Description
Rifle Scope Product Details
TTHU Rifle Scope 4X Fixed Dual Purpose Scope with Mini Red Dot Scope Red Dot Sight for Rifle Hunting Shooting
1x-4x fixed retical with RED and GREEN illumination,wide angle is just with red illuminated
Come with detachable mini red dot sight.
Quick Detachable mount base.
Magnification: 1X-4X.
Can switches instantly from 1x to 4x.
Eye Relief: 3 inches.
Objective Lens Diameter: 32mm.
Exit-pupil: 8mm.
Eye relief: 3.
Objective lens diameter: 30mm.
F.O.V.: 146.3-34.2ft100yds.
Rails fitting: 20mm RIS/RAS rails.
Weight: 670g.
Battery: one (1) pc CR2032 lithium(Not Included)
Rifle Scope Product Features
100% brand new and high quality!
Made of superior material,durable to use,It is made of metal, feel comfortable and wear resistant.
Built in battery, is suitable for 20mm width rail
The sight is composed of an inner red point sight and an inner cross sight.
The left and right of aim point of the inner cross sight can be adjusted, and the aim point of the color can be switched from red and green freely, and the scope can also be adjusted for magnification, which can be switched between 1 and 4 times
About the TTHU Brand
TTHU is a premium maker for weapon scopes, optics, mounts, and other add-ons used for guns like rifles and long guns. They design and manufacture their scopes and related products using elements which are long lasting and durable. This includes the TTHU Rifle Scope 4X Fixed Dual Purpose Scope with Mini Red Dot Scope Red Dot Sight for Rifle Hunting Shooting by TTHU. For more shooting items, visit their website.
Glass Information
Rifle scopes allow you to specifically align a rifle at various targets by lining up your eye with the target over a range. They do this through magnifying the target by employing a series of lenses inside the scope. The scope’s positioning can be adjusted to account for separate ecological elements like wind speed 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 with the scope as you align the scope’s crosshair or reticle with the intended point of impact. Many modern rifle optics have about 11 parts which are arranged inside and externally on the optic. These parts include the rifle scope’s body, lenses, windage turrets or dials, objective focus rings, and other elements. Learn about the eleven parts of optics.
The Types of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Choosing the finest type of rifle optic is based on what type of shooting you plan on doing.
First Focal Plane Scopes
Focal plane scopes (FFP) feature the reticle in front of the magnification lens. These kinds of scopes are helpful for:
- Quick acquisition, long distance types of shooting
- Shooting scenarios where computations are minimal
- Experienced shooters who know their aim point “hold over” plus “lead” ratios for their weapon
- Shooters who do not mind the reticle is bigger and occupies more visual eyesight room than a SFP reticle
About Second Focal Plane Optics
Second focal plane scopes (SFP) come with the reticle behind the magnification lens. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick reticle measurement would be 1/5th of the non “zoom” tick measurement.
- Long distance types of shooting where shooters have more time to make ballistic computations
- Shooting where most shots take place within shorter proximities and ranges
- Shooters who would like a clearer optic sight picture without room taken up by the bigger FFP reticle
Zoom for Rifle Optics
The extent of scope zoom you need on your optic depends upon the kind of shooting you choose to do. Nearly every style of rifle glass supplies some amount of zoom. The quantity of magnification a scope provides is established by the size, thickness, and curves of the lens glass inside of the rifle optic. The zoom of the scope is the “power” of the glass. This denotes what the shooter is checking out through the scope is magnified times the power aspect of what can usually be seen by human eyes.
Single Power Lens Rifle Optics
A single power rifle scope comes with a magnification number designator like 4×32. This means the zoom power of the scope is 4x power and the objective lens is 32mm. The magnification of this type of scope can not change given that it is fixed.
Variable Power Lens Rifle Scope Facts
Variable power rifle scopes use enhanced power. The power change is handled using the power ring part of the scope near the back of the scope by the eye bell.
Power and Range Correlations
Here are some recommended scope power levels and the ranges where they may be efficiently used. High power optics will not be as beneficial as lower magnification optics because too much zoom can be a bad thing. The same concept goes for longer distances where the shooter needs enough power to see where to best aim the rifle.
Lens Coating for Rifle Glass
All modern rifle optic lenses are layered. Lens coating is a vital aspect of a rifle’s setup when looking into high end rifle optics and scope setups.
ED Versus HD Optics
Some scope makers also use “HD” or high-definition lens coatings which use different methods, chemicals, aspects, and polarizations to draw out various colors and viewable definition through the lens. Some scope manufacturers use “HD” to refer to “ED” to signify the lens has extra-low dispersion glass.
Details on Single Finishing Versus Multi-Coating
Different optic lenses can also have different coatings applied to them. All lenses typically have at least some type of treatment or finishing applied to them before being used in a rifle scope or optic assembly. Because the lens isn’t simply a raw piece of glass, they require performance enhancing coatings. It is part of the carefully tuned optic. It must have a coating applied to it so that the lens will be efficiently functional in many types of environments, degrees of sunshine (full VS shade), and other shooting conditions.
This lens treatment can safeguard the lens from scratches while decreasing glare and other less advantageous things experienced in the shooting environment while sighting in with the scope. The quality of a single covered lens depends on the scope manufacturer and how much you paid for it.
Some scope producers similarly make it a point to specify if their optic lenses are layered or “multi” covered. Being “much better” depends on the manufacturer’s lens treatment technology and the quality of products used in building the rifle scope.
Hydrophobic Rifle Scope Lens Coating
Water on an optic’s lens doesn’t support preserving a clear sight picture through a scope in any way. Lots of top of the line and high-end optic manufacturers will coat their lenses with a hydrophobic or hydrophilic finishing. The Steiner Optics Nano-Protection is a good example of this sort of treatment. It treats the surface of the Steiner scope lens so the H2O molecules can not bind to it or develop surface tension. The result is that the water beads sheet off of the scope to keep a clear, water free sight picture.
Options for Mounting Rifle Glass on Long Guns
Installing solutions for scopes come in a few choices. There are the basic scope rings which are individually installed to the scope and one-piece mounts which cradle the scope. These various kinds of mounts also generally are made in quick release versions which use manual levers which permit rifle operators to quickly mount and remove the scopes.
Hex Key Rifle Glass Ring Mounts
Standard, clamp style mounting scope rings use hex head screws to mount to the flattop design Picatinny scope installation rails on rifles. These types of scope mounts use two different rings to support the optic, and are often made from 7075 T6 billet aluminum which is developed for long range accuracy shooting. This type of scope install is wonderful for rifles which need a resilient, sound mounting solution which will not move no matter how much the scope is moved or abuse the rifle takes.
Quick-Release Cantilever Rifle Optic Rings
These kinds of quick-release rifle scope mounts can be used to rapidly attach and take off a scope from a rifle. If they all use a similar style mount, multiple scopes can often be swapped on the range. The quick detach design is CNC machined from anodized 6061 T6 aluminum and the mounting levers attach firmly to a flat top design Picatinny rail. This permits the scope to be sighted in while on the rifle, taken off of the rifle, and remounted while maintaining accuracy. These kinds of mounts come in beneficial for rifles which are transported a lot, to remove the scope from the rifle for protection, or for scopes which are utilized in between numerous rifles. An example of this mount style is the 30mm mount designed by Vortex Optics. It typically costs around $250 USD
Rifle Glass Tube Sealing and Gas Purging
Wetness inside your rifle optic can spoil a day of shooting and your costly optic by inducing fogging and producing residue inside of the scope’s tube. The majority of optics prevent humidity from entering the optical tube with a series of sealing O-rings which are water resistant. Usually, these scopes 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 moisture avoidance for basic use rifles for hunting and sporting purposes, unless you anticipate taking your rifle aboard a watercraft and are worried about the optic still functioning if it goes over the side and you can still salvage the firearm.
About Glass Tube Gas Purging
Another component of avoiding the buildup of moisture within the rifle optic’s tube is filling the tube with a gas like nitrogen. Given that this area is already taken up by the gas, the scope is less impacted by condition changes and pressure variations from the external environment which might potentially allow water vapor to permeate in around the seals to fill the vacuum which would otherwise be there. These are good qualities of a decent rifle scope to seek out.
