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Frequently Asked Questions

Display By Topic:
General Questions and Technical Informations
Laser Sights
Measurements and Technical Informations
Red Dot Sights
Rifle Scopes
Spotting Scopes

Q: What is Eye Relief?
A: It is the optimum distance that a scope can be held away from the eye and still provides 100% of the field of view. Many of BSA's riflescopes have long eye relief, essential for keeping a safe distance from hard-kicking magnum rifles.

Q: What is Field of View?
A: It is the diameter (side to side view) of the circular field seen through a scope. This distance is usually expressed in terms of a certain width at 100 yards.

Q: What is Shadow Black finish?
A: BSA's Shadow Black coating is a special heat process that bonds a strong rubber skin directly onto the aluminum, making a beautiful, non-glare, soft black finish.

Q: What is the Exit Pupil?
A: It is the diameter of the column of light that exits from the eyepiece of the scope. The larger the exit pupil, the brighter the image appears and the easier it is to find quickly.

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