Description
Rifle Scope Product Details
NightStar 5-25X42 FFP Illuminated Glass Reticle Scope
Magnification Value (Variable) 5-25X Objective Lens Diameter 42mm Ocular Lens Diameter 34mm Lens Coating Fully Multi Coated Body Tube Diameter 30mm Length 415mm Construction type 1 PIECE Color / Finish Black Matte Waterproof (Y / N) YES Fogproof (Y / N) YES Shockproof (Y / N) YES Ocular Focus (Y / N) YES Side Focus (Y / N) YES Windage Adjustment Range 35MOA–35MOA Elevation Adjustment Range 35MOA–35MOA Click Value 1/8MOA Reticle Type (Etched / Wire) Etched Eye Relief (mm) 5.1-3.5 Exit Pupil (mm) 8mm – 1.68mm Field of View (ft@100yds) 25.2-6.3 Front focal plane (Y / N) Front focal plane Ocular Outside Diameter 43.5mm Diopter Compensation -2dpr–+3dpr
Rifle Scope Product Features
5x variation! First Focal Plane scope with illuminated glass reticle, can stand for strong recoil for magnum shot gun!
About the NightStar Scope Maker
NightStar is a premium manufacturer for long gun scopes, optics, mounting solutions, and other accessories used for guns like rifles and long guns. They innovate and build their scopes, mounts, and related products working with building materials which are durable and long lasting. This includes the NightStar 5-25X42 FFP Illuminated Glass Reticle Scope by NightStar. For more shooting products, visit their site.
Rifle Glass Details
Rifle scopes allow you to precisely aim a rifle at various targets by aligning your eye with the target at range. They accomplish this through zoom by making use of a set of lenses inside the scope. The scope’s positioning can be adapted to take into account varied ecological aspects like wind 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 seeing through the optic as you line up the scope’s crosshair or reticle with the target. A lot of modern rifle scopes and optics have around eleven parts which are located within and on the exterior of the optic. These scope parts include the rifle scope’s body, lenses, windage and elevation dials, objective focus rings, and other elements. See all eleven parts of optics.
Rifle Glass Types
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Considering the optimal type of rifle glass depends on what type of shooting you plan on doing.
Info About First Focal Plane Optics
Focal plane scopes (FFP) feature the reticle in front of the magnification lens. These types of scopes are helpful for:
- Quick acquisition, long distance types of shooting
- Shooting scenarios where estimations are minor
- Experienced shooters who recognize their target “hold over” as well as “lead” correlations for their firearms
- Shooters who do not mind the reticle is enlarged and uses up more visual eyesight room than a SFP reticle
Info on Second Focal Plane Scopes
Second focal plane optics (SFP) come with the reticle behind the zoom lens. In the FFP example with the SFP scope, the 5x “zoom” one hundred yard tick measurement would be 1/5th of the non “zoom” tick measurement.
- Long distance kinds of shooting where shooters have increased time to make ballistic calculations
- Shooting where most shots occur within much shorter ranges and proximities
- Shooters who select a clearer optic picture with less area taken up by the larger size FFP reticle
Magnification for Rifle Optics
The level of scope magnification you need on your scope is based on the form of shooting you wish to do. Pretty much every kind of rifle glass delivers some level of zoom. The amount of magnification a scope supplies is determined by the size, density, and curves of the lens glass inside of the rifle optic. The magnification of the scope is the “power” of the glass. This signifies what the shooter is observing through the scope is amplified times the power factor of what can usually be seen by human eyes.
Info About Fixed Power Lens Glass
A single power rifle optic will have a zoom number designator like 4×32. This suggests the zoom power of the scope is 4x power and the objective lens is 32mm. The zoom of this type of scope can not change since it is a fixed power optic.
Adjustable Power Lens Optics
Variable power rifle scopes can be tweaked between magnified levels. The power adjustment is accomplished using the power ring part of the scope near the back of the scope by the eye bell.
The Power Level and Range of Glass
Here are some advised scope powers and the ranges where they may be effectively used. Highly magnified optics will not be as useful as lower magnification level scopes because too much zoom can be a negative aspect depending on your shooting distance. The same concept goes for extended distances where the shooter needs adequate power to see exactly where to best aim the rifle at the target.
Info on Rifle Scope Lens Covering
All contemporary rifle scope and optic lenses are covered in special coatings. There are different types and qualities of glass lens coverings. When considering high end rifle optical units, Lens finish can be an essential element of defining the rifle’s capability. The glass lenses are among the most key parts of the scope because they are what your eye looks through while sighting a rifle in on the target. The finish on the lenses offers protection to the lens surface area and even assists with anti glare capabilities from refracted sunlight and color presence.
HD Versus ED Optic Lens Coatings
Some scope producers likewise use “HD” or high-definition lens coverings which use various processes, chemicals, polarizations, and elements to draw out various colors and viewable definition through the lens. Some scope makers use “HD” to refer to “ED” indicating extra-low dispersion glass.
Single Glass Lens Finish Versus Multi-Coating
Various optic lenses can even have various finishes applied to them. All lenses generally have at least some type of treatment or coating applied to them prior to being used in a rifle scope or optic. This is due to the fact that the lens isn’t just a raw piece of glass. It becomes part of the carefully tuned optic. It requires a coating to be applied to it so that it will be optimally usable in lots of kinds of environments, degrees of sunshine (full VS shaded), and other shooting conditions.
Single covered lenses have a treatment applied to them which is typically a protective and improving multi-purpose treatment. This lens treatment can shield the lens from scratches while minimizing glare and other less advantageous things experienced in the shooting environment while sighting in with the optic. The quality of a single covered lens depends upon the scope producer and how much money you paid for it. Both the make and cost are signs of the lens quality.
Some scope makers similarly make it a point to define if their optic lenses are covered or “multi” covered. Being “much better” depends on the manufacturer’s lens treatment innovation and the quality of products used in developing the rifle scope.
Hydrophobic Optic Lens Finish
Water on a scope’s lens doesn’t assist with maintaining a clear sight picture through an optic in any way. Lots of top of the line and premium optic makers will coat their lenses with a hydrophobic or hydrophilic finishing. The Steiner Optics Nano-Protection is a fine example of this type of treatment. It provides protection for the surface area 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 roll off of the scope to maintain a clear, water free sight picture.
Choices for Installing Rifle Glass on Long Guns
Installing options for scopes can be found in a couple of options. There are the standard scope rings which are separately mounted to the scope and one-piece mounts which cradle the scope. These different kinds of mounts also typically can be found in quick release versions which use manual levers which permit rifle operators to rapidly install and remove the glass.
Rifle Optic Mounting Solutions with Hex Key Rings
Basic, clamp-on type mounting scope rings use hex head screws to position to the flattop design Picatinny scope mounting rails on the tops of rifles. These styles of scope mounts use two independent rings to support the scope, and are normally constructed from 7075 T6 billet aluminum which are developed for far away precision shooting. This form of scope mount is ideal for rifle systems which need to have a resilient, unfailing mount which will not shift no matter how much the scope is moved or jarring the rifle takes. These are the design of mounts you want for a devoted scope setup on a far away hunting or interdiction rifle that will hardly ever need to be changed or adjusted. Blue 242 Loctite threadlocker can additionally be used on the screws to stop the hex screw threads from backing out after they are installed tightly in place. An example of these rings are the 30mm style from Vortex Optics. The set usually costs around $200 USD
Optic Mounts with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to quickly attach and detach a scope from a rifle before reattaching it to a different rifle. Several scopes can also be switched out if they all use a compatible style mount. These types of mounts are convenient for long guns which are carried a lot, to swap out the optic from the rifle for protecting the scope, or for scopes which are used in between several rifles.
About Scope Tube Sealing and Gas Purging
Moisture inside your rifle scope can spoil a day on the range and your pricey optic by resulting in fogging and creating residue within the scope’s tube. The majority of optics prevent moisture from going into the scope tube with a system of sealing O-rings which are water resistant. Typically, these scopes can be submerged beneath 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be plenty of moisture content avoidance for basic use rifles for hunting and sporting purposes, unless you plan on taking your rifle on boats and are concerned about the optic still performing if it falls overboard and you can still find the firearm.
Gas Purged Rifle Scope Tubes
Another element of avoiding the accumulation of wetness inside of the rifle optic’s tube is filling the tube with a gas like nitrogen. Considering that this area is currently occupied by the gas, the glass is less altered by temperature level changes and pressure variations from the outdoor environment which could potentially enable water vapor to leak in around the seals to fill the vacuum which would otherwise exist. These are good qualities of a decent rifle scope to look for.
