FFP Brief Introduction: Most scopes have the reticle fitted in the second focal plane (near the eyepiece). While, presently it has always been the practice to fit the reticle in the first focal plane (the reticle increases its size when change the magnification from low to high). Each system has its advantages.
The advantage with telemetric reticles (like rangefinder & Mil-dot etc) is that the target image and distance between dots remains constant even when changing magnification. It is the system that is widely used by the TOP military suppliers now.
The following diagram A and B is for your reference upon the reticle size change when magnification change
Code: SCFF-06 Monarch Rifle Scope Magnification: 8-32x Objective Lens Dia: 56mm Ocular Lens Dia: 34mm Ocular Length: 56mm Exit Pupil: 1.7-7.0 mm Length: 450mm (17.7 inch, without sunshade) Weight (net): 1.01 KG (35.6 ounce) Eye Relief: 81-100 mm (3.2-3.9 Inch) , long eye relief Field of View (ft@100yds): 3.6-14.2 Field of View (M@ 100M): 1.1-4.4 Field of View (@100yds):0.7-2.7° Num of Lens: 11 Optics Coating: Fully-Multi Coated to eliminate glare and maximize light transmission Parallax: ±0.125 Side Focus Range: 15 Yard to unlimited Reticle: Front Focal Plan Etched Mil-Dot Glass Reticle Elevationn Range: ±15 MOA Windage Range: ±15 MOA 5 levels green and red brightness illumination system 30mm Hammer-forged Monotube Shock proof (1000g), water proof (at 300mm and 54 degree) and fog proof (Nitrogen Purged) High-durability aluminum alloy in black matt and beautiful complement Feature 1/8 M.O.A direct high finger windage and elevation turrets adjustments with audible clicks for greater precision Fast focus eyepiece at olucar lens adjustment (Diopter compensation -3 to 2) Free Fittings involved: 30mm Weaver Mount (dafault) or dovetail mount, K9 Glass Flip-up Caps, Sunshade and Fine Package Vector Optics and made in China under our strict quality control
Vector Optics Monarch 8-32x56 First (Front) Focal Plane Rifle Scope