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Delta Optical Extreme 10.5×70 ED

397,80 EUR
489,30 EUR incl. VAT

Top advantages
ED optics ? perfect correction of chromatic aberration
Fully flat field, wide angle optical system
Individual focus adjustment
Extremely rugged and durable
Suprisingly bright and high contrast of image in its class

In stock

SKU: DO-1602 Categories: , Tag: Brand:

Description

All the binoculars of the Extreme series are massive instruments with uncompromising optical solutions used. The best optical properties supported by solid mechanics were the priority for their design. Hence the porro prism construction and the presence of the low-dispersion optical elements and solid prisms made of high quality BaK-4 glass. Thanks to powerful prisms you do not have to worry about vignetting and darkening of the image at the edge of the field of view. In addition, Extreme binoculars use anti-reflection coatings (FMC), which cover all the optical elements. They provide more than 90 percent light transmission throughout the system. Bodies of all the Extreme binoculars models are made of durable metal and coated with a special rubber veneer. Of course the Extreme binoculars are water-proof. DO Extreme binoculars have individual focusing system.

Technical data
Magnification [x]: 10.5
Objective lens diameter [mm]: 70
Optical coating: FMC
Objective lens material: ED glass
Twilight factor: 22.7
Relative brightness: 44.9
Exit pupil diameter [mm]: 6.7
Eye relief [mm]: 18
Interpupillary distance adjustment [mm]: 54 – 73
Angular field of view [? degrees]: 5
Linear field of view at 100 m [m]: 87
Shortest focusing distance [m]: 10
Dioptre adjustment [D]: -/+5
Prism system: Porro
Prism material: BaK4
Waterproof: Yes
Nitrogen filling: Yes
Tripod mounting: Adapter ?”
Length x width x height [mm]: 280x228x87
Weight [g]: 2 400
Accessories: – aluminium case
– strap
– optics cleaning material
– caps for apart lenses and eyepieces