Category Archives: Wiki

Lens

Lens for binoculars
Lenses of binoculars Is used via the Lens of binoculars, the front lens is meant. The front lens is the foremost Lens of the lens. Lens diameter Formally speaking, a lens is a lens system. An objective lens is therefore often meant when talking about a lens. The objective lens of binoculars collects the light over a larger area than the Eye can. This makes the binoculars [...]

Prism types for binoculars

Prisms for binoculars
Prisms and prism types in binoculars Lenses have the property of displaying objects upside down and laterally inverted - therefore the image must be rotated again. The image created in this way is first straightened up again by the prisms and displayed upside down. Either so-called porro prisms or roof prisms are used for this purpose. Porro prisms give the entire binoculars their characteristic angled shape, while roof prisms give the binoculars a slim design. Binocular prisms [...]

Mini binoculars - Pocket binoculars

Mini binoculars and pocket binoculars
Mini binoculars - small for every pocket Pocket binoculars are often referred to as mini binoculars or mini binoculars. pocket Binoculars are usually binoculars of the smallest design. Ideally, they are foldable binoculars that have a slim roof edge shape. Binoculars DDoptics EDX 10x30 Fieldstar Binoculars for the handbag should be packed in a bag for weight reasons. Lens diameter of approx. 25mm and ideally with a magnification of 8x or up to a maximum of 10x (watch out for shaking) [...].

Porro Prism

Definition Porro Prism
The Porro Binoculars - Binoculars with porro prisms Binoculars with porro prisms are the true universal binoculars. The typically larger Lens diameter (35mm or more), usually in combination with an 8x magnification or even 10x Enlargementoffer brighter images with higher contrast. For this reason, optics with Porro prisms are ideal as: Binoculars for sporting events Marine binoculars Optics for long-range wildlife observation and hunting or [...]

Roof prism

Types of roof prism
Roof-edge binoculars or binoculars with Roof prisms In the field of professional binoculars, such as hunting binoculars, you often (unfortunately) only find roof-edged binoculars. The essential Difference The roof edge of the Porro system is where one of the reflective surfaces resembles the roof of a house (see image below). These roof edge binoculars contain objectives with at least 35mm objective lens diameter and are designed for advanced applications, e.g. for professional wildlife and nature observation even in unfavourable lighting conditions [...].

Image field curvature - Flattener lenses

Image field curvature - Flattener lenses
Image field curvature or aberration in optics The image produced by a lens objective has a spherical aberration by nature. This is known as image field curvature or aberration. Depending on the quality of the binoculars, this results in a more or less pronounced blurring of the image towards the edge. Flattener Lenses for error correction This error can be corrected by appropriate optical elements - one then speaks of a [...]

The DDoptics fibre optic riflescope illuminated dot II

Light point 2
Advantages of the riflescope illuminated reticle with Luminous point II The Light point II was developed by DDoptics in Dresden. This new generation illuminated dot II is installed exclusively and in all optical sights offered by DDoptics. New: The optional, intelligent additional control  IFiber from DDoptics. DDoptics illuminated dot 2 Unfortunately, fine details such as the light unit are often skimped on. And this has far-reaching consequences! Not so with DDoptics. The illuminated dot II [...]

Binoculars - construction and prisms

Construction of binoculars - prism systems
The different types of DDoptics binoculars Binoculars can be divided into two main types according to their basic construction: Construction with Roof edge prism (various construction forms) or with Porro Prism. Binoculars Prisms Systems Both designs have their unique advantages and disadvantages. In principle, Porro and roof edge binoculars can be used depending on the Glass types (BAK 4, Crown glassetc.), remuneration expense and production quality offer the same performance. The details [...]

Riflescope reticle and illuminated reticle for target optics

Reticle and illuminated dot for riflescopes
Different Reticle for riflescopes DDoptics uses the following 3 reticles for its riflescopes, depending on the target optics: Reticle 4 with Light point from DDoptics reticle 4 ILU with Luminous point II or IFiber Most hunters who choose a reticle with illuminated dot opt for this reticle 4. The illuminated dot is switched on in the dark. A light source shines through the built-in Glass fibre. Fine [...]

What you should look out for in the illuminated dot of your optical sight

The correct Red Dot illuminated dot for riflescopes
How to recognise the quality of the illuminated reticle on riflescopes! The choice of reticle and the associated function of the illuminated dot is of crucial importance when making a purchase. At this point, we would like to give you some tips on what you should pay attention to when choosing the reticle and the illuminated dot and why! 1. is the Light point really infinitely dimmable by 100%? Or is [...]

Parallax error and parallax compensation

Parallax adjustment on riflescope
Explanation and function of the parallax compensation A shooter does not look "straight" but "diagonally" through the Eyepiecea target error occurs - the so-called Parallax. Parallax error in riflescopes The reason for this is the positioning of the eye outside the straight line that runs from the reticle centre to the target - the optical axis and visual axis are shifted against each other. This subsequently leads to incorrect [...]

The reticle in the first focal plane of riflescopes

Reticle first image plane for target optics
The Reticle in the 1st image plane for riflescopes When the reticle is in the 1st focal plane, the reticle simply enlarges with the magnification adjustment. The image of the object created in the 1st image plane is magnified in the second image plane shown. This means that the bar spacing remains the same. Advantage: Easily recognisable bars in the reticle. However, as these - especially at high Magnification [...]
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