A telescopic sight, called a scope is a device used to provide additional information with a target point for weapons like guns, compressed air and crossbows.
The cards are ranked according to the magnification and the objective lens, for example, 10 × 50. This means 10 times magnification with a 50mm lens. In general, are larger diameter lens (more light and give a wider field of vision), increasedPower should be elected on the basis of the appeal. There are also sites where targets adjust zoom can be changed.
Glasses have a number of different lattices, ranging from complex viewfinder grid to allow the shooter to estimate accurately the range of targets to compensate for a fall from the ball, and adapt traditional side to compensate for the crosswind continued. A user can estimate the range of objects of known size,Size of objects at distances known, and also close to balance and fall ball and the wind at distances known with a grid coverage.
There are two main types of grid: grid Wire
Wire grids are the oldest type of reticles and are made of wire. They are mounted in a tube optically appropriate position in the field of vision. gratings are etched images of desired layout, the grid is engraved on an optical element. Thisoptical element (lens) with the reticle is then mounted on to view sites as part of the optical tube backlight ocular a wire grid to reflect the incident light and not as a grid of black contrast. A lattice remains black if backlit. Grating recorded by many as a solution to be refined and interpreted to provide greater network flexibility. For this reason, some manufacturers offer customers can designCustom reticles on special order. More expensive high-end contemporary views inscribed gratings to dominate the market. In less scope reticles child sites are often still linked to a more specialized production and avoid costly step.
The grid can be front or rear focal plane (First Focal Plane (FFP) or second focal plane (SFP)) for telescope. The power steady rest there are significant differences, but the extent of sites of variable powerAircraft first reticle remains at a constant size over the target, while the back surface of the size of the grid remain constant with the increase of users and reduces the target image. Front focal plane reticles are slightly more resistant, but most American users prefer the image that the exchange constant grid size, almost all sites modern variable scope of power are the rear focal plane designs.
Each type of lattice can be illuminated in low light conditions to use. BeddedLattice, it is essential that its brightness can be adjusted. A lattice is too bright glare caused by the operator 's eye, breaking his ability to see in low light. Since the pupil of the eye closes quickly after receiving a source of light. Most offer adjustable levels of light brightness to adjust the reticle precisely to the ambient brightness.
A scope may have several experts:
Focusing on eye controlEnd of vision is - to get a clear picture of the object and reticle.
Elevation or vertical adjustment control of the cross.
Drift, or control of horizontal orientation of the cross.
Optical control element - to change the magnification by turning a ring, which is generally more levels increase significantly.
Adjustment controls the lighting of the must cross - to adjust the brightness of the illuminated portion of the viewfinder grid.
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