Description
Rifle Scope Product Details
Schmidt Bender Zenith 2.5-10×56 FD7 Rifle Scope with BDC H
Schmidt Bender Zenith scope 2.5-10×56 FD7 .1mrad CW 672-811-707-03-03
Rifle Scope Product Features
About the Schmidt & Bender Brand
Schmidt & Bender is a premium company for firearm scopes, optics, mounting solutions, and other components used for firearms like rifles and long guns. They style and manufacture their mounts and related products by choosing materials which are durable and long lasting. This includes the Schmidt Bender Zenith 2.5-10×56 FD7 Rifle Scope with BDC H by Schmidt & Bender. For additional shooting items, visit their website.
What You Need to Know About Rifle Glass
Rifle scopes allow you to precisely aim a rifle at various targets by lining up your eye with the target at range. They do this through magnifying the target by utilizing a series of lenses within the scope. The scope’s positioning can be dialed in to account for various ecological aspects like wind and elevation increases or decreases to account for bullet drop.
The scope’s purpose is to help shooters understand exactly where the bullet will land based upon the sight picture you are viewing through the optic as you align the scope’s crosshair or reticle with the intended point of impact. Most contemporary rifle scopes and optics have around eleven parts which are found inside and outside of the optic. These parts include the rifle scope’s body, lenses, elevation dials or turrets, focus rings, and other parts. Learn about the eleven parts of scopes.
The Styles of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” kind of scopes. The kind of focal plane an optic has determines where the reticle or crosshair is located in relation to the optic’s magnifying adjustments. It actually suggests the reticle is behind or before the magnifying lens of the scope. Choosing the most effective type of rifle optic is based on what type of shooting you intend on doing.
First Focal Plane Optic Details
First focal plane scopes (FFP) come with the reticle in front of the zoom lens. This triggers the reticle to increase in size based on the level of magnification being used. The benefit is that the reticle measurements are the same at the magnified distance as they are at the non magnified range. One tick on a mil-dot reticle at 100 yards without “zoom” is still the very same tick at one hundred yards by using 5x “zoom”. These types of scopes work for:
- Quick acquisition, far away kinds of shooting
- Shooting situations where estimations are minimal
- Experienced shooters who have an idea for their target “hold over” and also “lead” ratios for their long guns
- Shooters who don’t mind the reticle is enlarged and takes up more visual eyesight area than a SFP reticle
Second Focal Plane Glass
Second focal plane optics (SFP) feature the reticle behind the zoom lens. This induces the reticle to stay at the same dimensions in relation to the volume of magnification being used. The end result is that the reticle dimensions alter based on the magnification chosen to shoot over greater distances because the reticle measurements represent distinct increments which vary with the zoom. In the FFP illustration with the SFP glass, the 5x “zoom” one hundred yard tick measurement would be 1/5th of the non “zoom” tick measurement. These particular sorts of optics are useful for:
- Long distance styles of shooting where shooters have extra time to make ballistic computations
- Shooting where most shots happen within shorter ranges and spaces
- Shooters who desire a clearer optic sight picture without room taken up by the enlarged FFP reticle
Zoom for Rifle Glass
The extent of scope zoom you need on your scope depends upon the kind of shooting you choose to do. Almost every style of rifle optic delivers some amount of zoom. The volume of zoom a scope offers is determined by the diameter, thickness, and curves of the lens glass inside of the rifle optic. The magnifying level of the optic is the “power” of the opic. This denotes what the shooter is observing through the scope is amplified times the power factor of what can generally be seen by human eyes.
Info on Single Power Lens Rifle Glass
A single power rifle scope uses 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 fluctuate considering that it is set from the factory.
Adjustable Power Lens Glass Details
Variable power rifle scopes can be modified between magnified levels. The power modification is handled by using the power ring part of the scope near the rear of the scope by the eye bell.
The Power and Range Correlation of Scopes
Here are some recommended scope power settings and the distances where they may be effectively used. High power scopes will not be as useful as lower magnification level glass considering that too much magnification can be a bad thing. The exact same idea applies to longer ranges where the shooter needs to have enough power to see exactly where to best aim the rifle.
Details on Optic Lens Coatings
All modern rifle scope lenses are covered. Lens finishing can be a significant aspect of a rifle system when looking at high end rifle optics and scope equipment.
Info on Glass Lens Coatings – HD Versus ED
Some scope producers also use “HD” or high-definition glass finishes that apply different processes, aspects, polarizations, and chemicals to enhance a wide range of color ranges and viewable target visibility through the lens. This HD finish is often used with more costly, high density lens glass which decreases light’s ability to refract by means of the lens glass. Some scope vendors use “HD” to describe “ED” indicating extra-low dispersion glass. ED deals with how certain colors are presented on the chroma spectrum and the chromatic aberration which is also called color distortion or fringing. Chromatic aberration can be obvious over items with well defined shapes as light hits the item from specific angles.
Single Covering Versus Multi-Coating for Rifle Glass
Different optic lenses can also have different coverings applied to them. All lenses usually have at least some kind of treatment or coating applied to them prior to being used in a rifle scope or optic assembly. This is because the lens isn’t just a raw piece of glass. It is part of the finely tuned optic. It must have a coating placed on it so that it will be optimally usable in lots of kinds of environments, degrees of sunlight (full light VS shade), and other shooting conditions.
This lens treatment can offer protection to the lens from scratches while reducing glare and other less beneficial 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 makers similarly make it a point to define if their optic lenses are covered or “multi” coated. Being “much better” depends on the manufacturer’s lens treatment technology and the quality of products used in constructing the rifle scope.
Hydrophobic Rifle Glass Lens Coating
Water on a lens doesn’t assist with maintaining a clear sight picture through a scope at all. Many top of the line and military grade scope makers will coat their lenses with a hydrophilic or hydrophobic covering.
Choices for Mounting Optics on Firearms
Installing solutions for scopes can be found in a few options. There are the basic scope rings which are individually mounted to the scope and one-piece mounts which cradle the scope. These different kinds of mounts also generally come in quick release versions which use throw levers which permit rifle operators to quickly mount and dismount the scope.
Hex Key Rifle Glass Ring Mounting Solutions
Standard, clamp style mounting scope rings use hex head screws to mount to the flattop style Picatinny scope installation rails on rifles. These types of scope mounts use a couple of separate rings to support the optic, and are made from 7075 T6 billet aluminum which is created for long distance precision shooting. This type of scope install is great for rifles which require a long lasting, rock solid mount which will not move no matter how much the scope is moved or abuse the rifle takes.
Scope Mounting Solutions with Quick-Release Cantilever Rings
These kinds of quick-release rifle scope mounts can be used to quickly connect and detach a scope from a rifle. Several scopes can also be switched out if they all use a similar designed mount. The quick detach design is CNC crafted from anodized 6061 T6 aluminum and the mounting levers attach nicely to a flat top style Picatinny rail. This enables the scope to be sighted in while on the rifle, taken off of the rifle, and remounted while preserving the original sighting settings. These kinds of mounts are useful and convenient for rifles which are transported a lot, to remove the scope from the rifle for protection, or for sight systems which are chosen for use in between several rifles. An example of this mount style is the 30mm mount designed by the Vortex Optics brand. It generally costs around $250 USD
Sealing and Gas Purging for Rifle Scope Tubes
Moisture inside your rifle glass can destroy a day of shooting and your costly optic by inducing fogging and developing residue inside of the scope’s tube. Most scopes protect against wetness from getting in the scope tube with a series of sealing O-rings which are waterproof. Typically, these water-resistant scopes can be submerged underneath 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be ample wetness avoidance for conventional 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 rescue the firearm.
About Scope Tube Gas Purging
Another part of preventing the buildup of wetness inside of the rifle optic tube is filling the tube with a gas like nitrogen. Because this space is currently occupied by the gas, the optic is less altered by temp alterations and pressure distinctions from the outdoor environment which may potentially enable water vapor to leak in around the seals to fill the void which would otherwise exist. These are good qualities of a decent rifle scope to seek out.
