Description
Rifle Scope Product Details
DONGYUCHUN Sight Holographic Sight 1.5-4/30 Comes with Guide Rail Bracket Sight, red and Green Lights Alternate
material: metal
Lens: optical eyepiece
Multiple: 1.5-4 times
Focusing method: rotating focus
Rifle Scope Product Features
4x scope, super long distance business, zoom button, quick adjustment
Exquisite craftsmanship, good portability, easy to operate, and bring you a pleasant observation experience
All-optical glass production, with strong permeability, bright color, true color reproduction
Optical eyepieces, using optical glass lenses, multi-layer composite film, high light transmittance, clear and sharp imaging
Optional adjustment button, you can change the size of the multiple at will, zoom in and out at will
About the DONGYUCHUN Company
DONGYUCHUN is a premium company for firearm scopes, optics, mounting solutions, and other components used for firearms like rifles and long guns. They design and make their products by applying elements which are long lasting and resilient. This includes the DONGYUCHUN Sight Holographic Sight 1.5-4/30 Comes with Guide Rail Bracket Sight, red and Green Lights Alternate by DONGYUCHUN. For more shooting products, visit their website.
Scope Info
Rifle scopes enable you to precisely align a rifle at various targets by lining up your eye with the target at range. They accomplish this through zoom by employing a series of lenses within the scope. The scope’s alignment can be dialed in to take into account different natural aspects like wind and elevation decreases to account for bullet drop.
The scope’s purpose is to help the shooter understand exactly where the bullet will hit based upon the sight picture you are viewing via the scope as you align the scope’s crosshair or reticle with the intended target. Many modern-day rifle scopes and optics have around eleven parts which are found within and externally on the scope. These parts consist of the rifle scope’s body, lenses, windage dials or turrets, objective focus rings, and other components. Learn about the eleven parts of glass.
Rifle Scope Styles
Rifle scopes can be either “first focal plane” or “second focal plane” style of scopes. The type of focal plane a scope has identifies where the reticle or crosshair is located relative to the optic’s magnification. It simply indicates the reticle is located behind or before the magnifying lens of the scope. Looking for the most reliable type of rifle glass depends on what sort of shooting or hunting you intend on doing.
First Focal Plane Glass
Focal plane scopes (FFP) come with the reticle in front of the magnifying lens. This induces the reticle to increase in size based upon the amount of zoom being used. The outcome is that the reticle measurements are the same at the amplified range as they are at the non amplified distance. As an example, one tick on a mil-dot reticle at one hundred yards with no “zoom” is still the exact same tick at 100 yards with 5x “zoom”. These types of scopes are practical for:
- Quick acquisition, far away types of shooting
- Shooting scenarios where estimations are marginal
- Experienced shooters who have an idea for their aim point “hold over” plus “lead” equations for their long guns
- Shooters who do not mind the reticle is bigger and takes up more visual eyesight room than a SFP reticle
Second Focal Plane Glass
Second focal plane scopes (SFP) include the reticle to the rear of the magnifying lens. This induces the reticle to remain at the same size relative to the volume of magnification being used. The outcome is that the reticle dimensions adjust based upon the zoom employed to shoot over greater ranges because the markings present various increments which change with the magnification. In the FFP illustration with the SFP optic, the 5x “zoom” 100 yard tick reticle measurement would be 1/5th of the non “zoom” tick reticle measurement. These sorts of glass are beneficial for:
- Far away forms of shooting where shooters have increased time to make ballistic calculations
- Shooting where most of the shots take place within shorter ranges and distances
- Shooters who would like a clearer optic sight picture without area taken up by the larger sized FFP reticle
Magnification for Rifle Scopes
The quantity of magnification a scope offers is figured out by the size, thickness, and curvatures of the lenses inside of the rifle scope. The zoom of the scope is the “power” of the scope.
Single Power Lens Optic Info
A single power rifle scope or optic uses a zoom number designator like 4×32. This means the zoom power of the scope is 4x power and the objective lens is 32mm. The zoom of this type of optic can not adjust considering that it is a fixed power optic.
Adjustable Power Lens Rifle Optic Details
Variable power rifle scopes can be tweaked between magnified levels. The power change is accomplished by the power ring part of the scope near the back of the scope by the eye bell.
Power and Range
Here are some advised scope power settings and the ranges where they can be successfully used. Highly magnified optics will not be as useful as lower powered scopes due to the fact that too much magnification can be a bad thing. The same idea applies to longer distances where the shooter needs to have sufficient power to see where to best aim the rifle at the target.
Optic Lens Covering
All modern-day rifle scope and optic lenses are coated. There are different types and qualities of glass coverings. When considering high end rifle optical setups, Lens finishing can be an essential element of a rifle. The lenses are among the most crucial components of the glass due to the fact that they are what your eye sees through while sighting a rifle in on the point of impact. The covering on the lenses shields the lens exterior and also helps with anti glare capabilities from excess sunrays and color visibility.
ED Versus HD Optics
Some scope producers likewise use “HD” or high-definition lens coatings which use various processes, elements, chemicals, and polarizations to draw out a wide range of colors and viewable quality through the lens. Some scope producers use “HD” to refer to “ED” to signify the lens has extra-low dispersion glass.
Details on Single Covering Versus Multi-Coating
Different optic lenses can likewise have different finishings applied to them. All lenses generally have at least some type of treatment or finishing used to them prior to being used in a rifle scope or optic.
This lens treatment can protect the lens from scratches while decreasing glare and other less beneficial things experienced in the shooting environment while sighting in with the scope. The quality of a single layered lens depends on the scope manufacturer and how much you paid for it.
Some scope producers similarly make it a point to define if their optic lenses are coated or “multi” coated. Being “much better” depends on the producer’s lens treatment innovation and the quality of products used in developing the rifle scope.
About Hydrophobic Finish
Water on a scope lens does not improve keeping a clear sight picture through a scope whatsoever. Numerous top of the line and premium optic manufacturers will coat their lenses with a hydrophilic or hydrophobic finish. The Steiner Optics Nano-Protection is a good example of this kind of treatment. It deals with the surface area of the Steiner glass lens so the H2O molecules can not bind to it or develop surface tension. The result is that the water beads roll off of the scope to maintain a clear, water free sight picture.
Choices for Installing Scopes on Firearms
Installing approaches for scopes are available in a few choices. There are the basic scope rings which are individually installed to the scope and one-piece scope mounts which cradle the scope. These different kinds of mounts also normally can be found in quick release versions which use toss levers which enable rifle shooters to rapidly mount and dismount the scope.
Hex Key Rifle Optic Rings
Standard, clamp design mounting scope rings use hex head screws to mount to the flattop style Picatinny scope installation rails on rifles. These types of scope mounts use a couple of separate rings to support the optic, and are made from 7075 T6 billet aluminum which are designed for long distance accuracy shooting. This type of scope install is fine for rifles which require a durable, sound mount which will not move no matter how much the scope is moved or abuse the rifle takes.
Quick-Release Cantilever Glass Ring Mounting Solutions
These types of quick-release rifle scope mounts can be used to quickly detach a scope and attach it to a different rifle. Multiple scopes can also be swapped out if they all use a similar style mount. These types of mounts are handy for long guns which are carried a lot, to remove the optic from the rifle for protection, or for optics which are used between numerous rifles or are situationally focused.
Rifle Optic Tube Sealing and Gas Purging
Moisture inside your rifle optic can mess up a day of shooting and your pricey optic by causing fogging and developing residue inside of the scope tube. The majority of scopes avoid moisture from going into the scope tube with a system of sealing O-rings which are waterproof.
Gas Purged Scope Tubes
Another part of avoiding the accumulation of moisture within the rifle scope tube is filling the tube with a gas like nitrogen. Because this space is currently taken up by the gas, the optic is less impacted by condition changes and pressure variations from the external environment which could possibly permit water vapor to seep in around the seals to fill the vacuum which would otherwise be there. These are good qualities of a decent rifle scope to look for.
