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photogem | |
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08-10-2022, 07:15 AM | #106 |
Never said it was "news" nowhere, and "later" is if i remember correctly a date after 2016 according to user photogem. The thing is 5hat in a 2017 production model it would be expected to have the 1st generation of modification solenoid but it doesn't, it uses the original non modified solenoid, so that is the what you so called "news" item | |
08-10-2022, 07:25 AM | #107 |
Hi there, yes it is easy to see by the length of the magnet part, as you can see in the picture from user photogen that i posted where 4 green solenoids are veside each othe. You clearly see the difference between them and there is also the circular mark which is more pronounced on the 2 modified ones, i will post a picture of my green solenoid from my K-S2 and again user photogem picture | |
08-10-2022, 08:17 AM | #108 |
Hi there, yes it is easy to see by the length of the magnet part, as you can see in the picture from user photogen that i posted where 4 green solenoids are veside each othe. You clearly see the difference between them and there is also the circular mark which is more pronounced on the 2 modified ones, i will post a picture of my green solenoid from my K-S2 and again user photogem picture | |
08-10-2022, 09:06 AM | #109 |
This is my original from a K-50.Attachment 580781 | |
08-10-2022, 09:14 AM | #110 |
This is my original from a K-50.Attachment 580781 | |
08-10-2022, 09:22 AM | #111 |
---------- Post added 08-10-22 at 04:24 PM ---------- Yours definitely has a longer magnet than mine yet mine is three years older. | |
08-10-2022, 09:27 AM | #112 |
Your magnet definitely looks smaller than mine, but maybe sizes vary even between a same batch, chinese dont have a precise manufacturing proces, you could measure is with a digital caliper, i can do that with mine. ---------- Post added 08-10-22 at 09:29 AM ---------- Yes exactly, that would be the "news" factor, as nobodyvevwr reported that. ---------- Post added 08-10-22 at 09:46 AM ---------- Still doesnt my original length non modified solenoid used in 2017 ---------- Post added 08-10-22 at 09:48 AM ---------- Still doesn't explan my original length non modified solenoid used in 2017 | |
08-10-2022, 10:05 AM | #113 |
Your magnet definitely looks smaller than mine, but maybe sizes vary even between a same batch, chinese dont have a precise manufacturing proces, you could measure is with a digital caliper, i can do that with mine. ---------- Post added 08-10-22 at 09:29 AM ---------- Yes exactly, that would be the "news" factor, as nobodyvevwr reported that. ---------- Post added 08-10-22 at 09:46 AM ---------- User photogem says 1st modification was used from 2012, so then yours would be a 1st generation modification as its from 2014. Still doesnt my original length non modified solenoid used in 2017 ---------- Post added 08-10-22 at 09:48 AM ---------- Still doesn't explan my original length non modified solenoid used in 2017 | |
08-10-2022, 11:34 AM | #114 |
Maybe you misunderstood because here he said: 1. The non-modified version as we know it was used until Dec. 2012, less clear defined dimple in the plunger 2. The 1.st Modification as used since Dec. 2012 with a smaller magnet, changed alloy and clear defined dimple in the plunger 3. The 2.nd Modification: Same alloy as in the 1.st modification but even shorter magnet. | |
08-10-2022, 11:42 AM | #115 |
Maybe you misunderstood because here he said: 1. The non-modified version as we know it was used until Dec. 2012, less clear defined dimple in the plunger 2. The 1.st Modification as used since Dec. 2012 with a smaller magnet, changed alloy and clear defined dimple in the plunger 3. The 2.nd Modification: Same alloy as in the 1.st modification but even shorter magnet. "For quite a long time it was not yet clear that the culprit was just the solenoid! The complete "diaphragm-control-block" was exchanged or possibly just the whole camera because exchange of the block was very work + time intensive. But then due to all the research mainly here in this forum (!) Ricoh/Pentax realized that it was just the solenoid itself. It was about Dec. 2015 that Ricoh started to modify the solenoid. The made in Japan solenoid was no longer available, machines were already since a long time in China, the plants in Japan closed, so no chance to go back to this Japan-made solenoid! " The K-30 was introduced in 2012 and nobody knew about any issues with the solenoid for a couple of years. The Pentax Forum survey didn't take place until 2016. | |
08-10-2022, 11:55 AM - 1 Like | #116 |
Useful to know: How many solenoids has one changed, how many Pentax DLSR for that reason disassembled? And how many checked for manufacturing date? Nevertheless: It is possible that at the assembly-place workes took an early production solenoid. If one takes into account how very badly workers there are paid, one shouln'd be surprised if not everything goes "by plan" What really counts 1. "Holding force" and this can either be measured or "sensed" if you know how-to. If you don't have sensitivity in your fingers, you are more or less similar unsensititive to good food because your sensitivity is measure by McDonalds or similar deep frozen hamburgers, hot-dots and/or similar junk-food, so no much value... and I won't bring in good wine or .... a good eye 2. The quality of the alloy, almost impossible for us to "measure" All this is quite unimportant: We know that the white DSLR Japan Solenoid never failed... I have measured its qualities and that is all we need to know! Last edited by photogem; 08-10-2022 at 12:01 PM. | |
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08-10-2022, 12:37 PM | #117 |
Useful to know: How many solenoids has one changed, how many Pentax DLSR for that reason disassembled? And how many checked for manufacturing date? Nevertheless: It is possible that at the assembly-place workes took an early production solenoid. If one takes into account how very badly workers there are paid, one shouln'd be surprised if not everything goes "by plan" What really counts 1. "Holding force" and this can either be measured or "sensed" if you know how-to. If you don't have sensitivity in your fingers, you are more or less similar unsensititive to good food because your sensitivity is measure by McDonalds or similar deep frozen hamburgers, hot-dots and/or similar junk-food, so no much value... and I won't bring in good wine or .... a good eye 2. The quality of the alloy, almost impossible for us to "measure" All this is quite unimportant: We know that the white DSLR Japan Solenoid never failed... I have measured its qualities and that is all we need to know! So thanks photogem again for your research and making the replacement an easy job by your manual for replacement. It was very easy all in all and i would say to anyone just do the switch from green to white | |
08-10-2022, 01:43 PM | #118 |
Never said it was "news" nowhere, and "later" is if i remember correctly a date after 2016 according to user photogem. The thing is 5hat in a 2017 production model it would be expected to have the 1st generation of modification solenoid but it doesn't, it uses the original non modified solenoid, so that is the what you so called "news" item Only when we got to the third mod was there any serious improvement in performance. I also would expect a camera body manufactured in 2017 to have whatever solenoids Pentax had in inventory, so I am not at all surprised that they used one that didn’t ‘work out’. That is all I was basically saying. I purchased a KP on “Black Friday” 2018, because I distrusted the solenoids in K-70’s sold new then. | |
08-10-2022, 01:48 PM | #119 |
As far as I am conserned, there was no noticeable difference between the original solenoid and the first two mods Only when we got to the third mod was there any serious improvement in performance. I also would expect a camera body manufactured in 2017 to have whatever solenoids Pentax had in inventory, so I am not at all surprised that they used one that didn’t ‘work out’. That is all I was basically saying. I purchased a KP on “Black Friday” 2018, because I distrusted the solenoids in K-70’s sold new then. | |
08-10-2022, 03:00 PM | #120 |
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