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Use of binoculars for spectacle wearers

Binoculars for spectacle wearers
What for Spectacle wearer to consider when buying binoculars! Half of the European population wear glasses either temporarily or permanently. Looking through binoculars with glasses reduces the Field of vision around 50-60%. For short-sightedness or long-sightedness, a Eyepiece with dioptre compensation. If you wear glasses, you should therefore make sure when buying binoculars that these [...]

Dioptre correction for spectacle wearers with binoculars

Dioptre correction binoculars
Dioptre correction for Spectacle wearer with different visual acuity The dioptre correction on the eyepiece is used to compensate for differences in visual acuity between the eyes. Dioptre adjustment of binoculars Many people have differences in the visual acuity of both eyes. For this reason, binoculars with two identical eyepieces with adjustment options are used to achieve a uniformly sharp image of the object (the differences between the two eyes [...]).

Function of the eye - adaptation to light and darkness

Eye function
The function of dark adaptation and light adaptation of light or on the retina in the eye The retina of our eyes has two different types of light receptors Sensory cells or receptors, on the one hand the cones (for day vision) and on the other the rods (for night vision). All photoreceptors are stimulated by the amount and spectrum of radiation. The cones are more sensitive to light [...]

Binoculars with retractable eyecups ideal for spectacle wearers

Retractable eyecup
Binoculars with adjustable Eyecups - Ideal for Spectacle wearer For spectacle wearers, all DDoptics binoculars are equipped with retractable eyecups. This facilitates observation and enlarges the field of view. To achieve the optimum Interpupillary distance To ensure that you can enjoy your binoculars even when wearing glasses, we have equipped your binoculars with retractable eyecups. The eyecups are extended or retracted by simply turning the [...]

Eyepiece for binoculars and riflescope

Eyepieces for optics
Functionality of eyepieces in optical devices - binoculars and optical sights The Eyepiece is the lens group of an optic that corresponds to the Eye is facing the eyepiece. The eyepieces consist of several separate Lenses - of achromats (3-6 individual lenses). The task of the eyepiece is to capture the image produced by the Lens generated by the Prisms to enlarge the erected image. If the focus is correctly set (focussed), the [...]

Adjustment

Adjustment for optics
Adjustment is the precise Fine tuning between mechanics and optics The adjustment of binoculars refers to the parallel alignment of the two halves of the binoculars. If binoculars are knocked hard or fall to the ground, for example, the prisms are displaced and the Glass is misaligned. Consequence of misalignment in binoculars When observing through a misaligned binocular model, the observer [...]

Binoculars waterproof or water pressure-tight

Waterproof binoculars
All DDoptics binoculars are guaranteed Water pressure-tight! The waterproofness of optics is guaranteed by DDoptics for 30 years! High-quality riflescopes and binoculars are equipped with extremely precise mechanics. Therefore, no dust or moisture may get inside. If the binoculars or other optical devices are not waterproof, there is a risk of fogging. As fogged up Lenses, [...]

Rifle scope

Shot resistance for riflescopes
The Shot resistance of a target optic Whether a target optic is bulletproof is one of the most important criteria when selecting a riflescope - especially for powerful calibres. Considerable forces act on the riflescope when a shot is fired. Riflescopes are described as bulletproof if they can withstand these forces without any damage to the housing, mechanics or Reticle any changes. [...]

Light transmittance or transmission for glass

Light transmission Optics
Light transmission in optical glass Light transmission is the ability of optical glass or optical systems to "let through" as many light rays as possible. With a good or fast riflescope, the Light transmission be greater than 90 per cent. The transmission performance or transmission loss of optical devices, such as binoculars and riflescopes, etc., depends heavily on the optical coating of the lens. Prisms resp. Lenses from. Another important factor for the level of transmission losses, [...]

Optics Glass types for optical devices

Glass types for optics
Influences of different glass qualities such as BK7 or BAK4 in binoculars and riflescopes The glass quality or type of glass is, in addition to the Coating of optics is one of the most important quality factors in binoculars and riflescopes The optical system of binoculars is made up of glass lenses or, in the case of cheap optics, plastic lenses. A manufacturer can choose from many different Glass types (qualities). ED Glass Extra Low Dispersion glass is a special glass with very low [...]

Eye relief for binoculars

Eye relief for binoculars
Eye relief for binoculars is also known as the interpupillary distance! The interpupillary distance refers to the optimum distance between the eyepiece lens and the pupil of the eye. With riflescopes, it is a question of trying out what is most comfortable for you. Most binoculars, as well as all DDoptics models, have so-called retractable eyepieces. Eyecupswhich can be used to set the optimum interpupillary distance. Interpupillary distance [...]

Coatings and coatings for optics - Coating or Multi Coated

Compensation for optics
Influence of the optical coating and Coating on the quality of binoculars and riflescopes The coating of the optical components has a high influence on the optical quality and, of course, on the price of an optic (binoculars or riflescope). Lenses. The big differences between good and cheap binoculars are particularly visible here - especially in terms of brightness and contrast. Uncoated Glass reflects (mirrors) approx. 4% of the light via glass-to-air transition. A Lens [...]
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