Interestingly mine has "F/5" written on the back. Maybe it was a botched F/5 job that was re-figured later on or something.... or it was an F/5 originally, but then perhaps got sold to someone who wanted a shorter F/L for whatever reason....
btw, that's a nice rig you've got there, I would love to have one of those old school newts with the several finders on it to make it look all high tech and awesome
In an observatory ofcourse
