Description
Rifle Scope Product Details
DJym Folding Red Dot Sight, 22mm Rail
[Color]: matte black
[Enlarge]: 1 times
[Weight]: 113 g
[Target diameter]: 22 mm
[Size guide]: 22 mm
[Vision]: 15.8 m @ 100 m
[Crosshairs Type]: 1
[Color differentiation wire]: red and green dot
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Rifle Scope Product Features
fast aiming, compact, compact, quick installation.
This is a year of new products, the design is very innovative.
foldable size, new design, easy to carry.
100% brand new, excellent product quality, strong shock resistance, and very stable installation.
quality assurance, our products have been CE and RoHS certified, if you have any questions, we will respond to you within 24 hours
About the DJym Manufacturer
DJym is a premium supplier for long gun scopes, optics, mounts, and other add-ons used for firearms like rifles and long guns. They innovate and make their scopes, mounts, and related products by applying elements which are resilient and long lasting. This includes the DJym Folding Red Dot Sight, 22mm Rail by DJym. For more shooting products, visit their site.
Rifle Scope Facts
Rifle scopes enable you to precisely aim a rifle at different targets by aligning your eye with the target at range. They accomplish this through magnification by using a series of lenses inside the scope. The scope’s positioning can be dialed in for consideration of numerous environmental factors like wind speed and elevation decreases to account for bullet drop.
The scope’s purpose is to help the shooter understand precisely where the bullet will land based upon the sight picture you are seeing through the scope as you align the scope’s crosshair or reticle with the intended target. A lot of contemporary rifle optics have around 11 parts which are found inside and externally on the scope body. These scope parts consist of the rifle scope’s body, lenses, windage dials, objective focus rings, and other parts. Learn about the eleven parts of rifle glass.
Rifle Optic Types
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Deciding upon the best type of rifle scope is based around what type of shooting you plan on doing.
First Focal Plane Scope Details
First focal plane scopes (FFP) include the reticle ahead of the zoom lens. This causes the reticle to increase in size based on the extent of zoom being used. The result is that the reticle measurements are the same at the amplified range as they are at the non magnified range. One tick on a mil-dot reticle at 100 yards without “zoom” is still the very same tick at one hundred yards by using 5x “zoom”. These kinds of scopes work for:
- Quick acquisition, far away kinds of shooting
- Shooting situations where computations are minimal
- Experienced shooters who understand their target “hold over” and “lead” relationships for their rifles
- Shooters who do not mind the reticle is bigger and uses up more visual sight space than a SFP reticle
Second Focal Plane Scopes
Second focal plane glass (SFP) include the reticle to the rear of the zoom lens. This induces the reticle to stay at the very same size in relation to the level of zoom being used. The result is that the reticle measurements evolve based on the magnification used to shoot over longer ranges due to the fact that the markings represent distinct increments which differ with the zoom. In the FFP illustration with the SFP glass, the 5x “zoom” 100 yard tick would be 1/5th of the non “zoom” tick measurement. These sorts of glass are convenient for:
- Far away kinds of shooting where shooters have increased time to make ballistic calculations
- Shooting where most of the shots occur within much shorter distances and ranges
- Shooters who select a clearer optic picture without space taken up by the larger size FFP reticle
Scope Zoom
The quantity of zoom a scope provides is identified by the diameter, thickness, and curvatures of the lenses inside of the rifle scope. The magnification of the scope is the “power” of the scope.
Single Power Lens Scopes
A single power rifle optic or scope will have a zoom number designator like 4×32. This suggests the zoom power of the scope is 4x power while the objective lens is 32mm. The magnification of this kind of scope can not adjust given that it is a fixed power optic.
Adjustable Power Lens Scope Info
Variable power rifle scopes can be adjusted between magnification levels. These types of scopes will list the zoom level in a configuration such as 2-10×32. These numbers mean the magnification of the scope can be set between 2x and 10x power. This additionally involves the powers in-between 2 and 10. The power adaptation is accomplished by making use of the power ring component of the scope near the rear of the scope by the eye bell piece.
The Power and Range of Optics
Here are some advised scope power levels and the ranges where they can be successfully used. Bear in mind that high power glass will not be as efficient as lower magnification level scopes due to the fact that excessive magnification can be a negative thing in certain situations. The same concept applies to extended ranges where the shooter needs to have enough power to see precisely where to properly aim the rifle.
Scope Lens Coating
All present day rifle scope lenses are covered. Lens covering is a crucial element of a rifle when buying high end rifle optics and scope equipment.
Details on Lens Coatings – HD Versus ED
Some scope makers also use “HD” or high-definition lens coatings which use different processes, aspects, polarizations, and chemicals to draw out a wide range of colors and viewable definition through the lens. Some scope producers use “HD” to refer to “ED” to signify the lens has extra-low dispersion glass.
Single Coating Versus Multi-Coating for Optics
Different optic lenses can also have different coatings used to them. All lenses normally have at least some type of treatment or coating applied to them prior to being used in a rifle scope or optic.
Single coated lenses have a treatment applied to them which is usually a protective and improving multi-purpose treatment. This lens treatment can shield the lens from scratches while lowering glare and other less useful things experienced in the shooting environment while sighting in with the optic. The quality of a single layered lens depends on the scope company and how much money you spent for it. The scope’s maker and cost are indications of the lens quality.
Some scope makers also make it a point to define if their optic lenses are covered or “multi” coated. This suggests the lens has multiple treatments applied to the surfaces. If a lens receives several treatments, it can establish that a producer is taking numerous steps to combat different environmental factors like an anti-glare coating, a scratch resistant anti-abrasion finish, followed by a hydrophilic covering. This also does not always suggest the multi-coated lens will perform better than a single coated lens. Being “much better” depends upon the maker’s lens treatment techniques and the quality of products used in creating the rifle scope.
Hydrophobic Rifle Optic Lens Finish
Water on an optic’s lens does not improve keeping a clear sight picture through an optic at all. Numerous top of the line or premium optic makers will coat their lenses with a hydrophilic or hydrophobic finish. The Steiner Optics Nano-Protection is a fine example of this sort of treatment. It deals with the exterior of the Steiner optic lens so the water molecules can not bind to it or create surface tension. The outcome is that the water beads sheet off of the scope to keep a clear, water free sight picture.
Alternatives for Mounting Glass on Long Guns
Installing solutions for scopes can be found in a few options. There are the basic scope rings which are separately mounted to the scope and one-piece scope mounts which cradle the scope. These various types of mounts also normally come in quick release versions which use throw levers which permit rifle operators to rapidly mount and dismount the optics.
Hex Key Optic Rings
Standard, clamp style mounting scope rings use hex head screws to fix to the flattop style Picatinny scope mounting rails on the tops of rifles. These styles of scope mounts use two detached rings to support the optic, and are normally constructed from 7075 T6 billet aluminum or similar materials which are manufactured for far away precision shooting. This type of scope mount is exceptional for rifles which need to have a long lasting, 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 specialized scope system on a far away scouting 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’s screws to stop the hex screw threads from wiggling out after they are mounted tightly in position. An example of these mounting rings are the 30mm type made by Vortex Optics. The set typically costs around $200 USD
Quick-Release Cantilever Glass Ring Mounting Solutions
These types of quick-release rifle scope mounts can be used to quickly detach a scope from a rifle and reattach it to a different rifle. If they all use a comparable design mount, multiple scopes can often be switched out in the field. The quick detach mount style is CNC crafted from anodized 6061 T6 aluminum and the mounting levers fasten nicely to a flat top design Picatinny rail. This enables the scope to be sighted in while on the rifle, taken off of the rifle, and remounted back on the rifle while keeping precision. These types of mounts come in handy for rifles which are carried a lot, to remove the glass from the rifle for protection, or for scopes which are chosen for use between numerous rifles. An example of this mount type is the 30mm mount designed by Vortex Optics. It normally costs around $250 USD
Sealing and Gas Purging for Scope Tubes
Wetness inside your rifle scope can spoil a day on the range and your costly optic by triggering fogging and creating residue inside of the scope’s tube. The majority of optics prevent humidity from getting in the optical tube with a system of sealing O-rings which are waterproof. Generally, these water-resistant optics can be submerged within 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be sufficient humidity avoidance for standard use rifles, unless you intend on taking your rifle sailing and are worried about the optic still functioning if it is submerged in water and you can still salvage the firearm.
Info on Rifle Glass Tube Gas Purging
Another element of preventing the accumulation of wetness inside of the rifle scope tube is filling the tube with a gas like nitrogen. Because this space is currently taken up by the gas, the scope is less influenced by climate changes and pressure variations from the external environment which may potentially permit water vapor to leak in around the seals to fill the vacuum which would otherwise be there. These are good qualities of a good rifle scope to seek out.
