Echo63 Posted March 23, 2016 Share #1 Posted March 23, 2016 Advertisement (gone after registration) I feel like an idiot. I have had my M240 2 yrs now, and have only just found the dust detection feature. for those of you who don't know, you stop the lens down (f16 or 22) and point the camera at a homogenous out of focus surface (sky, white paper etc, i used a white document in photoshop) and take a picture, it analyses it, then shows you where the dust is, as through you were looking through the lens mount. whoever thought of this is a genius ! here is a pair of iPhone pics of the LCD of my M240, showing before and after i blew the dust off the sensor with the low pressure compressed air line at work (setup in the studio, specifically for blowing dust off sensors) still some dust stuck, but much much cleaner than it was beforehand. 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! 3 Quote 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/258499-just-found-the-dust-detection-option/?do=findComment&comment=3012990'>More sharing options...
Advertisement Posted March 23, 2016 Posted March 23, 2016 Hi Echo63, Take a look here Just found the "Dust detection" option. I'm sure you'll find what you were looking for!
RonM Posted March 23, 2016 Share #2 Posted March 23, 2016 Yes this is a "hidden" feature that it took me a while to discover also!! 1 Quote Link to post Share on other sites More sharing options...
Abram Posted March 25, 2016 Share #3 Posted March 25, 2016 I was never able to get that feature to work right, but I never thought to use my monitor! I happened to be working in Illustrator at the moment so I just opened a new artboard and wouldn't you know it. Worked first try! My sensor is only a little dirty as I use my rocket blower every other week or so, but it's also not terribly dusty here on the coast of California. Quote Link to post Share on other sites More sharing options...
jmahto Posted March 25, 2016 Share #4 Posted March 25, 2016 I think the value of this is in knowing exactly where the dust is. If I am manually detecting dust by looking at the picture taken at small aperture then I have to remember that image forms upside down on the sensor. Therefore dust showing up on top right is actually at bottom left. This feature gets rid off the complexity and simply tells you where the dust it. Very helpful. Although I won't call it a hidden feature.... maybe it is hidden because most M users don't get into menu at all. I only go into menu once in a while to adjust time zone when I am travelling. Quote Link to post Share on other sites More sharing options...
jaapv Posted March 25, 2016 Share #5 Posted March 25, 2016 I have never used it; I will only clean my sensor when the dust gets problematic on my monitor. 1 Quote Link to post Share on other sites More sharing options...
Jeff S Posted March 25, 2016 Share #6 Posted March 25, 2016 Only hidden to guys who don't read manuals... or maps. I know the feature is there, but have never needed it.....easy to see when there's a problem (on screen and in print), and a loupe shows where the problem is. The detection system will likely have you cleaning far more than needed. My M240 has never needed more than an occasional dust blowing since new....and my M8.2 has only needed a few wet cleanings over 7 years.....consistent with other user reports in a very recent thread on the topic. Jeff 1 Quote Link to post Share on other sites More sharing options...
waloszek Posted March 25, 2016 Share #7 Posted March 25, 2016 Advertisement (gone after registration) I do it like jaapv. But before I start cleaning the sensor, I use dust detection to learn about the state of affairs -- and after the cleaning as well. Which may mean that I have to do it again (and again)... Best regards, Herd Quote Link to post Share on other sites More sharing options...
Schrödinger's cat Posted March 25, 2016 Share #8 Posted March 25, 2016 I rather like this feature, although I must say that for some reason I don't find as much dust on my 240 as I do on our Nikons. With no other explanation I suspect that it has to do with using primarily zooms on the Nikons vs primes on the 240. And when I do it generally blows off with a bulb where the Nikons can be relied upon to need a wet cleaning. Quote Link to post Share on other sites More sharing options...
tobey bilek Posted March 25, 2016 Share #9 Posted March 25, 2016 Same function is in Photoshop and /or LR. I clean once a year whether it needs it or not. As required if I detect defects on images. Leaving things there too long can make them very hard to clean. Dust is easy, little curly strands. My nemesis are little tan colored dots which I think are pollen. Effective prevention includes blowing out the camera infant of the shutter before dust migrates behind. After each shoot is ok. Quote Link to post Share on other sites More sharing options...
vladik Posted March 26, 2016 Share #10 Posted March 26, 2016 I have been using this feature for almost as long as I own my M. I rather clean the sensor (dry or wet) then removing spots in Lr. Great feature Leica (do not use any other camera brands). Quote Link to post Share on other sites More sharing options...
Echo63 Posted March 31, 2016 Author Share #11 Posted March 31, 2016 I dont dig too far into camera menus, this is one of those things i should have found, but didnt. I typically set the camera up once, and leave it alone (i struggle to remember to change the AF settings on my 1DX for different sports) Also the first time i have cleaned my M in 2 yrs and 30,000 pics (it needed doing, i was seeing the occasional spot in my pictures, when stopped down past f8) I really like the way it shows you where the dust is and where you need to concentrate your cleaning efforts. Quote Link to post Share on other sites More sharing options...
budjames Posted April 9, 2018 Share #12 Posted April 9, 2018 I just used the dust detection function on my 4 month old M10 after noticing a few spots on sky areas of images shot at f16. The dust persisted after bulb blowing so I used my VisibleDust brush to dry clean the sensors. After two passes, all is good. I hope that the next M will include ultrasonic sensor cleaning like my Fuji X cameras. Regards, Bud James www.budjames.photography Quote Link to post Share on other sites More sharing options...
Exodies Posted April 9, 2018 Share #13 Posted April 9, 2018 Where does the Fuji X camera put the dust it has removed from the sensor? Quote Link to post Share on other sites More sharing options...
jdlaing Posted April 9, 2018 Share #14 Posted April 9, 2018 Where does the Fuji X camera put the dust it has removed from the sensor? On a sticky strip same as all the other dust removal shaking sensors. The most effective system is Olympus. The rest are a distant second. 1 Quote Link to post Share on other sites More sharing options...
Chubkins Posted April 10, 2018 Share #15 Posted April 10, 2018 I just found it today, but that's because I got my first m240 in the mail today and low and behold, a few specks are present. Ordered some large frame sensor swabs to give it a cleaning. This is a superb little camera in hand and a very large step up from a past M8 I let go awhile back. Quote Link to post Share on other sites More sharing options...
jaapv Posted April 10, 2018 Share #16 Posted April 10, 2018 I just used the dust detection function on my 4 month old M10 after noticing a few spots on sky areas of images shot at f16. The dust persisted after bulb blowing so I used my VisibleDust brush to dry clean the sensors. After two passes, all is good. I hope that the next M will include ultrasonic sensor cleaning like my Fuji X cameras. Regards, Bud James www.budjames.photography Unlikely. Leica does not like movable parts in their sensors for precision reasons. Quote Link to post Share on other sites More sharing options...
Exodies Posted April 10, 2018 Share #17 Posted April 10, 2018 I just found it today, but that's because I got my first m240 in the mail today and low and behold, a few specks are present. Ordered some large frame sensor swabs to give it a cleaning. This is a superb little camera in hand and a very large step up from a past M8 I let go awhile back. Before you start swabbing the decks, try a few puffs with a rubber puffer. In my M240’s 4 year life no sensor dust had resisted a puff of air. Other owners have had different experiences so you may need to touch the sensor but blow first and recheck. Quote Link to post Share on other sites More sharing options...
Peter Kilmister Posted April 10, 2018 Share #18 Posted April 10, 2018 I agree with @Exodies, nothing can defeat a good force of air. The camera body needs to be held so that the blower is pointing upwards and the lens orifice is pointing downwards. 3 Quote Link to post Share on other sites More sharing options...
marchyman Posted April 11, 2018 Share #19 Posted April 11, 2018 So far a rocket blower used as Peter describes has removed any dust found in my M 262. 1 Quote Link to post Share on other sites More sharing options...
budjames Posted April 11, 2018 Share #20 Posted April 11, 2018 Where does the Fuji X camera put the dust it has removed from the sensor? Not sure, but I have not had to clean my Fuji sensors in three years other than an occasional bulb blowing. Over 20k images shot in four continents. Regards, Bud James www.budjames.photography Quote Link to post Share on other sites More sharing options...
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