JeffreyTotaro Posted October 16, 2007 Share #1 Posted October 16, 2007 Advertisement (gone after registration) Hi All: I just shot this image tonight and noticed right away an odd artifact around bright lights. Not only is there an odd artifact, but the light has swollen and overlapped an object in front of it. This was with the WATE at 16mm, no filter, raw file, C1 Pro. Any thoughts? Link to post Share on other sites More sharing options...
Advertisement Posted October 16, 2007 Posted October 16, 2007 Hi JeffreyTotaro, Take a look here Melting Lights with WATE. I'm sure you'll find what you were looking for!
marknorton Posted October 16, 2007 Share #2 Posted October 16, 2007 The light is of course completely blown, but not an especially good advertisement for the M8 and/or C1 image processing. Have you tried it on an alternative developer and were you shooting RAW + JPEG? It would be interesting to know what the camera made of it. Would be worth sending to Solms/Phase One as an example of "Could Do Better". Link to post Share on other sites More sharing options...
bradreiman Posted October 16, 2007 Share #3 Posted October 16, 2007 color fringing and "mosaicing" due to overexposure. Link to post Share on other sites More sharing options...
robertwright Posted October 16, 2007 Share #4 Posted October 16, 2007 I have seen this too on my M8, when it tends to happen is not so much on over exposure as on overexposure of an area adjacent to a much darker value. I believe this is essentially a defect in either the hardware or internal software processing of the M8. I have never seen it in any other camera. What is also funny about it is that you can have a series of overexposed lights and most will be rendered correctly, but a few will not. That is why I believe it is a defect. The camera can do it correctly. When I emailed samples of this to solms they said send the camera in. I have been waiting for a good time to send it off for fixing. Link to post Share on other sites More sharing options...
AGeoJO Posted October 16, 2007 Share #5 Posted October 16, 2007 Is this case of the faulty hardware that was recalled previously by Solms? Link to post Share on other sites More sharing options...
robertwright Posted October 16, 2007 Share #6 Posted October 16, 2007 Not that I am aware of. But maybe it is. I just sent an email to solms in May with examples similar to this asking if this was normal and they said send it in. I sent it to Andrea Frankl and she forwarded it internally and I got back a response: "Dear Mr. Wright, I sent Your e-mail to our Quality Management and they told me that our workshop can fix the problem. Kind regards M8 Support Ursula Brand-Gerheim Tel.: +49 6442 208 165 Fax: +49 6442 208 339 M8.Support@leica-camera.com" Of course I could not be without it... hoping the queue is shorter now and might send it soon. Link to post Share on other sites More sharing options...
sandymc Posted October 16, 2007 Share #7 Posted October 16, 2007 Advertisement (gone after registration) Can you run that though another raw processor and post the results? Sandy Link to post Share on other sites More sharing options...
robertwright Posted October 16, 2007 Share #8 Posted October 16, 2007 Can you run that though another raw processor and post the results? Sandy its independent of raw processors. the fault is at the camera level. I can post similar examples that defy changes in raw processing. the data itself is fudged. Link to post Share on other sites More sharing options...
robertwright Posted October 16, 2007 Share #9 Posted October 16, 2007 Here are three. Notice that in some areas the highlight transition is executed without mosaicing. I have tried various converters. I think lenses used were 35 asph cron in portrait and 21 elmarit in the interiors, the cron was prob. f2 and the interiors prob. f8 or 11, Ir filters on all. Link to post Share on other sites More sharing options...
sandymc Posted October 16, 2007 Share #10 Posted October 16, 2007 Thanks - the color fringing on the highlights doesn't surprise me; about what you'd expect with a weak AA filter. What did surprise me was the apparent bleed of the highlight into the mirror frame on the original shot. Very strange. Sandy Link to post Share on other sites More sharing options...
robertwright Posted October 16, 2007 Share #11 Posted October 16, 2007 Thanks - the color fringing on the highlights doesn't surprise me; about what you'd expect with a weak AA filter. What did surprise me was the apparent bleed of the highlight into the mirror frame on the original shot. Very strange. Sandy the weak aa filter idea is somewhat supported by the fact that I do tend to see it more on wides at small aperture in window frames for example, they are sharp transitions from light to dark, and I see it less in out of focus transitions. However in these examples the pixels are not just mosaicing at an edge, they are bleeding into other pixels adjacent, which seems to be not about the AA filter and more about the sensor electronics. Still, Leica says it is fixable so I hope it is, because it does make it very hard for me to shoot this camera, I have to be protecting the highlights often when sometimes I don't care and would like it blown out. Backlit portraits for example against a window. The result can be very unusable. But it does not happen all the time, so perhaps it is fixable. Link to post Share on other sites More sharing options...
Albert4321 Posted October 16, 2007 Share #12 Posted October 16, 2007 Jeffery, the WATE photo looks really good in term of distortion control. Did you make any distortion/perspective correction? I personally can live with the overexposed problems. It happys to any camera in various degree. DxO v5 RAW converter may help. I am still waiting for my pre-order WATE since August. Albert. Link to post Share on other sites More sharing options...
robertwright Posted October 16, 2007 Share #13 Posted October 16, 2007 Jeffery, the WATE photo looks really good in term of distortion control. Did you make any distortion/perspective correction? I personally can live with the overexposed problems. It happys to any camera in various degree. DxO v5 RAW converter may help. I am still waiting for my pre-order WATE since August. Albert. I am not aware of any other camera that displays this kind of artifact. Are there examples. None of my Canons have ever displayed this. I am not familiar with Nikon or Pentax. Link to post Share on other sites More sharing options...
JeffreyTotaro Posted October 16, 2007 Author Share #14 Posted October 16, 2007 Jeffery, the WATE photo looks really good in term of distortion control. Did you make any distortion/perspective correction? I personally can live with the overexposed problems. It happys to any camera in various degree. DxO v5 RAW converter may help. I am still waiting for my pre-order WATE since August. Albert. This is the image right out of the camera. It does have very limited distortion compared to DSLR lenses of similar focal length. Link to post Share on other sites More sharing options...
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