S u p e r - M u l t i - C o a t e d  T A K U M A R   1 : 4.5 / 5 0 0    
Produced 1971 to 1975. Serial Numbers 3925xxx - 8029xxx. AOCo Product No. 43661. Honeywell Pentax Cat.No.7274. Updated Nov. 2025.

(Research Note: Since 2010 I have seen 5.41% (322 copies) of the total estimated 5,950 copies made.)

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INTRODUCTION

DESCRIPTION

VARIATION

NOTES

1. ​Serial numbers do not overlap with others of this focal length.

LENS PRODUCTION  (∑ lenses)  ∑n = 322 Serial Numbers observed in 42 batches covering 3,754 SN min. < ∑ lenses <8,156 SN max.
SN min. = accumulated total of serial numbers observed within 42 batches
SN max. = accumulated total of serial numbers observed between adjacent batches of other lenses.

​
366 (43660)​ SN ends
3925360 to 3925409 (4/ 49)
3925505 (1/ 1)
3925588 to 3925639 (3/ 51)
3925995 to 3926000 (3/ 5)
4900257 to 4900385 (6/ 128)
4900701 to 4900800 (9/ 99)
4901007 to 4901009 (2/ 2)
4901554 to 4901601 (5/ 47)
4902792 to 4902965 (15/ 173) 
4903163 4903319 (13/ 156) 
4908363 to 4908543 (12/ 181)
5112519 (1/ 1) 
5113781 (1/ 1)
5522280 to 5522458 (14/ 178)
▲ 

Serial Numbers in 42 Batches 
(n /SN range)
▼ 
5524953 to 5525127 (18/174)
5624890 to 5625029 (2/ 139) 
6090722 (1/ 1)
6102489 to 6102547 (9/ 59)
6105327 to 6105422 (5/ 95)
6106848 to 6106880 (2/ 32)
6110990 to 6111063 (9/ 73)
6113635 to 6113812 (14/ 177)
6118003 to 6118156 (11 / 153)
6739597 to 6739848 (27/ 251)
7123014 to 7123081 (14/ 67)
7126020 to 7126114 (11/ 94)
7219492 (1/ 1)
7372641 to 7372790 (9/ 149)

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​
7373045 to 7373117 (9/ 72)
7548059 (1/ 1)
7549841 to 7549940 (7/ 99)
7727227 to 7727312 (6/ 85)
7729113 to 7729233 (15/ 120)
8017333 (1/ 1)
8017944 to 8018088 (10/ 144)
8019843 to 8019864 (3/ 21)
8020717 (1/ 1)
8020963 to 8021005 (4/ 42)
8022906 to 8023022 (9/ 116)
8026255 to 8026340 (11/ 85)
8027021 to 8027112 (11/ 91)
8029415 to 8029763 (12/ 348)