First focal plane vs second focal plane. Which do you prefer? #riflereviews #opticsreviews
The main difference between a first focal plane (FFP) scope and a second focal plane (SFP) scope is where the reticle is located in the scope and how it appears to the shooter.
In a first focal plane scope, the reticle is located in front of the magnification lens, and it changes size as the magnification is increased or decreased. This means that the reticle’s subtensions (distance between marks on the reticle) remain consistent regardless of the magnification setting. This makes it easier for the shooter to use the reticle for ranging, holdovers, and windage adjustments at any magnification.
In a second focal plane scope, the reticle is located behind the magnification lens, and it appears to remain the same size regardless of the magnification setting. This means that the reticle’s subtensions change with magnification, making it more difficult to use the reticle for ranging, holdovers, and windage adjustments at different magnification levels. However, SFP scopes tend to be less expensive than FFP scopes and are often preferred for hunting or other applications where quick target acquisition at lower magnifications is important.
In summary, FFP scopes are preferred by many long-range shooters because of their ability to use the reticle for ranging, holdovers, and windage adjustments at any magnification level. SFP scopes tend to be less expensive and are often preferred for hunting or other applications where quick target acquisition at lower magnifications is important.
