Harpers Photographic

The new 10x50 LDT binoculars are a must have for the bird-watching enthusiast who demands the maximum light transmission for those dawn & dusk observation opportunities! A fully multi-coated optical system and BaK4 prisms provide good light transmission and clarity. Long eye relief and deluxe twist-out eyecups provide observation convenience for those that wear eyeglasses. Its thick grooved rubber armour cover provides great impact resistance during active use. Nitrogen charged and O-ring sealed, the LDT binoculars are 100% fog proof and waterproof. The ergonomic body design and large focus wheel provide comfort during observation and effortless focusing. The streamline design, light weight, and good capability of these binoculars guarantee an excellent birding experience.

Specification

Magnification
10x
(Maximum magnification)
Objective
50mm
(Size of objective lens.)
Close Focus
4m
(Minimum distance that the binoculars will focus on)
View 1000m
91mm
(Apparent view at 1000m)
Weight
788g
(Weight in grams)
Glass
BAK-4
(Type of glass used in construction)
Exit pupil
5.00mm
(Exit pupil in mm)
Twilight rate
22.3
(Light gathering ability)
Brightness
25.0
(Light transmission factor)
Waterproof
Yes
(Immersion tested 1m for 60sec)
Lens Coating FMC
Yes
(Fully multicoated optics)
Tripod Bush
Yes
(Tripod bush for tripod/adapter)
Dimensions
180x135mm
(Binocular size in mm)
Roof Prism Construction
Yes
(Optical Type)
Eye Relief
17.0mm
(Eye relief in mm)