Likaleica Posted August 15, 2018 Share #1 Posted August 15, 2018 Advertisement (gone after registration) I bought a used MM that had been to Wetzlar for sensor replacement and came with the certificate to prove it. Just noticed this in the lower left of the sensor (upper right on image). It kind of looks like a thumbprint but it wouldn't come off with sensor cleaner. Is this corrosion again? Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/287504-replaced-sensor-bad-already/?do=findComment&comment=3572604'>More sharing options...
Advertisement Posted August 15, 2018 Posted August 15, 2018 Hi Likaleica, Take a look here Replaced sensor bad already?. I'm sure you'll find what you were looking for!
pico Posted August 15, 2018 Share #2 Posted August 15, 2018 It looks more like dirt and dust to me, and considering how recent it has been serviced, it is unacceptable. 2 Link to post Share on other sites More sharing options...
Likaleica Posted August 15, 2018 Author Share #3 Posted August 15, 2018 there are some tiny dust spots but the other is not dust or dirt. With magnification it looks like its part of the sensor Link to post Share on other sites More sharing options...
Likaleica Posted August 15, 2018 Author Share #4 Posted August 15, 2018 here's another one with full contrast to show all the crap on the sensor Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/287504-replaced-sensor-bad-already/?do=findComment&comment=3572611'>More sharing options...
IkarusJohn Posted August 15, 2018 Share #5 Posted August 15, 2018 Send an image to CS in Wetzlar, and they’ll confirm. Best to set the aperture to f/22, focus at infinity and take an image of a blank uniform wall - that will give you a clear image of the sensor. Early sensor replacements were just putting a new sensor of the same design and make as the faulty version. It was only later that an improved sensor was developed. 1 Link to post Share on other sites More sharing options...
david strachan Posted August 15, 2018 Share #6 Posted August 15, 2018 Might like to send your first image to Wezlar, so you have a base to argue. Then try a wet clean. Could fix it; otherwise back to the foundry, and several months wait. Bad luck. ... 1 Link to post Share on other sites More sharing options...
Likaleica Posted August 15, 2018 Author Share #7 Posted August 15, 2018 Advertisement (gone after registration) Thanks. I did the wet clean and took the test exposure. Looks pretty bad. Oh well, I guess I'll just have to use the M10 1 Link to post Share on other sites More sharing options...
dkmoore Posted August 15, 2018 Share #8 Posted August 15, 2018 I am curious to know what Wetzlar's response will be. 1 Link to post Share on other sites More sharing options...
AlbertTRAL Posted August 15, 2018 Share #9 Posted August 15, 2018 (edited) here's another one with full contrast to show all the crap on the sensor Which CCD ID do you have? 52 or 53? If 52, the sensor replacement most probably was still the mk(I), obviously prone to corrosion again... Edited August 15, 2018 by AlbertTRAL 1 Link to post Share on other sites More sharing options...
Likaleica Posted August 15, 2018 Author Share #10 Posted August 15, 2018 How do I tell? Is the number in the camera? Link to post Share on other sites More sharing options...
AlbertTRAL Posted August 15, 2018 Share #11 Posted August 15, 2018 (edited) There is a hidden service menu "body debug data" which can be brought up as follows: Power on Delete -> up (2x) -> down (4x) -> left (3x) -> right (3x) -> Info This shows the service menu. Scroll down and up using the arrow buttons. Press Set to select an item Gently press the shutter release to leave item. Press Info again for the menu Scroll down and under Hardware IDS, you can get the following in the MM pressing the set button as said: CCD ID: 53 CCD Board: 52 Control BRD: 52 M16CID: 0 CCD ID 53 > MK II ... CCD ID 52 > MK I ... supposedly as per information reported in the forum... but obviously always better to ask Leica's CS... ;-) https://www.l-camera-forum.com/topic/272556-determining-new-sensor-m9/page-1 Edited August 15, 2018 by AlbertTRAL 1 Link to post Share on other sites More sharing options...
Likaleica Posted August 15, 2018 Author Share #12 Posted August 15, 2018 Wow, that's great information. I went through the process and it is sensor ID 53 Since I'm in the US I contacted Leica in New Jersey. They said they could replace the sensor within 4 weeks. If true, that will be a new land speed record. I do have another monochrom camera I can use in the meantime - my M3 1 Link to post Share on other sites More sharing options...
IkarusJohn Posted August 15, 2018 Share #13 Posted August 15, 2018 A mk2 sensor with corrosion! Oh dear. 2 Link to post Share on other sites More sharing options...
dkmoore Posted August 15, 2018 Share #14 Posted August 15, 2018 A mk2 sensor with corrosion! Oh dear. Hopefully they didn't make a super dumb mistake of thinking they resolved the issue to only have 10,000 more sensors to replace. Link to post Share on other sites More sharing options...
Guest tofu_man Posted August 16, 2018 Share #15 Posted August 16, 2018 it doesn't look like corrosion to me....it looks like greasy crap that's been smeared across the sensor Good luck anyway; hopefully it just needs a good clean 1 Link to post Share on other sites More sharing options...
Likaleica Posted August 16, 2018 Author Share #16 Posted August 16, 2018 A mk2 sensor with corrosion! Oh dear. Fingers crossed it's something else, but definitely not "greasy crap." Unless someone else has been sticking his/her fingers in there. And it didn't come off with solvent. I don't live in a salty environment, in fact it's very dry here. Thanks for everyone's comments. I'll post the progress. 2 Link to post Share on other sites More sharing options...
Likaleica Posted August 23, 2018 Author Share #17 Posted August 23, 2018 (edited) I am happy to report that my sensor was merely soiled, much more than mere dust. It was "greasy crap." How I do not know. I suspect gremlins or daemons. Nevertheless, I am also very pleased about the turnaround from Leica USA, less than a week ship to ship time. So, no evidence of corrosion on ID 53 sensors! Edited August 23, 2018 by Likaleica 6 Link to post Share on other sites More sharing options...
a.noctilux Posted August 23, 2018 Share #18 Posted August 23, 2018 Not corrosion . Happy for you and for us owners of MM1 with replaced ID 53 sensors. 2 1 Link to post Share on other sites More sharing options...
Jeff S Posted August 23, 2018 Share #19 Posted August 23, 2018 I suggest mods change thread title to Greasy Crap on Sensor. Jeff 1 1 Link to post Share on other sites More sharing options...
250swb Posted August 24, 2018 Share #20 Posted August 24, 2018 (edited) Use a sensor cleaning fluid specifically made for removing greasy crap and oil. This will remove greasy crap, but it can also leave drying marks, so remove the drying marks with the ordinary cleaning fluid. So it's often a two stage process in the early life of a new camera, but the greasy crap stops being thrown off by the shutter after a while. So I wonder if Leica re-greased the shutter when they changed the sensor and re-introduced the spitting problem in your pre-owned camera? Edited August 24, 2018 by 250swb 3 Link to post Share on other sites More sharing options...
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