospheric turbulence.On a hot day or late in the day, going down to 40x often results in a sharper, more usable image.
The benefit of an 85mm lens
The 85mm lens collects more light than a 65mm model with comparable optical design.This advantage is mainly felt:
- At high magnifications, where the exit pupil becomes smaller and every millimeter of diameter counts;
- When the light fades, at dawn, dusk or on overcast days.
The counterpart is physical: with approximately 1.73 kg and 40.6 cm in length, this 85 mm spotting scope is neither compact nor ultralight.It is suitable for the user who agrees to carry a larger optic in exchange for a large diameter objective, and who most often observes from a fixed position or near his vehicle.
Why choose an angled spotting scope?
On this version, the eyepiece is inclined relative to the body of the spotting scope.This elbow construction has several advantages:
- A more comfortable viewing position during long sessions;
- A tripod placed lower, therefore more stable, especially in the wind;
- Easy sharing between users of different heights, without readjusting the tripod height each time;
- A particular interest in ornithology, on the lookout and from a fixed position, as well as to observe subjects located at height.
A user who wants to very quickly acquire a target in line with their gaze, or who observes primarily from a car window, may sometimes prefer a straight version.
A stable tripod, essential for high magnifications
A stable tripod is strongly recommended, and in practice becomes essential to correctly exploit high magnifications. The tripod is not included with the spotting scope.
- At 20x, the observation remains relatively tolerant to small movements.
- Around 40x, the vibrations become much more visible: the slightest contact or gust of wind is seen in the image.
- At 60x, the quality and rigidity of the tripod directly influence the actually perceptible finesse.
The Diamondback HD 20-60x85 is Arca-Swiss compatible : it mounts directly on a compatible head, without additional plate.
Optical system: HD Optical System, Fully Multi-Coated and ArmorTek®
HD Optical System
Vortex uses selected glass elements to improve resolution, color fidelity, sharpness and control of chromatic aberrations (colored fringing on contrasting edges).
Fully Multi-Coated Treatments
All air-to-glass surfaces receive multiple layers of anti-reflective treatment.They limit light loss and parasitic reflections, benefiting light transmission and contrast.
ArmorTek® coating
The exposed outer lenses receive this very resistant coating, intended to protect them against scratches, greasy marks and dirt.

Helical Focus Helical Focus
Focusing does not happen through a small side wheel, but through a large helical ring which surrounds the body of the telescope.You turn it to sharpen it, with one hand, without looking for the control.
- Intuitive handling ;
- Easily accessible adjustment whatever the orientation of the telescope on its tripod;
- A sleek exterior profile ;
- No protruding dial likely to get caught in a bag or cover during transport.
Robust construction for regular outdoor use
- Argon purge : the interior is filled with argon gas, which prevents internal fogging during temperature changes.
- Seals : they protect the interior against humidity, rain and dust.
- Water resistance : The spotting scope is designed to be used in the rain or in a humid environment.No depth or duration of immersion being officially indicated, this tightness should not be considered as authorization for prolonged immersion.
- Shock resistance : the design supports the constraints of regular use in the field.
- Rubber frame : it improves grip and protects the body against shocks and friction.
Uses of the Vortex Diamondback HD 20-60x85 spotting scope
Ornithology and bird watching
Observation of waders and ducks on the mudflats, birds of prey on their perches, remote identification without disturbing the birds.The angled construction and the 85 mm objective lens are particularly useful during long sessions in an observatory or at the edge of a pond.
Wildlife and nature observation
Tracking of deer, chamois, ibexes or foxes at long distances, observation of behavior without approach.
Hunting and blind
Remote assessment of an animal, monitoring of an area from a watchtower or a fixed position.The 20x is used for scanning, the intermediate magnifications for detailed examination.
Mountain, from an observation post
Prospecting slopes and ridges from a fixed point.Its weight makes it more suitable for use from a position than for long approach marches.
Coastal and long-range observation
Seabirds, ships, landscapes.By the sea, argon purging and waterproofing are appreciable, but the heat haze and humid air often limit the benefit of very high magnifications.
Twilight observation
The 85mm objective lens makes observing in fading light easier, preferably at low to intermediate magnifications, where the exit pupil is largest.
Sports shooting and impact control
The spotting scope allows you to monitor impacts on targets without leaving your position, when the distance, the size of the impacts and the atmospheric conditions allow it.No precise distance can be guaranteed: visibility of impacts depends on caliber, impact diameter, target contrast, light and atmospheric turbulence.In hot weather, mirage can make impacts difficult to distinguish.

Diamondback HD 20-60x85 or 16-48x65?
The two spotting scopes in the Diamondback HD range meet different needs, without one being better than the other.
The Diamondback HD 20-60x85
- Favors brightness thanks to its 85 mm lens;
- Allows magnification up to 60x;
- Is better suited to long distance observation;
- Is heavier and more bulky.
- Is easier to transport;
- Is less heavy;
- Suitable for the more mobile user;
- Offers a smaller diameter and maximum magnification.
In summary: fixed position and long distances, the 85 mm;frequent travel and walking, the 65 mm.
Technical characteristics
| Brand | Vortex |
| Range | Diamondback HD |
| Manufacturer reference | DS-85A |
| Type | Angled zoom land scope |
| Magnification | 20x to 60x |
| Lens Diameter | 85mm |
| Construction | cubit |
| Optical system | HD Optical System |
| Lens processing | Fully Multi-Coated |
| Outer lens protection | ArmorTek® |
| Exit pupil | 4.25mm (20x) to 1.42mm (60x) |
| Eye relief | 18.3 to 20.3 mm |
| Angular field | 2.1° to 1.1° |
| Field of view | 108 to 60 ft at 1,000 yards (approximately 36 to 20 m at 1,000 m) |
| Minimum focusing distance | 24.6 ft (approximately 7.5 m) |
| Focus | Helical Focus |
| Exterior covering | Rubber frame |
| Purge | Argon |
| Waterproof | Yes |
| Anti-fog | Yes |
| Shock resistant | Yes |
| Tripod compatible | Yes |
| Arca-Swiss compatible | Yes, direct mount |
| Length | 16 inches (approximately 40.6 cm) |
| Weight | 60.9 oz (approximately 1.73 kg) |
Contents of the box
- 1 Vortex Diamondback HD 20-60x85 angled spotting scope
- 1 neoprene cover
- 1 captive lens cap
- 1 captive eyepiece cap
- 1 lens cloth
Tripod not included.
Compatible accessories (sold separately)
- Vortex Pro Car Window Mount
- Vortex Car Window Mount
- Padded Spotting Scope Storage Case
- Arca-Swiss compatible tripods and heads
These accessories are not supplied with the spotting scope.
Vortex VIP Guarantee
The Vortex Diamondback HD 20-60x85 spotting scope benefits from the Vortex VIP lifetime warranty, according to the conditions defined and applied by the manufacturer.