Rifle Scope Product Details
TTHU Rifle Scope Red Green Dot Sight Without Markings with 20MM Rail for Airsoft Game Rifle Scope for Hunting
Lens Diameter: 35 mm
length: 150 mm
Dot color: red & green
Color brightness setting: five in each color
exit pupil: 30mm
tube Dia .: 44mm
field of vision (100yds): 60
Rail size: 20 mm
Built Material: Aluminum
Battery: LR936Not included
Rifle Scope Product Features
Red / Green illuminated with 5 level control
Adjustable windage and elevation
Built-in QD Mount Base for 20mm Rail
Durable all metal housing with dual-layer coated lens
About the TTHU Brand
TTHU is a premium supplier for long gun scopes, optics, mounts, and other components used for guns like rifles and long guns. They style and manufacture their mounts, scopes, and related products choosing elements which are long lasting and durable. This includes the TTHU Rifle Scope Red Green Dot Sight Without Markings with 20MM Rail for Airsoft Game Rifle Scope for Hunting by TTHU. For more shooting products, visit their website.
What You Need to Know About Rifle Optics
Rifle scopes enable you to specifically align a rifle at various targets by lining up your eye with the target over a distance. They accomplish this through magnifying the target by utilizing a series of lenses inside the scope. The scope’s alignment can be adjusted to account for varied environmental aspects like wind speed and elevation increases or decreases to make up for bullet drop.
The scope’s function is to help shooters understand exactly where the bullet will land based on the sight picture you are viewing using the optic as you align the scope’s crosshair or reticle with the intended point of impact. A lot of modern-day rifle scopes and optics have about eleven parts which are found internally and externally on the optic. These scope parts consist of the rifle scope’s body, lenses, windage turrets, focus rings, and other parts. Learn about the eleven parts of glass.
The Types of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. The style of focal plane an optic has identifies where the reticle or crosshair is located in connection with the scopes magnification. It simply indicates the reticle is behind or before the magnification lens of the scope. Deciding on the most beneficial form of rifle glass is based on what type of shooting or hunting you anticipate doing.
Info on First Focal Plane Scopes
First focal plane scopes (FFP) include the reticle in front of the magnifying lens. This triggers the reticle to increase in size based upon the level of magnification being used. The benefit is that the reticle measurements are the same at the enhanced range as they are at the non magnified distance. As an example, one tick on a mil-dot reticle at one hundred yards with no “zoom” is still the very same tick at 100 yards using 5x “zoom”. These types of scopes work for:
- Quick acquisition, far away types of shooting
- Shooting situations where calculations are small
- Experienced shooters who understand their aim point “hold over” plus “lead” relationships for their weapon
- Shooters who do not mind the reticle is enlarged and requires more visual sight area than a SFP reticle
Info on Second Focal Plane Optics
Second focal plane optics (SFP) include the reticle behind the magnification lens. This triggers the reticle to stay at the same size in connection with the level of magnification being used. The effect is that the reticle dimensions adapt based on the zoom employed to shoot over longer ranges considering the reticle measurements represent different increments which fluctuate with the magnification. In the FFP example with the SFP optic, the 5x “zoom” 100 yard tick measurement would be 1/5th of the non “zoom” tick. These kinds of optics are useful for:
- Far away types of shooting where shooters have more time to make ballistic calculations
- Shooting where most shots take place within much shorter ranges and spaces
- Shooters who want a clearer optic picture with less area taken up by the larger size FFP reticle
About Rifle Glass Magnification
The quantity of scope zoom you need on your glass depends on the style of shooting you plan to do. Practically every type of rifle optic gives some level of magnification. The level of magnification a scope provides is identified by the size, thickness, and curvatures of the lens glass inside of the rifle optic. The zoom of the scope is the “power” of the opic. This suggests what the shooter is checking out through the scope is amplified times the power factor of what can normally be seen by human eyes.
Fixed Single Power Lens Optics
A single power rifle scope and optic uses a magnification number designator like 4×32. This suggests the zoom power of the scope is 4x power and the objective lens is 32mm. The magnification of this type of scope can not fluctuate considering that it is set from the factory.
Variable Power Lens Rifle Glass Details
Variable power rifle scopes use variable power levels. The power change is accomplished by using the power ring part of the scope near the back of the scope by the eye bell.
Glass Power and Ranges
Here are some advised scope power levels and the ranges where they could be effectively used. Always remember that high power scopes and optics will not be as practical as lower magnification level scopes because increased magnification can be a bad thing. The very same idea goes for extended ranges where the shooter needs to have increased power to see precisely where to properly aim the rifle.
Info on Lens Finishes
All modern-day rifle scope lenses are coated. There are different types and qualities of glass lens finishes. When thinking about luxury rifle targeting units, Lens finishing can be an important component of a rifle. The lenses are one of the most critical pieces of the scope considering they are what your eye looks through while sighting a rifle in on the point of impact. The finish on the lenses offers protection to the lens surface area as well as helps with anti glare from refracted light and color exposure.
ED Versus HD Scopes
Some glass producers even use “HD” or high-def lense coatings which take advantage of different procedures, components, polarizations, and chemical applications to extract various color ranges and viewable target definition through lenses. This high-def coating is typically used with more costly, high density lens glass which drops light’s capability to refract by means of the lens glass. Some scope suppliers use “HD” to describe “ED” indicating extra-low dispersion glass. ED deals with how certain colors are represented on the chroma spectrum and the chromatic aberration or difference which is also called color distortion or fringing. Chromatic aberration is often obvious around things with well defined outlines as light hits the item from various angles.
Single Optic Lens Finish Versus Multi-Coating
Various optic lenses can even have various finishings applied to them. All lenses typically have at least some kind of treatment or coating applied to them before being used in a rifle scope or optic. Due to the fact that the lens isn’t just a raw piece of glass, they require performance enhancing coatings. It becomes part of the finely tuned optic. It must have a finishing put on it so that it will be optimally usable in many types of environments, degrees of sunshine (full VS shaded), and other shooting conditions.
Single layered lenses have a treatment applied to them which is usually a protective and boosting multi-purpose treatment. This lens treatment can shield the lens from scratches while decreasing glare and other less advantageous things experienced in the shooting environment while sighting in with the optic. The quality of a single layered lens depends on the scope developer and just how much you spent on it. Both are indications of the lens quality.
Some scope producers also make it a point to define if their optic lenses are layered or “multi” covered. Being “better” depends on the producer’s lens treatment innovation and the quality of products used in constructing the rifle scope.
Hydrophobic Lens Covering
Water on a lens does not assist with maintaining a clear sight picture through a scope at all. Numerous top of the line and military grade optic companies will coat their lenses with a hydrophobic or hydrophilic covering.
Optic Installation Alternatives
Mounting options for scopes can be found in a few choices. There are the basic scope rings which are separately installed to the scope and one-piece scope mounts which cradle the scope. These different kinds of mounts also generally can be found in quick release versions which use throw levers which enable rifle operators to rapidly install and dismount the scope.
Rifle Scope Mounting Solutions with Hex Key Rings
Normal, clamp design 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 are created for long range accuracy shooting. This type of scope mount is perfect for rifles which require a long lasting, sound mounting solution which will not move no matter how much the scope is moved or abuse the rifle takes.
Glass Mounts with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to rapidly connect and remove a scope from a rifle before reattaching it to a different rifle. Several scopes can even be swapped out if they all use a compatible style mount. These types of mounts come in handy for long guns which are transferred a lot, to swap out the optic from the rifle for protection, or for optics which are used in between several rifles or are situationally focused.
Optic Tube Sealing and Gas Purging
Wetness inside your rifle scope can wreck a day on the range and your costly optic by triggering fogging and making residue inside of the scope’s tube. A lot of optics prevent moisture from getting in the optical tube with a system of sealing O-rings which are waterproof. Generally, these water-resistant scopes can be submerged within 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be plenty of moisture prevention for basic use rifles for hunting and sporting purposes, unless you anticipate taking your rifle aboard watercrafts and are concerned about the scope still performing if it is submerged in water and you can still find the firearm.
Details on Rifle Scope Tube Gas Purging
Another component of preventing the accumulation of wetness within the rifle scope’s tube is filling the tube with a gas like nitrogen. Considering that this space is already taken up by the gas, the glass is less impacted by temp shifts and pressure distinctions from the external environment which may possibly permit water vapor to permeate in around the seals to fill the vacuum which would otherwise exist. These are good qualities of a good rifle scope to look for.