matlep Posted November 13, 2015 Author Share #21 Posted November 13, 2015 Advertisement (gone after registration) Got a reply from Leica, and they said it was normal behaviour. Good to know.... Link to post Share on other sites More sharing options...
Advertisement Posted November 13, 2015 Posted November 13, 2015 Hi matlep, Take a look here Strange artefacts in image. I'm sure you'll find what you were looking for!
pico Posted November 13, 2015 Share #22 Posted November 13, 2015 Thanks for the input. I wonder if it looked the same back in the film days? No. I've never seen that happen on film except in insanely long exposures which tended to create a solarization effect of very bright objects. If I could have the DNG I would like to try to fix the first image posted. It is a totally unacceptable outcome. Link to post Share on other sites More sharing options...
matlep Posted November 13, 2015 Author Share #23 Posted November 13, 2015 No. I've never seen that happen on film except in insanely long exposures which tended to create a solarization effect of very bright objects. If I could have the DNG I would like to try to fix the first image posted. It is a totally unacceptable outcome. Pico, you can download the DNG here: https://dl.dropboxusercontent.com/u/1675649/20151110-L1000245.DNG Link to post Share on other sites More sharing options...
marcg Posted November 13, 2015 Share #24 Posted November 13, 2015 Got a reply from Leica, and they said it was normal behaviour. Good to know.... Do they mean that it's normal behavious for a Q? This worries me somewhat Link to post Share on other sites More sharing options...
pico Posted November 13, 2015 Share #25 Posted November 13, 2015 Pico, you can download the DNG here: https://dl.dropboxusercontent.com/u/1675649/20151110-L1000245.DNG Thank you. I tried, but I guess I'm not smart enough to fix the artifacts. I'm intrigued. Perhaps someone else can enlighten us. How/why does that happen? Link to post Share on other sites More sharing options...
matlep Posted November 13, 2015 Author Share #26 Posted November 13, 2015 Do they mean that it's normal behavious for a Q? This worries me somewhat Yes, they said it was not an image error. But rather some reflection from the background. I think that is somewhat true. What still bothers me is that is looks so unnatural and a bit organic. Strange indeed. Link to post Share on other sites More sharing options...
pico Posted November 13, 2015 Share #27 Posted November 13, 2015 Advertisement (gone after registration) Yes, they said it was not an image error. But rather some reflection from the background. A black background? Link to post Share on other sites More sharing options...
CharlesL Posted November 14, 2015 Share #28 Posted November 14, 2015 Here is a shot Philip Bloom took for his ecstatic review of the Pentaz 645Z, a medium format camera with a Sony sensor. You will see the same kind of black spots. You can tell that the water acts as distorted mirror and/or prism on light reflected off the boat or the men in it.Water scene Link to post Share on other sites More sharing options...
matlep Posted November 14, 2015 Author Share #29 Posted November 14, 2015 A black background? Well it is a sunset, so i guess anything reflecting on the shadow side will be black. Link to post Share on other sites More sharing options...
matlep Posted November 14, 2015 Author Share #30 Posted November 14, 2015 Here is a shot Philip Bloom took for his ecstatic review of the Pentaz 645Z, a medium format camera with a Sony sensor. You will see the same kind of black spots. You can tell that the water acts as distorted mirror and/or prism on light reflected off the boat or the men in it. Water scene Ok, good example. My only concern is that in every image example i have seen of this the edges of the black reflection is pretty smooth. In my image the edges of the black are really uneven and jagged. But as stated before, it might depend on the quality of the water and the amount of small waves, but still. It does not look natural. Link to post Share on other sites More sharing options...
pico Posted November 14, 2015 Share #31 Posted November 14, 2015 But as stated before, it might depend on the quality of the water and the amount of small waves, but still. It does not look natural. Does water really look like this? Link to post Share on other sites More sharing options...
marchyman Posted November 14, 2015 Share #32 Posted November 14, 2015 Or like this (image not from a leica, but shows a strange water effect): 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/252874-strange-artefacts-in-image/?do=findComment&comment=2928523'>More sharing options...
lucerne Posted November 14, 2015 Share #33 Posted November 14, 2015 Does water really look like this? Is there a correct answer to this question? As far as I can see, the camera and lens have rendered what has been reflected from the scene in the available light. You either like it or not. Link to post Share on other sites More sharing options...
CharlesL Posted November 14, 2015 Share #34 Posted November 14, 2015 Cameras do not see the same as our eyes. Some differences are, with the technology of today, unavoidable. For example, sunstars. They are artificial, yet some photographers love the effect, and they judge lenses by the number and shape of the rays. Link to post Share on other sites More sharing options...
pico Posted November 15, 2015 Share #35 Posted November 15, 2015 Is there a correct answer to this question? As far as I can see, the camera and lens have rendered what has been reflected from the scene in the available light. You either like it or not. I am wondering why the water looks as it does. Is it something about the lens, shutter speed, being a digital capture? I am not arguing aesthetics. Link to post Share on other sites More sharing options...
mjh Posted November 15, 2015 Share #36 Posted November 15, 2015 The shapes created by waves and ripples on the water are constantly and rapidly changing; that is what we are used to – neither the frozen shapes created by fast shutter speeds nor the blurred effect you get from long exposure times. Black spots are pretty normal. The ragged contour of the black area are somewhat unusual but I suppose it just reflects what these spots are a reflection of. Hard to say what it is as it isn’t part of the image. Link to post Share on other sites More sharing options...
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