ClemFandango Posted September 13 Share #1 Posted September 13 Advertisement (gone after registration) Looking for some help on this M9 I just picked up. the backstory is I just bought this from a camera shop as ‘for parts, not working’. They said that the sensor was corroded and the camera would not read an SD card. after checking the camera out, it’s working fine, I suspect they were testing it with SD cards beyond what this camera can read. It does have some strange things going on with the sensor, but it does t look like corrosion to me. There is a clear 50/50 split going on, where one half is darker than the other (I think I can live with this as it should be easy enough to correct in post. The other thing is a strange ‘object sticking up at the bottom in front of the actual sensor. Anyone have any guesses to what this is, I can’t work out if it’s had a glass replacement that hasn’t gone well, or what it is. any advise? 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/424245-does-anyone-know-what-this-is-at-the-bottom-of-my-sensor/?do=findComment&comment=5862847'>More sharing options...
Advertisement Posted September 13 Posted September 13 Hi ClemFandango, Take a look here does anyone know what this is at the bottom of my sensor?. I'm sure you'll find what you were looking for!
pgk Posted September 13 Share #2 Posted September 13 No, but it shouldn't be there! Link to post Share on other sites More sharing options...
jaapv Posted September 13 Share #3 Posted September 13 The well-know centrefold issue. It means that the amplification out of the ADCs is imbalanced. (the sensor is read out in two halves and the readout/processing pipelines are separate until the demosaicing etc.steps). It is not unknown on these CCD sensors. The only thing you can do is to make a Photoshop action to balance the exposure of both halves and apply it when needed. It is impossible to say whether this is a stable situation or a progressive one. As for the piece of plastic(?) sicking out in front of the sensor, personally I would risk trying to remove it by tweezers -possibly wiggle sideways to the middle. The baffle appears to be bent anyway. Take care not to put force on the row of sensor contacts. The spots look more like dust than corrosion to me. Link to post Share on other sites More sharing options...
Doc Henry Posted September 13 Share #4 Posted September 13 Hello Clem, two things : - What is the sensor ID of your M9 ? the new one ID Sensor 15 - To see if the sensor is flawless , take a photo of a blue sky at F/16. Best Henry Link to post Share on other sites More sharing options...
NigelG Posted September 13 Share #5 Posted September 13 Given that the object sticking up emerges below the frame of the sensor FWIW I’d be tempted to cut it (very carefully!) just below the sensor area rather than manipulate it which might cause other damage. I’m assuming given the damage to the bottom frame it’s some kind of mounting piece/gasket/adhesive frame? Can you tell what material it is? The spots definitely look like dust not corrosion, and as Jaap says the “centrefold” issue is a processing preset click away… Link to post Share on other sites More sharing options...
ClemFandango Posted September 13 Author Share #6 Posted September 13 Thanks for the responses, really appreciate the knowledge you have. The bit sticking up is blue plastic by the look of it, I worry about damaging the sensor by sticking a knife in there, I may get a pair of rubber tipped tweezers and see if I can manipulate it to bend down out of the way Link to post Share on other sites More sharing options...
ClemFandango Posted September 14 Author Share #7 Posted September 14 Advertisement (gone after registration) Thanks for the responses, really appreciate the knowledge you have. The bit sticking up is blue plastic by the look of it, I worry about damaging the sensor by sticking a knife in there, I may get a pair of rubber tipped tweezers and see if I can manipulate it to bend down out of the way 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/424245-does-anyone-know-what-this-is-at-the-bottom-of-my-sensor/?do=findComment&comment=5863498'>More sharing options...
ClemFandango Posted September 14 Author Share #8 Posted September 14 I have had a closer look at this tonight an it looks like that plastic strip which is about 5 / 6 mm may well be touching the sensor, which makes me want to not try to grab it with tweezers, I suspect I may do more damage than good by trying to do something with it Link to post Share on other sites More sharing options...
GFW2-SCUSA Posted September 14 Share #9 Posted September 14 Have you tried using a blower (Not canned air) to move the particle? You might be able to get to stand upright and snag it with tweezers. Link to post Share on other sites More sharing options...
adan Posted September 15 Share #10 Posted September 15 My guess (going by the color) is that a "mental midget" 🤪 previous owner was trying to push loose some recalcitrant edge-of-sensor dust with a blue/cyan plastic toothpick or similar, and broke off the tip in the process. https://us.amazon.com/Plastic-Cocktail-Toothpicks-Soodhalter-Swords/dp/B01CCERPKY https://www.walmart.com/ip/JUNTEX-200Pcs-Food-Grade-Plastic-Toothpick-Travel-Portable-Double-Head-Dental-Oral-Sticks-Interdental-Floss-Cleaners-Tartar-Removal-Picks-Brush-Stora/1005833535 My personal solution if I wanted to remove this shard, from a camera I owned, would be to slide a thin-but-fairly-firm piece of paper (i.e. typing or document paper, NOT tissue paper) between the shard and the sensor glass. And then use tweezers to grab and pull loose the shard - the piece of paper serving as a backstop to prevent any metal-to-glass contact. Just make sure the camera battery are fresh,so that the shutter won't close unexpectedly. 1 Link to post Share on other sites More sharing options...
ClemFandango Posted September 21 Author Share #11 Posted September 21 After taking another look and sending images to Camerworks UK, the general consensus is that it is a part of a sensor cleaning brush that got caught in the sensor housing during a previous cleaning and broke off. Having spent some time out and about with the camera now, it turns out that little blue paint on the arse moves around, to my surprise after the first couple of images during a walk yesterday, it disappeared from images. It is still there but will freely move around the sensor. knowing this I had a go at removing it with tweezers, but I can get it free from the surface of the sensor. I don’t know if it’s some sort of strong static that is keeping it on but so far I can’t get the thing out. here are a couple of images from the walk yesterday, nothing special, just testing out the camera 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! 1 1 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/424245-does-anyone-know-what-this-is-at-the-bottom-of-my-sensor/?do=findComment&comment=5866133'>More sharing options...
ClemFandango Posted September 21 Author Share #12 Posted September 21 Here is the M9 too 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! 2 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/424245-does-anyone-know-what-this-is-at-the-bottom-of-my-sensor/?do=findComment&comment=5866135'>More sharing options...
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