K00 : Vivitar Series 1 / 28MM 1:1.9 / VMC / AUTO WIDE ANGLE / No. 37xxxxxx / Ø58MM [Tokina]
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 / AUTO WIDE-ANGLE / No. 22xxxxxx / Ø55MM [Kiron]
K04b: Vivitar / 28MM 1:2 / WIDE-ANGLE / NO. 22xxxxxx / Ø55MM [Kiron]
K05 : Vivitar / 28MM 1:2.5 / AUTO WIDE-ANGLE / NO. 22xxxxxx / Ø67MM [Kiron]
K06 : Vivitar / 28MM 1:2.8 / AUTO / Ø49MM / VMC [?]
K07 : Vivitar / 28MM 1:2.8 / WIDE ANGLE / MC / NO. 42xxxxxx / Ø49MM [Bauer]
K08 : Vivitar / 28mm 1:2.8 / MC / WIDE ANGLE JAPAN / Ø49mm / IMAGE by [?]
K09 : Vivitar / 28MM 1:2.8 / MC / WIDE ANGLE / Ø49MM [Cosina]
K10 : Vivitar / 28mm 1:2.8 / MC / WIDE ANGLE LENS / NO. 61xxxxxx / Ø52MM [?]
K11 : VIVITAR / SMS / 28mm 1:2.8 / MC / CLOSE FOCUS WIDE ANGLE / NO. 28xxxxxx / Ø49MM [Komine]

Lesson for today: Don't walk into a camera shop that sells used equipment
with cash in your pocket.

Having just sold my K02 to Gus, I had let it go - I knew he would put it
through it's paces, post images, and make me regret it. So be it. I have
progressed through the stages of LBA to the point where I would no longer
scour Ebay for a lens I wished I hadn't sold. (Well, except for that Helios.
Another story.)

Anyway, imagine my surprise when I laid eyes about a K02 in the case - the
second one I've ever seen. With tax, about the same $ as the one I sold.

Of course, I bought it. Cash in pocket, you see, and LBA - and LBA knows
no logic, only impulse.

Except, turns out it's K11 - exactly the same as K02, except with "SMS"
lettered in between the "Vivitar" and "28mm".

What does SMS stand for, anyone know?

Anyway, optically the same, I'm assuming - some shots from today, most cropped
because I couldn't get right up next to some of these plants in the Conservatory:






In the Conservatory, I shoot this same plant with every lens I bring
there - I don't know if any others got sharper than this:

[stevebrot]

Stevebrot asked

It is a long thread but you can see rparmars development of the Vivitar 28mm "master list" here:https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/34654-vivitar-...placement.html The final list is at post number 160!!!

It is a great to go through the thread and read all the posts all credit to Robin and the input from the many Vivitar users.

Oh...I seem to have missed that thread.

After having been involved with discussions involving Vivitar tele primes, the next obvious step is to compile a

Comprehensive Vivitar Master List

Steve

(I am only half kidding...something like that would be a service to both this forum and to the world!!!)