Description
Rifle Scope Product Details
DONGYUCHUN 4×32 Scope Fiber Optic Prism Cross Tactical Scope with mounting Ring Tactical Hunting Rifle, Scope
material: metal
Specification: 4*32 fiber prism
Rifle Scope Product Features
Milled from a solid aircraft-grade aluminum, it can withstand constant heavy recoil
Three-color (red, green, blue) mask with adjustable rheostat for brightness control
4x scope with red optical fiber sight, 4x magnification and 32mm objective lens
Green fusion multilayer coated lenses provide excellent light transmittance, resolution and scratch resistance
Adjustable mechanical base makes it more convenient to use
About the DONGYUCHUN Scope Maker
DONGYUCHUN is a premium producer for weapon scopes, optics, mounting solutions, and other add-ons used for guns like rifles and long guns. They create and make their mounts and related products by choosing building materials which are durable and long lasting. This includes the DONGYUCHUN 4×32 Scope Fiber Optic Prism Cross Tactical Scope with mounting Ring Tactical Hunting Rifle, Scope by DONGYUCHUN. For more shooting products, visit their site.
Info Glass
Rifle scopes allow you to exactly align a rifle at different targets by lining up your eye with the target at range. They do this through magnifying the target using a series of lenses within the scope. The scope’s alignment can be dialed in for the consideration of separate ecological elements like wind and elevation to make up for bullet drop.
The scope’s purpose is to help shooters understand exactly where the bullet will hit based upon the sight picture you are viewing via the optic as you align the scope’s crosshair or reticle with the intended target. A lot of modern rifle scopes have about 11 parts which are found internally and on the exterior of the scope body. These scope parts include the rifle scope’s body, lenses, windage dials, focus rings, and other elements. Learn about the eleven parts of rifle optics.
Rifle Glass Styles
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Going for the perfect type of rifle scope depends on what type of shooting you plan to do.
First Focal Plane Optic Details
Focal plane scopes (FFP) feature the reticle in front of the magnification lens. These types of scopes are useful for:
- Quick acquisition, far away types of shooting
- Shooting scenarios where calculations are very little
- Experienced shooters who know their target “hold over” as well as “lead” equations for their firearm
- Shooters who do not mind the reticle is enlarged and occupies more visual eyesight area than a SFP reticle
Info on Second Focal Plane Optics
Second focal plane optics (SFP) come with the reticle behind the magnification lens. This causes the reticle to remain at the exact same size in relation to the amount of zoom being used. The end result is that the reticle dimensions change based upon the zoom chosen to shoot over lengthier ranges due to the fact that the reticle measurements present distinct increments which vary with the zoom. In the FFP example with the SFP glass, the 5x “zoom” 100 yard tick would be 1/5th of the non “zoom” tick measurement. These particular styles of optics work for:
- Long distance types of shooting where shooters have extra time to make ballistic calculations
- Shooting where most of the shots happen within shorter ranges and spaces
- Shooters who want a clearer optic sight picture with less room taken up by the bigger FFP reticle
Glass Zoom
The amount of zoom a scope offers is identified 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 Scope Details
A single power rifle optic or scope will have a zoom number designator like 4×32. This indicates the magnification power of the scope is 4x power while the objective lens is 32mm. The magnification of this type of optic can not change since it is fixed.
Info on Adjustable Power Lens Scopes
Variable power rifle scopes use variable power levels. The power adjustment is handled by using the power ring part of the scope near the back of the scope by the eye bell.
Scope Power and Ranges
Here are some suggested scope powers and the ranges where they can be efficiently used. Remember that high power glass will not be as effective as lower powered scope and optics because increased magnification can be a negative thing in certain situations. The same concept applies to longer ranges where the shooter needs to have adequate power to see where to best aim the rifle.
About Rifle Glass Lens Coatings
All present day rifle scope lenses are covered. Lens coating is a vital aspect of a shooting system when considering high end rifle optics and scope systems.
ED Versus HD Rifle Glass
Some optic makers even use “HD” or high-def glass coverings which apply different procedures, components, chemicals, and polarizations to enhance various color ranges and viewable target visibility through the lens. This high-definition finishing is commonly used with more costly high density glass which decreases light’s ability to refract through the lens glass. Some scope suppliers use “HD” to refer to “ED” meaning extra-low dispersion glass. ED deals with how certain colors are presented on the chroma spectrum and the chromatic aberration which is also called color distortion or fringing. Chromatic aberration may be obvious over things with defined outlines as light hits the object from particular angles.
Rifle Scope Lens Single Finish Versus Multi-Coating
Different optic lenses can also have various finishings applied to them. All lenses usually have at least some type of treatment or finishing used to them prior to being used in a rifle scope or optic.
Single layered lenses have a treatment applied to them which is typically a protective and enhancing multi-purpose treatment. This lens treatment can protect the lens from scratches while reducing glare and other less useful things experienced in the shooting environment while sighting in with the scope. The quality of a single coated lens depends upon the scope designer and how much you spent on it. The scope’s maker and cost are indications of the lens quality.
Some scope manufacturers also make it a point to define if their optic lenses are layered or “multi” coated. This implies the lens has multiple treatments applied to them. If a lens gets numerous treatments, it can prove that a producer is taking numerous steps to fight various environmental factors like an anti-glare covering, a scratch resistant anti-abrasion finish, followed by a hydrophilic covering. This also doesn’t always indicate the multi-coated lens will perform much better than a single coated lens. Being “much better” is dependent on the maker’s lens treatment innovation and the quality of products used in creating the rifle scope.
Anti-water Lens Coating
Water on a lens doesn’t assist with preserving a clear sight picture through a scope at all. Numerous top of the line and high-end scope makers will coat their lenses with a hydrophobic or hydrophilic coating.
Rifle Glass Installation Choices
Installing options for scopes are available in a couple of choices. There are the standard scope rings which are individually installed to the optic and one-piece mounts which cradle the scope. These various types of mounts also usually are made in quick release variations which use manual levers which allow rifle operators to quickly install and remove the scopes.
Rifle Optic Mounting Solutions with Hex Key Rings
Basic, clamp design mounting optic rings use hex head screws to install to the flattop design Picatinny scope mount rails on rifles. These styles of scope mounts use double independent rings to support the scope, and are normally made from 7075 T6 billet aluminum which are made for long distance accuracy shooting. This type of scope mount is good for rifle systems which are in need of a resilient, hard use mount which will not change despite how much the scope is moved about or abuse the rifle takes. These are the style of mounts you should get for a faithful scope system on a long distance hunting or sniper competition long gun that will almost never need to be altered or adjusted. Blue 242 Loctite threadlocker can also be used on the scope mount screws to stop the hex screws from backing out after they are mounted tightly in place. An example of these mounting rings are the 30mm style from Vortex Optics. The set typically costs around $200 USD
Optic Mounting Solutions with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to rapidly take off a scope and attach it to a different rifle. Multiple scopes can also be switched out if they all use a compatible design mount. These types of mounts are handy for rifles which are transported a lot, to swap out the optic from the rifle for protection, or for scopes which are used between multiple rifles.
Rifle Glass Tube Sealing and Gas Purging
Moisture inside your rifle scope can wreck a day on the range and your costly optic by resulting in fogging and making residue within the scope’s tube. The majority of optics prevent wetness from going into the scope tube with a system of sealing O-rings which are water resistant. Normally, these water-resistant optics can be immersed beneath 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be sufficient humidity avoidance for standard use rifles for hunting and sporting purposes, unless you intend on taking your rifle aboard a watercraft and are worried about the optic still performing if it goes over the side and you can still recover the firearm.
About Rifle Scope Tube Gas Purging
Another component of avoiding the buildup of moisture within the rifle scope tube is filling the tube with a gas like nitrogen. Since this area is currently taken up by the gas, the scope is less impacted by climate alterations and pressure differences from the outside environment which may potentially allow water vapor to seep in around the seals to fill the void which would otherwise be there. These are good qualities of a good rifle scope to look for.
