Description
Rifle Scope Product Details
Leupold Mark 4 ARD Anti-Reflection Device – 50mm
Designed to fit a Mark 4 scope, this ARD will reduce glare as effectively as a 7″ sunshade. Snaps into unthreaded, non-adjustable objectives. Features: – Eliminates reflection of light from the lens – Honeycomb cells reduce glare similar to a 7″ sunshade – Attaches directly to listed optic Specifications: – Fits: Mark 4 – Objective Size: 50mm – Material: High Impact, Low Glare Polymer – Finish: Matte Black
Rifle Scope Product Features
Eliminates reflection of light from the lens
Honeycomb cells reduce glare similar to a 7″ sunshade
Attaches directly to listed optic
About the Leupold Scope Maker
Leupold is a premium company for firearm scopes, optics, mounts, and other add-ons used for guns like rifles and long guns. They innovate and make their mounts and related products making the most of materials which are long lasting and durable. This includes the Leupold Mark 4 ARD Anti-Reflection Device – 50mm by Leupold. For additional shooting products, visit their site.
Information Optics
Rifle scopes permit you to exactly align a rifle at different targets by lining up your eye with the target at range. They accomplish this through magnification by making use of a set of lenses within the scope. The scope’s positioning can be adjusted to take into account various natural factors like wind speed and elevation increases to account for bullet drop.
The scope’s function is to help shooters understand precisely where the bullet will hit based on the sight picture you are seeing using the optic as you line up the scope’s crosshair or reticle with the target. Most contemporary rifle scopes and optics have around 11 parts which are found internally and on the exterior of the optic. These parts include the rifle scope’s body, lenses, elevation dials or turrets, objective focus rings, and other elements. See all eleven parts of a rifle scope.
Rifle Optic Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Considering the perfect type of rifle optic depends on what type of shooting you plan on doing.
Info on First Focal Plane Glass
Focal plane scopes (FFP) feature the reticle in front of the magnification lens. This causes the reticle to increase in size based on the level of magnification being used. The result is that the reticle measurements are the same at the enhanced distance as they are at the non magnified distance. As an example, one tick on a mil-dot reticle at 100 yards without having “zoom” is still the exact same tick at one hundred yards with 5x “zoom”. These types of scopes work for:
- Quick acquisition, far away kinds of shooting
- Shooting circumstances where estimations are very little
- Experienced shooters who understand their target “hold over” and also “lead” equations for their firearm
- Shooters who do not mind the reticle is bigger and uses up more visual sight space than a SFP reticle
Second Focal Plane Scope Info
Second focal plane optics (SFP) come with the reticle to the rear of the magnification lens. This causes the reticle to stay at the very same scale in connection with the volume of zoom being used. The effect is that the reticle dimensions adjust based upon the magnification used to shoot over lengthier distances given that the reticle measurements represent various increments which differ with the magnification level. 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. These particular types of scopes work for:
- Far away forms of shooting where shooters have additional time to make ballistic computations
- Shooting where most shots take place within shorter ranges and proximities
- Shooters who select a clearer optic sight picture with less space used up by the larger sized FFP reticle
About Scope Magnification
The extent of scope zoom you need depends on the style of shooting you intend to do. Practically every style of rifle optic offers some level of 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 optic is the “power” of the opic. This signifies what the shooter is checking out through the scope is amplified times the power factor of what can typically be seen by human eyes.
Info on Fixed Single Power Lens Rifle Glass
A single power rifle scope comes with a zoom number designator like 4×32. This suggests the magnification power of the scope is 4x power while the objective lens is 32mm. The magnification of this type of scope can not change considering that it is fixed.
Info About Variable Power Lens Rifle Optics
Variable power rifle scopes use variable power levels. The power change is accomplished by the power ring part of the scope near the rear of the scope by the eye bell.
The Power Level and Range of Scopes
Here are some suggested scope powers and the distances where they can be efficiently used. High power scopes will not be as useful as lower powered scopes considering that too much zoom can be a negative aspect depending on your shooting distance. The same concept applies to longer ranges where the shooter needs adequate power to see where to properly aim the rifle.
Rifle Optic Lens Coating
All modern rifle optic and scope lenses are layered. There are different types and qualities of finishings. When thinking about luxury rifle optics and scope systems, Lens coating can be a very important component of defining the rifle’s capability. The glass lenses are among the most significant parts of the scope due to the fact that they are what your eye sees through while sighting a rifle in on the point of impact. The coating on the lenses safeguards the lens exterior as well as assists with anti glare capabilities from excess sunshine and color discernibility.
HD Versus ED Rifle Glass Lens Coatings
Some scope suppliers also use “HD” or high-definition glass finishings that make the most of different processes, components, chemical substances, and polarizations to extract a wide range of color ranges and viewable definition through the lens. This HD finishing is typically used with more costly, high density lens glass which lowers light’s potential to refract through the lens glass. Some scope brands use “HD” to describe “ED” signifying extra-low dispersion glass. ED deals with how certain colors are presented on the chroma spectrum and the chromatic deviance or aberration which is also called color distortion or fringing. Chromatic aberration is often visible around objects with hard edges and outlines as light hits the item from various angles.
Single Rifle Scope Lens Covering Versus Multi-Coating
Different optic lenses can also have various coverings used to them. All lenses normally have at least some type of treatment or finish used to them prior to being used in a rifle scope or optic.
Single layered 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 covered lens depends on the scope designer and how much you spent for it. Both are signs of the lens quality.
Some scope manufacturers also make it a point to specify if their optic lenses are coated or “multi” covered. This indicates the lens has multiple treatments applied to them. If a lens gets multiple treatments, it can establish that a company is taking multiple actions to combat different natural elements like an anti-glare finishing, a scratch resistant anti-abrasion covering, followed by a hydrophilic finishing. This additionally doesn’t always suggest the multi-coated lens will perform much better than a single covered lens. Being “better” is dependent on the manufacturer’s lens treatment techniques and the quality of products used in creating the rifle scope.
Anti-water Coating for Optics
Water on a lens does not assist with maintaining a clear sight picture through a scope at all. Lots of top of the line and high-end scope companies will coat their lenses with a hydrophilic or hydrophobic anti-water finishing.
Optic Mounting Choices
Mounting solutions for scopes come in a few choices. There are the basic scope rings which are separately installed to the optic and one-piece mounts which cradle the scope. These various types of mounts also generally can be found in quick release variations which use toss levers which allow rifle operators to quickly mount and remove the scopes.
Rifle Optic Mounts with Hex Key Rings
Basic, clamp-on style mounting optic rings use hex head screws to install to the flattop style Picatinny scope mount rails on the tops of rifles. These varieties of scope mounts use a pair of individual rings to support the optic, and are made from 7075 T6 billet aluminum or similar materials which are designed for far away accuracy shooting. This kind of scope mount is excellent for rifles which need to have a long lasting, unfailing mount which will not shift despite how much the scope is moved about or abuse the rifle takes. These are the style of mounts you really want to have for a dedicated optics system on a far away hunting or tournament rifle that will pretty much never need to be modified or recalibrated. Blue 242 Loctite threadlocker can also be used on the mount’s screws to stop the hex screws from wiggling out after they are mounted securely in place. An example of these rings are the 30mm type from Vortex Optics. The set generally costs around $200 USD
Scope Mounts with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to rapidly remove a scope and attach it to a different rifle. Several scopes can also be swapped out if they all use a similar design mount. These types of mounts are convenient for rifles which are transferred a lot, to remove the optic from the rifle for protection, or for optics which are used between multiple rifles or are situationally focused.
About Optic Tube Sealing and Gas Purging
Wetness inside your rifle optic can mess up a day on the range and your highly-priced optic by inducing fogging and making residue inside of the scope’s tube. A lot of scopes protect against humidity from going into the optical tube with a system of sealing O-rings which are waterproof. Normally, these water-resistant scopes can be submerged under 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be ample humidity avoidance for conventional use rifles for hunting and sporting purposes, unless you anticipate taking your rifle on your motorboat and are worried about the scope still functioning if it goes over the side and you can still find the firearm.
Gas Purged Optic Tubes
Another element of preventing the accumulation of moisture within the rifle optic tube is filling the tube with a gas like nitrogen. Since this area is currently taken up by the gas, the optic is less affected by temp alterations and pressure distinctions from the outside environment which may potentially permit water vapor to seep in around the seals to fill the void which would otherwise exist. These are good qualities of a decent rifle scope to seek out.
