Eoin Posted December 18, 2006 Share #1 Posted December 18, 2006 Advertisement (gone after registration) Hi all, Can you please have a look at this image and explain to me what's going on with the colours around the tree trunk and the edge of the pillar. Is it morie or due to some reflection from the IR/Cut filter?. Taken with a v1.0.6 M8, ISO 320, Non Coded 35 Summilux @ f/5.6, B+W 486 UV-IR/Cut F-Pro filter, Processed DNG in C1 3.7.6 with standard M8 profile, WB taken from flag, No exposure adjustment and no sharpening. Output sRGB jpeg The twig covering around the tree trunk was birch, natural colour not this multicolour. Thanks 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/11579-have-a-look-at-this-m8-image/?do=findComment&comment=120788'>More sharing options...
Advertisement Posted December 18, 2006 Posted December 18, 2006 Hi Eoin, Take a look here Have a look at this M8 image. I'm sure you'll find what you were looking for!
marknorton Posted December 18, 2006 Share #2 Posted December 18, 2006 Looks like Moire to me... Link to post Share on other sites More sharing options...
mjh Posted December 18, 2006 Share #3 Posted December 18, 2006 Yes, that’s definitely moiré. Link to post Share on other sites More sharing options...
Peter41951 Posted December 18, 2006 Share #4 Posted December 18, 2006 Looks like O'Connell Street......tart with the cart, floozie in the jacuzzi...... Is the underwater clock called time in the slime? Many happy memories of Dublin. Sorry to see moire in your picture. Link to post Share on other sites More sharing options...
Eoin Posted December 18, 2006 Author Share #5 Posted December 18, 2006 Looks like O'Connell Street......tart with the cart, floozie in the jacuzzi...... Is the underwater clock called time in the slime? Many happy memories of Dublin. Sorry to see moire in your picture. :) The tart with the cart has been moved to the bottom of Grafton street and the floozie in the jacuzzi was moved to Pearse Street and the time in the slime was removed as no one could see it clearly anymore. Yes, we Dubliners, have a knack for giving our monuments lyrical but less than complimentary nicknames. The one you've missed is the Spire of Dublin which has been called, The Stiletto in the Ghetto, The Scud in the Mud, The Nail in the Pale, The Metropole, The Stiffy by the Liffey, the Rod to God, the Pin in the Bin, the Erection at the Intersection. It's pure Dublin witt at it's best, Thanks for the feedback on the moire, I'm not used to seeing this obviously with the AA filter on the Canon's but nice to know it's not something else. Thanks Eoin 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/11579-have-a-look-at-this-m8-image/?do=findComment&comment=120877'>More sharing options...
Peter41951 Posted December 18, 2006 Share #6 Posted December 18, 2006 I haven't seen the spire yet. Many thanks for all the nicknames. Link to post Share on other sites More sharing options...
Eoin Posted December 18, 2006 Author Share #7 Posted December 18, 2006 Advertisement (gone after registration) Perhaps we can nickname the Leica M8 Camera as the Like'ta measurebate camera:) Link to post Share on other sites More sharing options...
gogopix Posted December 18, 2006 Share #8 Posted December 18, 2006 It seems the twig covering, being a regular linear pattern, is appearing to the sensor as a 'fabric' at this distance, and so you get typical moire' otherwise, quite nice image. Link to post Share on other sites More sharing options...
sergiolov Posted December 18, 2006 Share #9 Posted December 18, 2006 The m8 is subject to aliasing and moirè artfacts, which in some cases, and particularly my case are very strong, as I mostly shoot roofs with a fine geometrical detail texture (aerials). It also suffers of magenta specular highlights. the other side of perfect definition. This is a 100% crop. Sergio 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/11579-have-a-look-at-this-m8-image/?do=findComment&comment=120913'>More sharing options...
sdai Posted December 18, 2006 Share #10 Posted December 18, 2006 That's pretty nasty, Sergio ... have you converted the shot with C1 and tried the demoirizer? Link to post Share on other sites More sharing options...
sergiolov Posted December 18, 2006 Share #11 Posted December 18, 2006 Yes, Simon, but the best you can get is to get rid of the color, leaving the geometric aliasing. I come from a long experience with the Kodak 14n, which was, if possible, even worst. But the detail and file quality you get with the m8 is better, extraordinary I'll dare to say. Sergio Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted December 18, 2006 Share #12 Posted December 18, 2006 That's pretty nasty, Sergio ... have you converted the shot with C1 and tried the demoirizer? What I do when I get this with the M8 which i have hit once so far but the DMR does this also is in PS use a lasso tool and select the affected area than use the Demoirizer plug in and run that and it does do a excellent job of removing it. It is the small price we pay for not having a AA filter but IMHO the reward is there is nothing between the lens and the sensor and that is were the micro detail is without going into a sharpening tool. For me i never want to see a AA filter again Link to post Share on other sites More sharing options...
gdeliz Posted December 18, 2006 Share #13 Posted December 18, 2006 Yes, Simon,but the best you can get is to get rid of the color, leaving the geometric aliasing. I come from a long experience with the Kodak 14n, which was, if possible, even worst. But the detail and file quality you get with the m8 is better, extraordinary I'll dare to say. Sergio Yes, those ugly maze-like patterns remain after the color has been removed. A camera without an AA filter is not the best choice for architectural photography. If it's any solace to Leica owners however, the Canon 5D can produce some very nasty aliasing also.... http://img2.dpreview.com/gallery/canoneos5d_samples/originals/img_6805-acr_1.jpg At least the shot proves that the lowly Canon 70-200/4 outresolves the 5D sensor by a healthy margin. George Deliz Link to post Share on other sites More sharing options...
Asher Kelman Posted December 18, 2006 Share #14 Posted December 18, 2006 The m8 is subject to aliasing and moirè artfacts, which in some cases, and particularly my case are very strong, as I mostly shoot roofs with a fine geometrical detail texture (aerials). It also suffers of magenta specular highlights. the other side of perfect definition. This is a 100% crop.Sergio Hi Sergiolov, It is entirely possible that the moire could be pretty well removed if the lines are exactly horizontal. If you have such a file it might be worth looking at. I'd pass on the file to our image software analysis specialist. I happen to be looking at that now. tttp://www.openphotographyforums.com Link to post Share on other sites More sharing options...
Asher Kelman Posted December 18, 2006 Share #15 Posted December 18, 2006 The m8 is subject to aliasing and moirè artfacts, which in some cases, and particularly my case are very strong, as I mostly shoot roofs with a fine geometrical detail texture (aerials). It also suffers of magenta specular highlights. the other side of perfect definition. This is a 100% crop.Sergio Hi Sergiolov, It is entirely possible that the moire could be pretty well removed if the lines are exactly horizontal. If you have such a file it might be worth looking at. I'd pass on the file to our image software analysis specialist. I happen to be looking at that now. Asher The Open Photography Forums Initiative Link to post Share on other sites More sharing options...
sergiolov Posted December 18, 2006 Share #16 Posted December 18, 2006 Hi Asher, I will search. (I have a great moirè archive,lol) Meanwhile, this target shot has lines in various directions. Thanks. Sergio 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/11579-have-a-look-at-this-m8-image/?do=findComment&comment=121532'>More sharing options...
carstenw Posted December 19, 2006 Share #17 Posted December 19, 2006 Sergio, what raw developer do you use? I found with my 5D that the raw developer had a big effect on the amount of such maze-effects. Link to post Share on other sites More sharing options...
sergiolov Posted December 19, 2006 Share #18 Posted December 19, 2006 Carsten, I mostly use CS2, and, when possible, try to mask noise in LAB mode with dust&scratches. With C1, applying strong dose of noise reduction, then opening in PS and running demoirize plug in is effective, but the cost is a strong reduction of sharpness also, and in my job sharpness is the most important thing. BUt what really count is the time lost in PP. Regards, Sergio Link to post Share on other sites More sharing options...
Asher Kelman Posted December 19, 2006 Share #19 Posted December 19, 2006 Hi Asher,I will search. (I have a great moirè archive,lol) Meanwhile, this target shot has lines in various directions. Thanks. Sergio What a horror show! now where are the mathematicians to deconvolve this? Asher Link to post Share on other sites More sharing options...
carstenw Posted December 19, 2006 Share #20 Posted December 19, 2006 Sergio, I found personally that CS2 (if you mean the Camera Raw plugin) is worst for generating moire. I don't know what you do for photography, but unless your job is to take pictures of subjects which often show moire, maybe it would be acceptable to jump into some other raw developer only when moire rears its head. I haven't tried CS3 yet, btw. Link to post Share on other sites More sharing options...
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