https://unchartedwilds.com/first-focal-plane-vs-second-focal-plane-rifle-scopes-ffp-vs-sfp
First Focal Plane vs. Second Focal Plane Rifle Scopes (FFP vs. SFP) | Uncharted Wilds
Feb 6, 2024 - A first focal plane scope's reticle grows or shrinks proportionally the scope's magnification. With second focal plane scopes, the reticle remains the same...
first focal planerifle scopesvssecond
https://www.zeiss.com/photonics-and-optics/us/precision-shooting/products/first-focal-plane-riflescopes.html
First Focal Plane Riflescopes | ZEISS Precision Shooting
first focal planeriflescopeszeissprecisionshooting