What does PFR stand for?
PFR stands for "Prime Focal Ratio"
How to abbreviate "Prime Focal Ratio"?
"Prime Focal Ratio" can be abbreviated as PFR
What is the meaning of PFR abbreviation?
The meaning of PFR abbreviation is "Prime Focal Ratio"
What does PFR mean?
PFR as abbreviation means "Prime Focal Ratio"
