Last update on February 8, 2023 // Source: Amazon API
Rifle Scope Product Details
Vism Eco Mod3 4X Magnification 34mm Scope, Black
Rifle Scope Product Features
ECO MOD3 4x34mm scope, same popular ECO scope styling without the laser and LED NAV lights.
Glass etched urban tactical reticle with blue and red illumination for quick target acquisition.
Top mounted backup iron rear peep sight and fiber optic front sight post.
About the VISM Brand
VISM is a premium company for firearm scopes, optics, mounts, and other components used for firearms like rifles and long guns. They style and manufacture their scopes and related products working with building materials which are resilient and long lasting. This includes the Vism Eco Mod3 4X Magnification 34mm Scope, Black by VISM. For additional shooting items, visit their website.
What You Need to Know About Rifle Optics
Rifle scopes allow you to precisely aim a rifle at different targets by lining up your eye with the target over a range. They accomplish this through zoom by using a series of lenses within the scope. The scope’s positioning can be adapted for the consideration of various natural elements like wind and elevation increases or decreases to account for bullet drop.
The scope’s purpose is to understand exactly where the bullet will land based on the sight picture you are viewing through the optic as you line up the scope’s crosshair or reticle with the target. A lot of modern-day rifle scopes and optics have about 11 parts which are arranged within and externally on the scope body. These optic pieces include the rifle scope’s body, lenses, adjustment dials, focus rings, and other elements. Learn about the eleven parts of scopes.
Rifle Scope Types
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. The form of focal plane an optic has identifies where the reticle or crosshair lies in relation to the scopes zoom. It literally suggests the reticle is located behind or before the magnification lens of the scope. Picking the most reliable sort of rifle optic depends upon what type of shooting or hunting you anticipate doing.
First Focal Plane Optics
Focal plane scopes (FFP) come with the reticle in front of the magnifying lens. This triggers the reticle to increase in size based upon the extent 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 100 yards without “zoom” is still the very same tick at one hundred yards with 5x “zoom”. These types of scopes are valuable for:
- Quick acquisition, far away types of shooting
- Shooting situations where estimations are small
- Experienced shooters who recognize their target “hold over” plus “lead” correlations for their long guns
- Shooters who do not mind the reticle is enlarged and uses up more visual sight area than a SFP reticle
Second Focal Plane Scopes
Second focal plane optics (SFP) come with the reticle to the rear of the magnification 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.
- Long distance styles of shooting where shooters have additional time to make ballistic computations
- Shooting where most shots happen within much shorter ranges and spaces
- Shooters who want a clearer optic picture without area used up by the enlarged FFP reticle
About Rifle Optic Magnification
The quantity of magnification a scope offers is figured out by the diameter, density, and curvatures of the lenses inside of the rifle scope. The magnification of the scope is the “power” of the scope.
Fixed Single Power Lens Optics
A single power rifle scope or optic will have a magnification number designator like 4×32. This implies the magnification power of the scope is 4x power while the objective lens is 32mm. The magnification of this type of optic can not fluctuate considering that it is a fixed power scope.
Variable Power Lens Optic Info
Variable power rifle scopes have adjustable power. These types of scopes will list the magnification degree in a format like 2-10×32. These numbers imply the zoom of the scope can be changed between 2x and 10x power. This also involves the powers in-between 2 and 10. The power modification is achieved by employing the power ring part of the scope near the rear of the scope by the eye bell piece.
Power Levels and Range Correlations
Here are some advised scope powers and the ranges where they may be efficiently used. High power scopes will not be as beneficial as lower magnification level optics due to the fact that too much zoom can be a bad thing. The same applies to extended ranges where the shooter needs to have enough power to see precisely where to properly aim the rifle at the target.
Info on Optic Lens Finishing
All current rifle glass lenses are coated. Lens covering is an essential element of a shooting system when purchasing high end rifle optics and scope equipment.
HD Versus ED Lens Coatings
Some scope manufacturers likewise use “HD” or high-definition lens finishings which use various procedures, aspects, chemicals, and polarizations to draw out different colors and viewable quality through the lens. Some scope makers use “HD” to refer to “ED” implying extra-low dispersion glass.
Single Finish Versus Multi-Coating
Various scope lenses can even have different coatings applied to them. All lenses usually have at least some kind of treatment or finish applied to them before being used in a rifle scope or optic assembly. Because the lens isn’t just a raw piece of glass, they require performance enhancing coatings. It becomes part of the finely tuned optic. It requires a coating to be applied to it so that the lens will be efficiently usable in numerous kinds of environments, degrees of light (full light VS shaded), and other shooting conditions.
This lens treatment can offer protection to the lens from scratches while reducing glare and other less advantageous 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 producers also make it a point to define if their optic lenses are coated or “multi” covered. This indicates the lens has had several treatments applied to them. If a lens gets several treatments, it can show that a company is taking numerous actions to fight various natural factors like an anti-glare coating, a scratch resistant anti-abrasion covering, followed by a hydrophilic finishing. This additionally does not always mean the multi-coated lens will perform better than a single coated lens. Being “better” is dependent on the manufacturer’s lens treatment innovation and the quality of glass used in building the rifle glass.
What to Know About Anti-water Covering
Water on a scope’s lens doesn’t improve maintaining a clear sight picture through a scope at all. Lots of top of the line and high-end scope manufacturers will coat their lenses with a hydrophilic or hydrophobic coating. The Steiner Optics Nano-Protection is a good example of this kind of treatment. It provides protection for the surface area of the Steiner optic lens so the H2O particles can not bind to it or produce surface tension. The result is that the water beads sheet off of the scope to maintain a clear, water free sight picture.
Alternatives for Mounting Rifle Optics on Long Guns
Mounting solutions for scopes can be found in a few options. There are the basic scope rings which are individually installed to the optic and one-piece mounts which cradle the scope. These different kinds of mounts also typically can be found in quick release variations which use manual levers which allow rifle shooters to quickly mount and dismount the scope.
Hex Key Rifle Optic Rings
Normal, clamp design mounting scope rings use hex head screws to mount to the flattop style Picatinny scope mount 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 are created for long range precision shooting. This type of scope mount is wonderful for rifles which need a long lasting, sound mounting solution which will not move no matter how much the scope is moved or abused.
Quick-Release Cantilever Scope 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. Multiple 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 protection, or for optics which are used between numerous rifles or are situationally focused.
Info Around Glass Tube Sealing and Gas Purging
Moisture inside your rifle glass can wreck a day on the range and your pricey optic by resulting in fogging and developing residue inside of the scope’s tube. The majority of scopes prevent humidity from entering the optical tube with a series of sealing O-rings which are waterproof. Generally, these water resistant optics can be immersed within 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be plenty of humidity avoidance for standard use rifles, unless you anticipate taking your rifle on boats and are worried about the optic still functioning if it goes over the side and you can still recover the rifle.
Gas Purged Rifle Scope Tubes
Another part of preventing the buildup of wetness within the rifle scope tube is filling the tube with a gas like nitrogen. Given that this space is already occupied by the gas, the optic is less influenced by temperature shifts and pressure variations from the external environment which may potentially enable water vapor to permeate in around the seals to fill the vacuum which would otherwise be there. These are good qualities of a good rifle scope to look for.