It seems no matter what how many lenses we know about, there will always be more showing up. Trying to fit them into my previous scheme was going to mean that either ID numbers would keep changing or newly discovered lenses would have to be appended at the end of the list, wrecking any logical order. Neither outcome is terribly desirable.
Initially, I had thought that renumbering lenses could occur up until the establishment of a fixed web resource. But the information in this thread has proved too popular. The codes have started to enter common usage. I don't want to screw people up by renumbering indefinitely.
I have come up with a compromise system that necessitates renumbering some of the lenses
one last time. The first thing I have done is removed all the KA mount lenses into their own section. Their IDs will start with "A". In some cases there will be an similar lens in the K and A sections, identical in all respects except their mount. But that is no different from before, since there were already similar lenses in the M and K sections.
This alteration seems logical and useful to me, since often the first thing people want to know is the mount.
The second main change is that the first number after that letter now indicates the manufacturer, more or less. K0x lenses are Komine, K1x are Kiron and K2x are everyone else. Of course this scheme will collapse if we get more than ten lenses in a given mount from the same manufacturer, but I hope not!
I should have renumbered K01 to K03 but did not do so, since these IDs are referred to quite often elsewhere. I am sorry that the previous fast K04 has become K10, since that code was also in common use.
I trust these changes meet your approval. I repeat that
the IDs will not change again. The only possible exception is for those few lenses where the manufacturer is not known.
K-mount:
K01 : Vivitar / 28MM 1:2.0 / MC / CLOSE FOCUS WIDE ANGLE / NO. 28xxxxxx / Ø49MM [Komine] *
K02 : Vivitar / 28MM 1:2.8 / MC / CLOSE FOCUS WIDE ANGLE / NO. 28xxxxxx / Ø49MM [Komine]
K03 : Vivitar / 28MM 1:2.8 / MC / WIDE ANGLE / NO. 28xxxxxx / Ø49MM [Komine] *
K04 : Vivitar / 28MM 1:2.8 / AUTO WIDE ANGLE / NO. 28xxxxxx / Ø49MM [Komine]
K05 : Vivitar / RL EDITION / 28mm 1:2.8 / CLOSE FOCUS / MC / NO. 28xxxxxx / Ø49mm [Komine]
K10 : Vivitar / 28MM 1:2 / AUTO WIDE-ANGLE / No. 22xxxxxx / Ø55MM [Kiron]
K11 : Vivitar / 28MM 1:2 / WIDE-ANGLE / NO. 22xxxxxx / Ø55MM [Kiron]
K12 : Vivitar / 28MM 1:2.5 / AUTO WIDE-ANGLE / NO. 22xxxxxx / Ø67MM [Kiron]
K20 : Vivitar Series 1 / 28MM 1:1.9 / VMC / AUTO WIDE ANGLE / No. 37xxxxxx / Ø58MM [Tokina]
K21 : Vivitar / 28MM 1:2.8 / WIDE ANGLE / MC / NO. 42xxxxxx / Ø49MM [Bauer]
K22 : Vivitar / 28MM 1:2.8 / AUTO / Ø49MM / VMC [?]
KA-mount:
A01 : Vivitar / 28MM 1:2.0 / MC / CLOSE FOCUS WIDE ANGLE / NO. 28xxxxxx / Ø49MM [Komine] *
A02 : VIVITAR / SMS / 28mm 1:2.8 / MC / CLOSE FOCUS WIDE ANGLE / NO. 28xxxxxx / Ø49MM [Komine]
A20 : Vivitar / 28mm 1:2.8 / MC / WIDE ANGLE JAPAN / Ø49mm / IMAGE by [?]
A21 : Vivitar / 28MM 1:2.8 / MC / WIDE ANGLE / Ø49MM [Cosina]
A22 : Vivitar / 28mm 1:2.8 / MC / WIDE ANGLE LENS / NO. 61xxxxxx / Ø52MM [?]
TX mount:
T01 : Vivitar / 28mm 1:2.5 / Auto Wide-Angle / No. 37xxxxx / Ø58mm [Tokina]
T02 : Vivitar / 28mm 1:2.8 / Auto Wide-Angle / No. 37xxxxxx / Ø52mm [Tokina] *
T03 : Vivitar / WIDE-ANGLE / 28mm 1:2.8 / No. 37xxxxx / Auto [Tokina, 58mm]
TX mount have stayed the same. I still have to figure out M42 mount. These ID numbers are out of date. For the definitive list please see The Great Vivitar 28mm Bestiary. Thank you!