Last thursday I was looking for a UV filter, but I had no time to go to my usual seller, so I went into a little shop, the first one I found. While asking for the filter, on a shelf I spotted an old Pentax lens box (the one white in the upper part, red in the middle and black below). I cannot trust my poor sight, but it looked like that in the little rectangular white label down on the left, it was written "35 mm F3.5". My old 35!, after 21 years! (Flashback: when I bought my first camera, a MX, I chose a 35 mm as standard lens, and the K f/3,5 was far cheaper than the then (1978) new M series' f/2 or f 2.8. I was very happy with this lens, and then added a used K 200 f/4. A odd pair of lens, but I loved both, and, I had no money to buy any other one (I was 18). Two years later they robbed me of all the gear. When I managed to buy another MX, one more year later, the tiny budget allowed me to get a M 50 f/1.7. Since then, I have been regretting the lost of both 35 and 200. Yes, I got a A 35 f/2.8 and a M 200 f/4, but I always missed the old pair). I asked for the price, and it was 260 euros (about $ 230). "Not a bargain for used stuff" I said. "Used? It's brand new!". It *WAS BRAND NEW*! Possibly it had been sleeping 25 years on that shelf!! The box needed a sprinkling, but the lens, and its case & strap, were mint. There were both the sheet with serial number and feet/meters conversion tablewere and the booklet "SMC PENTAX LENSES K ", too. Back at home, the lens mounted on the MX, I enjoyed the reading of the booklet. Whew, it is the 200 f/4 which is displayed in the cover, mounted on a silver K2.... Now the questions: At pages 32-33 ("Specifications") are listed the K series lenses, with their features. Some K lenses are missing in this list: 18 / 3,5 24 / 2.8 28 / 2 28 / 3.5 Shift 30 / 2.8 55 / 2 100 / 4 Bellows 200 / 2.5 1000 / 11 Reflex 2000 / 13,5 Reflex Zoom 28 - 50 / 3.5 - 4.5 Zoom 85 - 210 / 3.5 Zoom 400 - 600 / 8 - 12 Reflex The question is: When were theese lenses released? According to B.Dimitrov's site the most of the K lenses was introduced in 1975, but he includes in this first issue the 18 mm, the 24mm/2,8, the 30 mm and the 100 mm Bellows. Were they introduced in the same year, but in a second time (after the bookled was issued)? OTOH, Bozhidar states that the 28 / 3.5 and the 150 / 4 were introduced, respectively, in 1976 and 1977. But they actually are present in the booklet's list! Can anyone of you give me the right answer? Another related question: when did the indication on the lens' front ring change? In the oldest K lenses, the focal lenght does not include "mm" (millimeters), and the lettering is different (thiner types, more space between two letters). Thank you Fabio (very happy with his 35/3.5, and still hoping to come across a K 200/4). - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .