Description
Rifle Scope Product Details
ohhunt LR FFP 4.7-28X50 SFIR Riflescope First Focal Plane Side Parallax Glass Etched Reticle Lock Reset Scope
Magnification:4.7X-28X
Objective Lens (mm):50
Net Weight(g):860
Length(mm):338 with Sunshade 414mm
One”piece Tube: Yes
Eye Relief(inch):3.14-4.13
Tube Diameter(mm):30
Field of View (ft@100yds) 25.6ft@4.7x-4.26ft@28x
Click Value:1/8 MOA
Max.Elevation/Windage(moa): 60 (Example: 50 MOA is roughly 25 MOA from center.)
Parallax Setting:15 to Inf
Rifle Scope Product Features
Magnification: 4.7-28 times; Length: (338 with Sunshade 414mm); Objective: 50mm; Field of View (ft @ 100yds): 25.6ft @ 4.7x-4.26ft @ 28x Click Value: 1/8 MOA
ohhunt LR FFP 4.7-28X50 SFIR scope can create parallax-free views from 15 yards to infinity. A moderately damped focusing assembly allows the range to be focused quickly and accurately.
Provide with 20mm Picatinny Rings. please leave message if you need 11mm Picatinny Rings.
About the ohhunt Company
ohhunt is a premium supplier for long gun scopes, optics, mounting solutions, and other accessories used for firearms like rifles and long guns. They innovate and make their scopes and related products by applying elements which are durable and long lasting. This includes the ohhunt LR FFP 4.7-28X50 SFIR Riflescope First Focal Plane Side Parallax Glass Etched Reticle Lock Reset Scope by ohhunt. For more shooting products, visit their site.
Info About Rifle Scopes
Rifle scopes allow you to precisely align a rifle at various targets by lining up your eye with the target over a range. They do this through zoom by using a series of lenses within the scope. The scope’s alignment can be adjusted for the consideration of different natural things like wind speed and elevation increases or decreases to make up for bullet drop.
The scope’s function is to understand exactly where the bullet will hit based on the sight picture you are seeing with the scope as you line up the scope’s crosshair or reticle with the intended point of impact. The majority of contemporary rifle scopes have about eleven parts which are found internally and on the exterior of the scope. These optic pieces include the rifle scope’s body, lenses, windage and elevation dials or turrets, objective focus rings, and other components. Learn about the eleven parts of optics.
The Varieties of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” kind of scopes. The sort of focal plane a scope has decides where the reticle or crosshair is located relative to the scopes zoom. It simply implies the reticle is situated behind or before the magnifying lens of the scope. Looking for the most desired sort of rifle optic is based on what sort of shooting you anticipate undertaking.
First Focal Plane Scopes
Focal plane scopes (FFP) include the reticle in front of the zoom lens. These kinds of scopes are useful for:
- Quick acquisition, long distance kinds of shooting
- Shooting circumstances where computations are minimal
- Experienced shooters who understand their aim point “hold over” plus “lead” ratios for their long guns
- Shooters who don’t mind the reticle is enlarged and requires more visual eyesight room than a SFP reticle
Info on Second Focal Plane Optics
Second focal plane scopes (SFP) include the reticle behind the magnification lens. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick measurement would be 1/5th of the non “zoom” tick measurement.
- Long distance kinds of shooting where shooters have additional time to make ballistic estimations
- Shooting where most of the shots occur within shorter spaces and ranges
- Shooters who select a clearer optic picture with less space used up by the larger size FFP reticle
Rifle Glass Zoom
The quantity of scope zoom you need on your scope depends upon the form of shooting you intend to do. Nearly every kind of rifle optic supplies some degree of zoom. The quantity of zoom a scope gives is identified by the diameter, density, and curvatures of the lens glass inside of the rifle optic. The magnifying level of the optic is the “power” of the scope. This suggests what the shooter is looking at through the scope is amplified times the power factor of what can typically be seen by human eyes.
Fixed Single Power Lens Scope Info
A single power rifle scope and optic comes with a zoom number designator like 4×32. This means the magnification power of the scope is 4x power and the objective lens is 32mm. The magnification of this kind of scope can not adjust because it is set from the factory.
Variable Power Lens Rifle Optic Facts
Variable power rifle scopes can be tweaked between magnified levels. The power adjustment is handled using the power ring part of the scope near the rear of the scope by the eye bell.
The Power and Range of Glass
Here are some suggested scope power levels and the ranges where they can be effectively used. Highly magnified rifle scope glass will not be as effective as lower magnification level scopes because too much magnification can be a negative aspect depending on your shooting distance. The same concept relates to extended distances where the shooter needs to have enough power to see where to properly aim the rifle at the target.
Details on Lens Finishes
All top teir rifle optic lenses are layered. Lens finishing can be a vital aspect of a shooting system when considering high end rifle optics and scope systems.
HD Versus ED Glass Lens Coatings
Some optic producers will also use “HD” or high-definition lense coatings which employ different processes, rare earth compounds, aspects, and polarizations to draw out separate colors and viewable target definition through the lens. This HD finish is normally used with more costly high density lens glass which brings down light’s ability to refract by means of the lens glass. Some scope manufacturers use “HD” to describe “ED” implying extra-low dispersion glass. ED deals with how colors are presented on the chromatic spectrum and the chromatic aberration which is also called color distortion or fringing. Chromatic aberration may be visible around objects with hard shapes as light hits the object from specific angles.
Single Finishing Versus Multi-Coating for Rifle Scopes
Various optic lenses can likewise have different coverings applied to them. All lenses typically have at least some type of treatment or finish applied to them prior to being used in a rifle scope or optic.
This lens treatment can safeguard the lens from scratches while decreasing glare and other less useful things experienced in the shooting environment while sighting in with the scope. The quality of a single covered lens depends on the scope maker and how much you paid for it.
Some scope manufacturers also make it a point to define if their optic lenses are covered or “multi” covered. Being “much better” depends on the producer’s lens treatment technology and the quality of materials used in constructing the rifle scope.
Anti-water Coating for Optics
Water on a lens doesn’t support keeping a clear sight picture through a scope at all. Lots of top of the line or high-end scope producers will coat their lenses with a hydrophobic or hydrophilic finishing. The Steiner Optics Nano-Protection is a good example of this kind of treatment. It deals with the exterior of the Steiner glass lens so the water molecules can not bind to it or create surface tension. The result is that the water beads sheet off of the scope to maintain a clear, water free sight picture.
Scope Installation Alternatives
Mounting approaches for scopes can be found in a couple of options. There are the standard scope rings which are separately installed to the optic and one-piece mounts which cradle the scope. These different kinds of mounts also normally come in quick release versions which use throw levers which allow rifle shooters to quickly install and remove the scope.
Glass Mounts 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 separate rings to support the optic, and are often made from 7075 T6 billet aluminum which is developed for long range precision shooting. This type of scope install is wonderful for rifles which require a durable, sound mounting solution which will not move no matter how much the scope is moved or abuse the rifle takes.
Quick-Release Cantilever Rifle Scope Rings
These types of quick-release rifle scope mounts can be used to quickly connect and detach a scope from a rifle before reattaching it to a different rifle. Numerous scopes can even be switched out if they all use a compatible style mount. These types of mounts are convenient for rifle platforms which are carried a lot, to remove the optic from the rifle for protection, or for scopes which are used in between several rifles.
Sealing and Gas Purging for Optic Tubes
Wetness inside your rifle scope can wreck a day on the range and your pricey optic by resulting in fogging and producing residue inside of the scope tube. Most scopes prevent humidity from entering the optical tube with a system of sealing O-rings which are water resistant. Typically, 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 moisture content avoidance for common use rifles, unless you anticipate taking your rifle on your motorboat and are concerned about the optic still functioning if it is submerged in water and you can still salvage the firearm.
Info Around Rifle Optic Tube Gas Purging
Another element of avoiding the buildup of moisture inside of the rifle optic’s tube is filling the tube with a gas like nitrogen. Because this area is currently taken up by the gas, the optic is less affected by condition changes and pressure variations from the outdoor environment which could potentially allow 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 look for.
