pgk Posted June 11, 2021 Share #21  Posted June 11, 2021 Advertisement (gone after registration) Here are some possible explanations: https://en.wikipedia.org/wiki/Purple_fringing however be cautious because most 'severe' problems have no single, simple explanation. My guess is that you are seeing several factors reinforcing each other and they do so effectively enough to cause the severe fringing that you are seeing. I'm not so certain that the lens is at fault but it may well be worth getting it looked at to make sure that everything is aligned properly just in case something is out of tolerance and is exacrbating the problem. Shooting extreme highlitys with hard, well-defined edges against adjacent dark areas, with a CCD sensor and using a lens capable of very high micro contrast are certainly going to show up the problem, but  even so you are getting towards the extreme end of purple fringing. A good (strong) UV filter might help in such situations? Link to post Share on other sites More sharing options...
Advertisement Posted June 11, 2021 Posted June 11, 2021 Hi pgk, Take a look here Extreme Purple fringing Summilux 35 FLE. I'm sure you'll find what you were looking for!
jaeger Posted June 11, 2021 Share #22  Posted June 11, 2021 6 hours ago, hossegor said: Leica Customer care tries to tell me that this is normal ... you are from Frankfurt, don't tell me the customer service rep who told you "it's normal" was from HQ in Wetzlar... Link to post Share on other sites More sharing options...
hossegor Posted June 11, 2021 Author Share #23  Posted June 11, 2021 (edited) Jaeger. yes those were the exact words written to me Edited June 11, 2021 by hossegor Link to post Share on other sites More sharing options...
pgk Posted June 11, 2021 Share #24 Â Posted June 11, 2021 I have the pre-FLE version of this lens which does not fringe to this extent. As far as I am aware the difference is that the rear 'floating group' moves to optimise performance. Just thinking about this, I wonder if the floating group is either out of alignment or not operatong as it should and this is the cause? Link to post Share on other sites More sharing options...
jaeger Posted June 11, 2021 Share #25  Posted June 11, 2021 (edited) 20 minutes ago, hossegor said: Jaeger. yes those were the exact words written to me I'm absolutely terrified... Wetzlar is my last resource to service my Leica gears. Wetzlar is better than those clowns in... my country, but they still screw up 1 lens that I had to send back for a second run. Recently, another one is getting loose again and I wondered why they don't tight the screw properly... 16 minutes ago, pgk said: I wonder if the floating group is either out of alignment or not operatong as it should It can't be DIY anyway. Edited June 11, 2021 by jaeger 1 Link to post Share on other sites More sharing options...
pgk Posted June 11, 2021 Share #26  Posted June 11, 2021 17 minutes ago, jaeger said: It can't be DIY anyway. I had a 75mm Summicron which had poor performance. A later one was fine. The FLE mechanism can be problematic apparently and needs very careful adjustment to precise tolerances.  Best get it checked and sorted. Link to post Share on other sites More sharing options...
jaeger Posted June 11, 2021 Share #27  Posted June 11, 2021 Advertisement (gone after registration) 46 minutes ago, pgk said: I had a 75mm Summicron which had poor performance. A later one was fine. The FLE mechanism can be problematic apparently and needs very careful adjustment to precise tolerances.  Best get it checked and sorted. Couldn't agree more ppk, but now the mothership denies the symptom. I guess hossegor can try to speak to another customer service, or my best bet is in person visit so it's harder to deny. Link to post Share on other sites More sharing options...
frame-it Posted June 11, 2021 Share #28 Â Posted June 11, 2021 but first try the lens on a different camera body Link to post Share on other sites More sharing options...
lct Posted June 11, 2021 Share #29  Posted June 11, 2021 7 hours ago, frame-it said: bright flaring highlights on Chrome...and f1.4, no wonder. +1. Usual problem with chromes at fast apertures. Never noticed it to that extent on my FLE but i didn't push the boundaries that far i guess. If the OP intends to use his lens this way, i mean at f/1.4 on chromes on a regular basis i would return the lens as it will never comply with his expectations. An M 35/2 asph would not do better than the FLE i fear but i have no experience with the latest M 35/2 apo. I have no experience with the ZM 35/1.4 either but my ZM 35/2.8 is almost CA free. Link to post Share on other sites More sharing options...
Danner Posted June 11, 2021 Share #30  Posted June 11, 2021 11 hours ago, hossegor said: Yes they sure have.  and Leica CS told me the fringing may be because the ISO is too high. to me this is BS,  because this sample image was shot at ISO 160. this is what i got as a reply from them : "I have described your case to the Technician and the QA special inspection. We all know that this is normal due to the lens design. Yours seems to be a little more pronounced. We suspect that it has to do with the higher ISO setting. Try a lower ISO and give some feedback." Translation:  We have no ability to fix this, therefore it is normal. Link to post Share on other sites More sharing options...
hossegor Posted June 12, 2021 Author Share #31 Â Posted June 12, 2021 (edited) thanks for all the input guys, like i said, the lens is going to the mothership on the 25th, and they will test everything. will be getting a loaner lens while it is there. Â Edited June 12, 2021 by hossegor 3 Link to post Share on other sites More sharing options...
Capuccino-Muffin Posted June 12, 2021 Share #32  Posted June 12, 2021 Wide open shooting in broadlight à la Artiste? Better get used to CA. Link to post Share on other sites More sharing options...
Gobert Posted June 12, 2021 Share #33  Posted June 12, 2021 I used to be a heavy user of this lens and I like it wide open, but I’ve never seen this purple fringe that badly. Link to post Share on other sites More sharing options...
davidmknoble Posted June 12, 2021 Share #34  Posted June 12, 2021 (edited) Two ideas. One try shooting and under exposing 1/2 stop at a time for 2-3 stops to see if CA still happens. I.e., is this because the highlights are over exposed by too much? two, I might suggest the coatings are flawed on that lens. Can you try a second lens at the store on your M9? Even a demo and compare CA between them?  Edited June 12, 2021 by davidmknoble Link to post Share on other sites More sharing options...
caloosajo Posted June 15, 2021 Share #35  Posted June 15, 2021 It’s like Cinestill 800T halation…except not  Hope you find a solution (or replacement)… Link to post Share on other sites More sharing options...
hossegor Posted June 29, 2021 Author Share #36 Â Posted June 29, 2021 just got some feedback from Wetzlar, saying everything is within the normal range and they can not find a fault. they suggest me to either stop down or fix it in lightroom :). Maybe i just got a Lemon FLE. I might just sell it and get a Distagon 35 and a Q.. Link to post Share on other sites More sharing options...
lct Posted June 29, 2021 Share #37  Posted June 29, 2021 Excerpt from LensTip : « When it comes to the longitudinal chromatic aberration all 1.4/35 class lenses, tested by us, have experienced many problems. If you, like us, expected the Zeiss to set new standards here you would be left disappointed. » Link to post Share on other sites More sharing options...
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