lars_bergquist Posted March 18, 2010 Author Share #101 Posted March 18, 2010 Advertisement (gone after registration) Here are tests made tonight with 28mm Summicron ASPH (top image), 25mm Biogon (middle frame) and 18mm Distagon (last frame). The target was a daylight temperature lightbox, a relic from my Kodachrome days. All lenses were tested stopped down two stops. Frames are in-camera jpegs. I must say that I find it remarkable that all three deliver excellent image quality ... and so will you. The test was done after loading FW 1.116 and a subsequent reset. The old man reaching for the soap 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/115618-a-sane-attitude-to-rededge/?do=findComment&comment=1264507'>More sharing options...
Advertisement Posted March 18, 2010 Posted March 18, 2010 Hi lars_bergquist, Take a look here A Sane Attitude to Rededge. I'm sure you'll find what you were looking for!
wattsy Posted March 18, 2010 Share #102 Posted March 18, 2010 I must say that I find it remarkable that all three deliver excellent image quality I'm not sure if you are taking the piss or not. Link to post Share on other sites More sharing options...
Ario Arioldi Posted March 18, 2010 Share #103 Posted March 18, 2010 Lars, were the lenses coded or manually identified? Cheers, ario Link to post Share on other sites More sharing options...
jaapv Posted March 18, 2010 Share #104 Posted March 18, 2010 I'm not sure if you are taking the piss or not. :D Link to post Share on other sites More sharing options...
JPH1962 Posted March 18, 2010 Share #105 Posted March 18, 2010 Some real world example with the CV 15 @ f8, coded as summicron 28, no cornerfix but a simple lightroom preset.... 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/115618-a-sane-attitude-to-rededge/?do=findComment&comment=1264644'>More sharing options...
UliWer Posted March 18, 2010 Share #106 Posted March 18, 2010 Well, I seem to miss my sane attitude completely. When I look Adan's example photo in # 100, I ask myself: where is his problem? I don't see it. When I look at Lars' examples in #101, I say: This is horrible, I stay away from the M9 and shall be happy with the little red shift I see from the M8! What strikes me most is the 28 Summicron. There seems to be a reduced red on the left side, but now we have a red patch at the upper right corner. Others have seen this as well after the update - as if the red was just moved from the left to the right. If one compares the sharp dark corners of the Summicron - never knew this was so obvious - to the almost non-existant vignetting of the Biogon, vignetting does not seem to play a major role in the matter. The Biogon picture seems to be encircled by red - but there is also the green of the "Italian flag". Can't comment on the Distagon example. What I have seen yet of this lens it should be in the same league as the Super-Elmar - if not even better. When I imagine I had these results with the Super-Elmar on the M9..... Where am I wrong? I hope someone can tell me. Link to post Share on other sites More sharing options...
adan Posted March 18, 2010 Share #107 Posted March 18, 2010 Advertisement (gone after registration) Hi - UliWer - the post #100 shot was made last September with a demo M9, as the post says in the text - there is indeed not much to complain about in that shot. The problem is: that is NOT how my production M9 performs - see post #9. OTOH, Lars' samples remind me of the man who wept because he had no shoes - until he met a man who had no feet. At least my 21 isn't as bad as those three lenses. If someone has Stephan Daniel's email and wants to PM me with it, I will quit posting here and go direct to the source. Maybe my camera just has a misplaced sensor or some other specific defect. Link to post Share on other sites More sharing options...
UliWer Posted March 18, 2010 Share #108 Posted March 18, 2010 Hi - UliWer - the post #100 shot was made last September with a demo M9, as the post says in the text - there is indeed not much to complain about in that shot. The problem is: that is NOT how my production M9 performs - see post #9. ... Sorry, I didn't read your text properly. I saw the photo and thought: "where is the problem?" and the question stuck in my mind reading what you said. Link to post Share on other sites More sharing options...
ho_co Posted March 18, 2010 Share #109 Posted March 18, 2010 Andy-- Agreed, there's a noticeable difference between the two 21mm shots you posted. But to me, the image in post 100 has a slight color shift toward red or magenta on the left side, most noticeable in the sky just above the building roof. I probably wouldn't have noticed it if it weren't for the red edge discussion, but I think it's there. I'll say one thing: Threads like this one certainly make me more interested in getting an M9, just so I can see whether I got a good one or a bad one. Link to post Share on other sites More sharing options...
vanhulsenbeek Posted March 18, 2010 Share #110 Posted March 18, 2010 Guys, I just unsubscribed from this thread. I cannot make head or tail of it anymore. Am I alone? Link to post Share on other sites More sharing options...
charlesphoto99 Posted March 18, 2010 Share #111 Posted March 18, 2010 My sentiments exactly. Most ridiculous thread I've read in a while. Cosina lenses, Zeiss lenses and even M8 FW. Not really a good way to understand whether improvement has been made or not. And keepnn mind three years ago Leica said this discussion shouldn't even be happening. Count your blessings to have access to a full frame digital rangefinder, use Cornerfix for those few keepers, and expect Leica to keep improving the FW with future updates. Ultimately the best would probably for Adobe to write lens corrections into the LR camera calibration (of course then there would be pissing and moaning about that too) or Cornerfix as a LR plug in. Maybe we could all donate forSandy to write that one. Best solution that Chris came up with for the time being is to stop testing white walls and stick to the old brick wall standard instead! Link to post Share on other sites More sharing options...
ho_co Posted March 19, 2010 Share #112 Posted March 19, 2010 Guys, I just unsubscribed from this thread. I cannot make head or tail of it anymore.... Gee, Sander, I didn't know that was an option! (Making head or tail of it, I mean. ) Link to post Share on other sites More sharing options...
sfokevin Posted March 19, 2010 Share #113 Posted March 19, 2010 I'm here in Bangkok... And even CornerFix can't help... Link to post Share on other sites More sharing options...
ho_co Posted March 19, 2010 Share #114 Posted March 19, 2010 Hmm. I think you could turn to the military for help with that one. Link to post Share on other sites More sharing options...
lars_bergquist Posted March 19, 2010 Author Share #115 Posted March 19, 2010 Lars,were the lenses coded or manually identified? Cheers, ario All coded: The Biogon as a 24mm Elmarit ASPH, and the Distagon as a WATE. The newly washed old man Link to post Share on other sites More sharing options...
Nitnaros Posted March 19, 2010 Share #116 Posted March 19, 2010 Hey sfokevin, Since we have seen here red brick walls as test image for red edges, I think your photograph perfectly qualifies as test... Txs for sharing, gave me a good laugh! Peter Link to post Share on other sites More sharing options...
chris_tribble Posted March 19, 2010 Share #117 Posted March 19, 2010 Hey sfokevin,Since we have seen here red brick walls as test image for red edges, I think your photograph perfectly qualifies as test... Txs for sharing, gave me a good laugh! Peter Agreed on both counts... Link to post Share on other sites More sharing options...
D&A Posted March 19, 2010 Share #118 Posted March 19, 2010 Lars & Chris, I just completed some comprehesive tests with the Zeiss 18mm and M9 (latest firmware) and read edge, coding as I usually did as a Wate (18mm) and now a few other lens choices. This is of course dependent that your Zeiss 18mm brings up the 28/90 frame lines. What I found and it was quite consistant, is that coding the Zeiss 18mm as a Leica 21mm f2.8 (pre Asph), as someone else recommended, reduces whatever red edge there might be in a given image, to even lower levels as when compared to coding it as a WATE. I was surprised at the differences. I tried other wide angle lens coding, but none came anywhere as close as the 21mm f2.8 pre asph. As a bonus, coding is made as easy as it was for coding it as a WATE...since the code for the Leica 21mm f2.8 pre asph is 00001 . Just some info that you might want to apply to your Zeiss 18mm. How coding of the Zeiss 18mm as a Leica 21mm f2.8 pre asph compared to coding a Zeiss 18mm as a Leica SE 18mm is hard to say, since one would need a Zeiss 18mm that brings up 50mm frame lines like the Leica 18mm does. Lastly I haven't heard how the Leica SE 18mm does in regards to red edge when used with an M9 with updated firmware...and how it might compare to the Zeiss 18mm coded as a Leica 21mm f2.8 pre asph...which I believe is now the best option for the Zeiss 18 and red edge...and visually in many cases almost or completely eliminates it now. It didn't quite do this when coded as a WATE. Not perfect but getting close. Dave (D&A) Link to post Share on other sites More sharing options...
AndrejK Posted March 19, 2010 Share #119 Posted March 19, 2010 Lars & Chris,... How coding of the Zeiss 18mm as a Leica 21mm f2.8 pre asph compared to coding a Zeiss 18mm as a Leica SE 18mm is hard to say, since one would need a Zeiss 18mm that brings up 50mm frame lines like the Leica 18mm does. ... Dave (D&A) May be you could use the manual frame line selector to test it with this coding. It would be interesting to see your results. Regards Andrej Link to post Share on other sites More sharing options...
D&A Posted March 19, 2010 Share #120 Posted March 19, 2010 Hi Andrej, Thats actually a good idea. Not sure when I'll find the change to repeat my tests, but when I do, I'll include that. I'd also first like to find out if the Leica SE 18mm lens which has a noticable red edge issue with the old firmware, is better with red edge when used with the new M9 firmware. Thanks! Dave (D&A) Link to post Share on other sites More sharing options...
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