Fr Models; Standard Focus - RayTek MARATHON FA Operating Instructions Manual

3.5.2 FR Models
3.5.2.1 Standard Focus
Distance D to Object [mm]
D:S = 20:1 at focus point
Marathon Series FA/FR
[inch]
FR1A SF
Distance D to Object [mm]
D:S = 65:1 at focus point
Figure 8: Standard Focus Spot Size Charts for FR models
Technical Data
Distance D to Object [mm]
D:S = 40:1 at focus point
[inch]
FR1C SF
[inch]
FR1B SF
11