What for Spectacle wearerLooking through binoculars with glasses reduces the field of view by 50-60%. An eyepiece with dioptre compensation offers a remedy for short-sightedness or long-sightedness. " More info 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 visionThe size of the field of view indicates the width of the terrain that can be observed through the binoculars at a distance of 1000 metres. " More info around 50-60%. For short-sightedness or long-sightedness, a EyepieceThe eyepiece is the lens group of an optical system that faces the eye. The eyepieces consist of several separate lenses - achromats (3-6 individual lenses). " More info with dioptre compensation. If you wear glasses, you should therefore make sure when buying binoculars that these [...]
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Dioptre correctionThe dioptre correction on the eyepiece is used to compensate for different visual acuities of the eyes. " More info for Spectacle wearerLooking through binoculars with glasses reduces the field of view by 50-60%. An eyepiece with dioptre compensation offers a remedy for short-sightedness or long-sightedness. " More info 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 [...]).
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 cellsThe retina of our eyes has two different types of sensory cells or receptors, the cones (for day vision) and the rods (for night vision). " More info 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 adjustable EyecupsFor spectacle wearers, all DDoptics binoculars are equipped with retractable eyecups. This makes observation easier and enlarges the field of vision. " More info - Ideal for Spectacle wearerLooking through binoculars with glasses reduces the field of view by 50-60%. An eyepiece with dioptre compensation offers a remedy for short-sightedness or long-sightedness. " More info 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 distanceThe interpupillary distance is the optimum distance between the eyepiece lens and the pupil of the eye. " More info 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 [...]
Functionality of eyepieces in optical devices - binoculars and optical sights The EyepieceThe eyepiece is the lens group of an optical system that faces the eye. The eyepieces consist of several separate lenses - achromats (3-6 individual lenses). " More info is the lens group of an optic that corresponds to the EyeThe retina of our eyes has two different types of sensory cells or receptors, the cones (for day vision) and the rods (for night vision). " More info is facing the eyepiece. The eyepieces consist of several separate LensesThe use of aspherical lenses leads to a reduction in the overall length of the binoculars and in some cases to a significant reduction in weight. " More info - of achromats (3-6 individual lenses). The task of the eyepiece is to capture the image produced by the LensWhen we talk about the objective lens of binoculars, we mean the front lens. The front lens is the foremost lens of the objective. " More info generated by the PrismsLenses have the property of imaging objects upside down and laterally inverted - therefore the image must be rotated again. " More info to enlarge the erected image. If the focus is correctly set (focussed), the [...]
Adjustment is the precise Fine tuningAlignment in binoculars refers to the parallel alignment of the two halves of the binoculars. " More info 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 GlassIn addition to the coating of optics, the glass quality or type of glass is one of the most important quality factors for binoculars and riflescopes " More info is misaligned. Consequence of misalignment in binoculars When observing through a misaligned binocular model, the observer [...]
All DDoptics binoculars are guaranteed Water pressure-tightWith a watertight lens, a clean and dry gas filling in the form of an argon or nitrogen filling creates an "internal climate" that prevents fogging. " More info! 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 LensesThe use of aspherical lenses leads to a reduction in the overall length of the binoculars and in some cases to a significant reduction in weight. " More info, [...]
The Shot resistanceWhether a target optic is bulletproof is one of the most important criteria when selecting a riflescope - especially for powerful calibres. " More info 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 ReticleDifferent reticles for riflescopes. DDoptics uses the following 3 reticles for its riflescopes, depending on the target optics: " More info any changes. [...]
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 transmissionLight transmission is the ability of optical glass or optical systems to "let through" as many light rays as possible. " More info 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. PrismsLenses have the property of imaging objects upside down and laterally inverted - therefore the image must be rotated again. " More info resp. LensesThe use of aspherical lenses leads to a reduction in the overall length of the binoculars and in some cases to a significant reduction in weight. " More info from. Another important factor for the level of transmission losses, [...]
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 CoatingIf light hits a glass-air surface (e.g. with a roof prism), the reflection causes a loss of light. " More info 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 typesIn addition to the coating of optics, the glass quality or type of glass is one of the most important quality factors for binoculars and riflescopes " More info (qualities). ED GlassED glass effectively compensates for chromatic aberration (chromatic aberration = different coloured parts of a light beam are refracted to different degrees - can be clearly seen as a colour fringe along edges) " More info Extra Low Dispersion glass is a special glass with very low [...]
Eye relief for binocularsThe interpupillary distance is the optimum distance between the eyepiece lens and the pupil of the eye. " More info 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. EyecupsFor spectacle wearers, all DDoptics binoculars are equipped with retractable eyecups. This makes observation easier and enlarges the field of vision. " More infowhich can be used to set the optimum interpupillary distance. Interpupillary distance [...]
Influence of the optical coating and CoatingIf light hits a glass-air surface (e.g. with a roof prism), the reflection causes a loss of light. " More info 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). LensesThe use of aspherical lenses leads to a reduction in the overall length of the binoculars and in some cases to a significant reduction in weight. " More info. The big differences between good and cheap binoculars are particularly visible here - especially in terms of brightness and contrast. Uncoated GlassIn addition to the coating of optics, the glass quality or type of glass is one of the most important quality factors for binoculars and riflescopes " More info reflects (mirrors) approx. 4% of the light via glass-to-air transition. A LensWhen we talk about the objective lens of binoculars, we mean the front lens. The front lens is the foremost lens of the objective. " More info [...]