SMC PENTAX 67 ZOOM 1:5.6  90 ~ 180mm
Production started 2001. Serial Numbers 8786xxx - 8827xxx.  Updated April 2024.

(Research Note: Since 2015 I have seen 1.82% (130 copies) of the total estimated 7,200 copies made.)

LENS PRODUCTION  (∑ lenses)  ∑n =130 Serial Numbers observed in 34 Batches covering 3,890 SN min. < ∑ lenses < 10,433 SN max.
SN min. = accumulated total of serial numbers observed within 34 batches
SN max. = accumulated total of serial numbers observed between adjacent batches of other lenses.

​
8619351 to 8619403 (6/ 52)
8621378 (1/ 1)
8786387 to 8786512 (2/ 125)
8787292 to 8787993 (20/701)
8789322 to 8790338 (26/1016)
8790347 to 8790732 (13/385)
8796763 to 8796977 (3/ 214)
8799877 to 8799947 (2/ 70)
8810032 to 8810087 (2/ 55)
8810443 to 8810603 (5/ 160)
8810862 to 8811022 (2/ 160)

 Serial Numbers in 34 Batches 
(n /SN range)
​
8811781 (1/ 1)
8811901 (1/ 1)
8812001 to 8812131 (4/ 130)
8812186 to 8812361 (4/175)
8814306 (1/ 1)
8814716 (1/ 1)
8816701 (1/ 1)
8816871 (1/ 1)
8817101 to 8817246 (5/145)
8819158 to 8819163 (2/ 5)
8819188 to 8819203 (2/ 15)
8819393 (1/ 1)

​
8819428 (1/ 1)
8819458 (1/ 1)
8819623 (1/ 1)
8819668 (1/ 1)
8819718 to 8819728 (2/ 10)
8821147 8821197 (3/ 50)
8822797 (1/ 1)
8823958 to 8824258 (2/ 300)
8824388 (1/ 1)
8824498 (1/ 1)
8827054 to 8827161 (10/107)