Assertion: scope's reticle | /r/HasProperty | placed
Facets:
value: forward of the erector system
type: OTHER
Source sentences:
text: Telescopic sights based on refracting telescopes using image erector lenses to present to the user with an upright image have two planes of focus where a reticle can be placed: at the focal plane between the objective and the image erector lens system (the First Focal Plane (FFP)), or the focal plane between the image erector lens system and the eyepiece (the Second Focal Plane (SFP)).
text: The first focal plane design means the reticle is placed forward of the erector system.