
Magnification
8.0
Objective diameter (mm)
42
Field of view at 1000 m (m)
142
Close focus distance (m)
1,5
Waterproofing
Yes
Prism type
Roof
Eyecup type
Adjustable
Eye relief (mm)
19
Exit pupil diameter (mm)
5,3
Interpupillary distance (mm)
56 à 75 mm
Bushnell R7 8x42 binoculars
The Bushnell R7 8x42 embody Bushnell's new very high-end positioning with a particularly interesting combination for ornithology and nature observation: a wide field of vision, ED Prime optics, Field Flattener field correction and magnesium construction.Their 8x magnification favors stability and observation comfort, while the 42 mm objectives maintain excellent versatility in the field.

Highlights of the Bushnell R7 8x42
- Field of view from 142 m to 1000 m: very comfortable for quickly spotting a bird, tracking an animal or exploring a large area.
- Field Flattener: optical correction intended to maintain greater sharpness all the way to the periphery of the image.
- ED Prime glass: improves contrast, color reproduction and control of chromatic aberrations.
- 5.3 mm exit pupil: favorable to visual comfort and observations when the light decreases.
- Magnesium chassis: rigid and high-end construction for a weight of 770 g.
- Three sets of interchangeable eyecups: adaptation of comfort to the user, particularly with or without glasses.
An 8x42 designed for immersion
The 8x magnification constitutes a reference for observing nature.It allows you to distinguish distant details while remaining more stable handheld than 10x or 12x magnification.On the R7, this format mainly benefits from a particularly wide field from 142 m to 1,000 m.
This width makes it easier to locate a bird in the branches, follow a moving animal or explore a landscape.It also reduces the feeling of looking through a narrow tube.
Sharpness worked to the edges
Technology Field Flattener aims to correct the field curvature.On a classic binocular, the image may be perfectly sharp in the center but progressively less sharp towards the edges.The R7 uses corrective elements intended to maintain a more homogeneous image over a larger part of the field.
For the observer, this means that it is possible to naturally explore the entire scene without having to constantly refocus the subject to find the best sharpness.

ED Prime and premium optical system
The glass ED Prime allows better control of chromatic aberrations.The benefit becomes particularly visible on contrasting contours: black and white plumage, a branch in front of a clear sky or a silhouette on a ridge line.
Schmidt-Pechan prisms made of BaK-4 glass benefit from a dielectric coating and PC-3 phase correction.The optical surfaces receive Fully Multi-Coated and Ultra Wide Band treatments intended to optimize light transmission and contrast.
Comfort and low light
With an exit pupil of approximately 5.3mm, the R7 8x42 offer comfortable eye placement and maintain real interest at dawn, in the forest or at the end of the day.
The 19mm eye relief is also favorable for eyeglass wearers.Bushnell provides three sets of interchangeable eyecups to adapt eye position and better control sidelight.

For what uses?
The Bushnell R7 8x42 is particularly suitable for ornithology, nature observation, safari, hunting in wooded areas, wetlands and naturalist hiking.
This is the R7 model to favor when the field, handheld stability and observation comfort come before the search for maximum magnification.
Technical characteristics
| Brand | Bushnell |
|---|---|
| Range | R7 |
| Magnification | 8x |
| Objective diameter | 42mm |
| Field of view at 1000 m | 142m |
| Exit pupil | 5.3mm |
| Eye relief | 19mm |
| Minimum focus | About 1.5m |
| Optical glass | ED Prime Glass |
| Field correction | Field Flattener |
| Prisms | Schmidt-Pechan BaK-4 |
| Treatment of prisms | Dielectric |
| Phase correction | PC-3 |
| Optical treatments | Fully Multi-Coated, Ultra Wide Band |
| Lens protection | EXO Barrier® |
| Eyecups | Three interchangeable games |
| Diopter adjustment | Lockable |
| Chassis | Magnesium alloy, open bridge |
| Waterproofing | IPX7 |
| Anti-fog | Nitrogen purge |
| Tripod compatible | Yes |
| Length | 149mm |
| Weight | 770g |
| Color | Ranger Green |
| Warranty | Bushnell lifetime warranty according to manufacturer's conditions |
Contents of the box
- Bushnell R7 8x42 binoculars
- Three sets of interchangeable eyecups
- Vault Lite Lap Harness
- Neck strap
- Lens protections
- Eyepiece protection
- Cleaning cloth
The Bushnell R7 8x42 are the R7 to favor for immersive, stable and comfortable observation.Their large field, their ED Prime glass and their Field Flattener system make them a very high-end configuration that is particularly consistent for ornithology.