Tasco TRF3940 Rimfire 3–9x40mm Riflescope

User Manual - Page 3

For TRF3940.

PDF File Manual, 28 pages, Read Online | Download pdf file

TRF3940 photo
Loading ...
Loading ...
3
YOUR NEW RIFLESCOPE
Congratulations on your purchase of a Tasco
®
Rimfire™ riflescope! These models are ideal for use with rimfire ammo, in a wide
range of hunting and shooting applications. Tasco maintains absolute product integrity and quality control throughout the
entire design, production, and delivery cycle of these riflescopes. Mounting rings are included for your convenience.
WARNING: A SCOPE SHOULD NEVER BE USED AS A SUBSTITUTE FOR EITHER A BINOCULAR OR SPOTTING
SCOPE. IT MAY RESULT IN YOU INADVERTENTLY POINTING THE GUN AT ANOTHER PERSON.
KEY ELEMENTS OF A SCOPE
There are four major elements of a scope:
1. Objective Lens: This lens has three functions. First, it permits light to pass into the scope. Second, it determines resolution.
Generally, larger lenses allow more light to enter the scope and resolve details better than smaller ones. Finally, it forms an
image for the other lenses to magnify to a usable size. The image formed by this lens is upside down.
2. Erector System: The erector system serves three functions. Its primary function is to erect the image (that is, flips the image
right-side up) and align it to the reticle. During this process, primary magnification of the image takes place. These two
functions are the result of lens action.
The third function is a mechanical one. The erector lenses are housed in a tube that is fixed at one end, while the other end
of the tube is free to move and respond to dial adjustments. By moving the erector system, the point-of-aim of the scope is
adjusted to match the point-of-impact of the bullet.
3. Reticle: In simple terms, the aiming device around which the scope is built. This element replaces the iron sight system of
non-scoped rifles.
4. Ocular or Eye Lens: This element provides the secondary and final magnification of the image.
MOUNTING YOUR SCOPE
Your new scope, even with its technologically advanced design and features, will not perform at its best if not properly
mounted. One of the most important contributing factors to the accuracy of your scope and rifle is the quality of the mount and
the care with which mounting is done. Dependable mounts are included that attach your scope solidly to the rifle to provide
dependability and consistent accuracy. The supplied mounts are compatible with all Weaver and most Picatinny style rails.
Remember, not all scopes are compatible with all mounts on all rifles. If there is any doubt in your mind, you should seek the
advice of your local retailer or gunsmith.
WARNING: NEVER LOOK AT THE SUN THROUGH THE RIFLESCOPE (OR ANY OTHER OPTICAL INSTRUMENT).
IT MAY PERMANENTLY DAMAGE YOUR EYES.
Elevation Adjustment
Windage Adjustment
Ocular Lens
Fast Focus
Eyepiece
Power Change Ring
Objective Lens
Mounting Rings
PARTS GUIDE
ENGLISH
Loading ...
Loading ...
Loading ...