I got a Reflex-Rolleinar 500/8 with a minimum focus distance of 2.8 meter ( 10 in feet) instead the reported 1.5 meter ( 5 in feet), other difference are no 500mm written in green and just "Japan" instead "made in Japan".
Serial number is 8800xxx in an ebay auction I see listed a 500 with standard specs with a lower s/n 6400xxx, is my lens newer?
I know that should be made by Tokina but googling on specs on Tokina 500 I came up always with min. distance of 1.5 m.
Is not my only Rolleinar out of specs on Report 4 for the 400/5.6 is written made only in QBM IV my is QBM III.
If someone has some information about the 500 is welcome.