SMC PENTAX-6x7 1:5.6 500mm
Produced 1980-89. Serial Numbers 8209xxx - 8504xxx. Product No. -- Updated April 2024.
(Research Note: Since 2015 I have seen 1.90% (21 copies) of the total estimated 1,100 copies made.)
LENS PRODUCTION (∑ lenses) ∑n = 21 Serial Numbers observed in 7 Batches covering 390 SN min. < ∑ lenses < 1,817 SN max.
SN min. = accumulated total of serial numbers observed within 7 batches
SN max. = accumulated total of serial numbers observed between adjacent batches of other lenses.
SN min. = accumulated total of serial numbers observed within 7 batches
SN max. = accumulated total of serial numbers observed between adjacent batches of other lenses.
8209881 (1/ 1) 8247030 to 8247055 (2/ 25) 8250484 (1/ 1) |
Serial Numbers in 7 Batches
(n /SN range) 8290916 (1/ 1) 8420695 to 8420790 (6/ 95) |
8469635 to 8469844 (5/ 209) 8503983 to 8504041 (5/ 58) |