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SMC Pentax-DA* 50-135mm F2.8 ED [IF] SDM Serial Numbers - Specifications | ||||
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Like all current DA lenses, the SMC Pentax DA* 50-135mm is designed only for Pentax DSLR cameras. It was announced in late February, 2007. It auto-focuses with an SDM ultrasonic motor on the K10D (firmware 1.30) and newer cameras. On older cameras the lens will auto-focus with the 'screw drive' mechanism. Total Serials: 236 | ![50-135mm F2.8 ED [IF] SDM](https://www.pentaxforums.com/lensreviews/data/43/221200712935.jpg) | |||
| Serial / Avoid | Owner | Description | Location / Price | |
| 9329711 | Hidden | Bougth 4 years ago | April, 2015 | |
| 9305933 | Hidden | New. Performs as expected. I should never have sold my old one. | January, 2019 | |
| 9305911 | Hidden | Bought brand new. It requires focus adjustment of +3. With this it is very sharp and even | November, 2018 | |
| 9305824 | Hidden | New lens and initial check on auto-focus seems good. | May, 2019 | |
| 9305183 | Hidden | First thing I've noticed was loose focus ring which was more noticeable at far infinity. Second and even more unacceptable was spontaneous front/back focusing, AF fine tune didn't help. Third, focusing ring started to squeal in a week of testing. Image quality was just stunning though. I can't believe how could they put such a brilliant piece of glass in this garbage!? | December, 2017 | |
| 9305164 | Hidden | Purchased this refurbished lens from a Canadian camera retail store. Comes with 1 year warranty. Good condition. So far so good. | February, 2021 | |
| 9305160 | Hidden | Brand new. Will report on performance in due course. Returned due to focus problems - replaced with new. | September, 2016 | |
| 9305149 | Hidden | Replacement for defective lens. Will report on performance in due course. | October, 2016 | |
| 9305059 | Hidden | SDM often gets stuck at close focus and needs MF to refocus | March, 2019 | |
| 9304835 | Hidden | Purchased in like new condition. No flaws. Pouch and box included in sale. | December, 2016 | |
| 9304766 | Hidden | The autofocus wouldn't work correctly at first and neither would quick shift. It would focus off camera and with the body set to MF, leading me to believe a clutch was stuck. I removed the lens and aggressively turned the focus ring back and forth. It's worked fine since. | January, 2017 | |
| 9304600 | Hidden | I got this lens at an unbelievable price due to it sitting on the shelf of a dealership that doesn't now carry Pentax gear. The sticker price was $487 AUD, but there was a 50% off sale as well. The salesman thought it may have been an insurance replacement lens that was ordered but wasn't picked up. The serial number card with the lens is branded RICOH. | January, 2019 | |
| 9303808 | Hidden | Purchased new. | November, 2014 | |
| 9303528 | Hidden | Complete with caps, hood, box etc. Wow - Immaculate, soo sharp. Just fantastic. | March, 2020 | |
| 9303400 | Hidden | sharp and auto focus appears spot on so far. | February, 2017 | |
| 9303185 | Hidden | Location Location Location Location | March, 2015 | |
| 9303000 | Hidden | Demonstration model | April, 2017 | |
| 9302880 | Hidden | It's brand new... | August, 2014 | |
| 9302801 | Hidden | good | September, 2014 | |
| 9302653 | Hidden | Optically perfect lens, but right after passing the 2-year barrier SDM starts failing | August, 2015 | |
| 9302431 | Hidden | No damage, very neat | September, 2020 | |
| 9302253 | Hidden | great lens | June, 2015 | |
| 9302243 | Hidden | Brand new | December, 2014 | |
| 9302172 | Hidden | actually, i brought it at the price 5750 CNY, the currency unit was not listed. after 3 days' experience, it seems that this lens is not good at taking a sharp image. | February, 2014 | |
| 9302106 | Hidden | Looks fine out of the box. Will report any issues. | January, 2015 | |
| 9302040 | Hidden | Got stolen in Vienna (Wien Hauptbahnhof) on December 29, 2015. | August, 2014 | |
| 9302025 | Hidden | My first DA* 50135 lenses. It's Good. | March, 2015 | |
| 9301722 | Hidden | Excellent condition lens, except for failed SDM upon arrival. Roberts will accept return and refund 100%. Would keep for Screw Drive conversion, but they did not want to accept my refund offer. | February, 2018 | |
| 9301635 | Hidden | SOLD - New lens, and I am very satisfied how sharp it is. | March, 2014 | |
| 9301500 | Hidden | Acquired from store as replacementfor an previous DA*50-135 which was damaged by seawater. . Going to test it thoroughly in the following weeks. | April, 2015 | |
| 9301311 | Hidden | Sharp and good colors. Autofocus accurate at all distances and all focal lengths, no adjustment needed. Recommended. Even though it's been around a while, it is the best in the zoom range. | September, 2014 | |
| 9301280 | Hidden | Very satisfied with a shot , the best portrait lens zoom . | May, 2014 | |
| 9301159 | Hidden | This lens just arrived today and i have yet to properly test it, but my initial tests are very impressive for color rendition and sharpness. | May, 2013 | |
| 9301129 | Hidden | Great optically, but also had the SDM problem. I've used the lens rom hack to disable SDM mode on this lens. | December, 2013 | |
| 9301044 | Hidden | Great, love it. I wouldn't call it the quietest AF lens out there; it's on par with my Nikon 70-300 telephoto for noises and clunks. Louder than the kit 18-135. | July, 2013 | |
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