AGeoJO Posted May 3, 2007 Share #1 Posted May 3, 2007 Advertisement (gone after registration) I have not seen images that clearly show the dreaded cyan shift on a wide angle lens with an IR filter - could someone post some picture for me, please? In addition, I understood the new firmware is designed to correct the issue in combination of only Leica IR cut filter. Since the filter delivery is delayed, what is the deal with using another brand like B+W or Heliopan? Or are we better off by just not using any IR cut filter for wide angle shots since mostly it is more for landscape. Any input is appereciated. Thanks, Joshua Link to post Share on other sites More sharing options...
Advertisement Posted May 3, 2007 Posted May 3, 2007 Hi AGeoJO, Take a look here Samples of cyan shifts on WA lenses, please?. I'm sure you'll find what you were looking for!
Guest guy_mancuso Posted May 3, 2007 Share #2 Posted May 3, 2007 Joshua bottom line on this and Sean has it in his review also , which i need to read . basically from 21mm wider use only the Leica filters . B=W will work withthe longer focal lengths and eliminate the cyan cast very effectively so 24,28,35 and 50 you can use either. There maybe a slight difference in color with B+W but it will be global and a easy adjustment. i would confirm reading Seans review since he has been testing some of this out. i know on the WATE a leica filter is certainly needed, also the CV 15mm i believe from what i have seen the leica filter is cleaner but some folks are having success with the B+W. Check out the WATE filtered thread for cyan cast images also and there are more threads around that show the cast Link to post Share on other sites More sharing options...
stunsworth Posted May 3, 2007 Share #3 Posted May 3, 2007 Joshua, I don't have an image hand as I'm away from home, but the shift is noticable on shots taken with my 24mm Elmarit. Leica only guarantee that it will be corrected if using Leica filters on coded lenses. However from what has been posted here and elsewhere it would appear that in practice there are not huge diffrences between say a Leica filter and the B+W 486 equivalent. Personally I would use a filter all the time as I don't just use the 24mm for landscapes. I would expect IR to have an effect on lenses used without filters even if only shooting landscapes. Link to post Share on other sites More sharing options...
Jamie Roberts Posted May 3, 2007 Share #4 Posted May 3, 2007 Joshua-- I'll be happy to show you a couple of landscapes with cyan shift from a 15mm CV. It's there all right. If I get out today I'll get some posted for you (all I have right now are some very boring backyard shots andwhite panel tests--I just got my filters!). But even from those tests, I can tell that using the IR filter is all about spending less time colour correcting. It's just way easier, especially with the new C1 profile. Note I didn't say NO time in post, but less time that without a filter (sometimes not much less--IR doesn't always affect the shot). The cyan shift itself is easily fixed in post if you don't have a coded lens, but even that can be fixed with various self-coding strategies, and Leica's internal fix is excellent from what I've seen on my coded 28 and from Sean's report. Link to post Share on other sites More sharing options...
tashley Posted May 3, 2007 Share #5 Posted May 3, 2007 This shot is with a CV 15 on 1.09 firmware. In the second version I dealt with (not 100% successfully) the evident cyan shift by using a layer mask created for the purpose and applied in photoshop. As you can see the effect is quite strong when viewed against a 'fixed' version, but in many shots you might not notice it at all, particularly on lenses from 28-35mm. HTH Tim 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/23142-samples-of-cyan-shifts-on-wa-lenses-please/?do=findComment&comment=244724'>More sharing options...
sean_reid Posted May 3, 2007 Share #6 Posted May 3, 2007 Just two notes. There isn't an overall "cyan shift", the center stays neutral but the outer zones drift increasingly towards blue-green. There are many examples of this, in controlled testing, in my lens reviews and in an article on my site called "Beating the Blues". Some quick notes: 1. Cyan drift is noticeable with 35 mm and wider lenses although it can also be seen, in a mild form, with 40 and 50 mm lenses. 2. As Guy said, the Leica filters are the best choice for 21 mm and wider lenses. My tests show that the 486 filters also work well with 28 mm and longer lenses. Have not yet tested the Leica 24 with the new filters and firmware but I will, eventually, be testing virtually all current production RF lenses. Cheers, Sean Link to post Share on other sites More sharing options...
Photoskeptic Posted May 3, 2007 Share #7 Posted May 3, 2007 Advertisement (gone after registration) M8, CV 15. If this isn't demonstrative enough I have another... 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/23142-samples-of-cyan-shifts-on-wa-lenses-please/?do=findComment&comment=244838'>More sharing options...
AGeoJO Posted May 3, 2007 Author Share #8 Posted May 3, 2007 Guy, Steve, Jamie, Tim, Sean and John, Thank you very much for your input. Five of my lenses have been coded by Leica and they still have another one that is due back to me in several weeks. I splurged and bought four IR cut filters, three B+Ws and one Heliopan, which I just received this week. In my limited filter usage, I noticed only my 21mm as having a little cyan shift (so, I thought, at least) in the corners. Not as bad as what Tim showed though. I checked Sean's site before simply missed the "Beating the Blues". The title makes sense but I wasn't running on all four at that time and that's why I missed that . From Sean's site, I understood that Leica changed the formulation of their IR cut filter from when the issue started to surface. That may explain the delay in the filter delivery. So, our best bet for WA is to use a filter regardless and take care of it on PS if it is there then, huh? That is until Leica delivers the filter..... Thanks again, Joshua Link to post Share on other sites More sharing options...
wparsonsgisnet Posted May 3, 2007 Share #9 Posted May 3, 2007 ... Have not yet tested the Leica 24 with the new filters and firmware but I will, eventually, be testing virtually all current production RF lenses.... Gee, Sean. It's your fault I bot the 24mm lens! I just finished your "Beating the Blues" essay and am itching to see you do the 24. I'd also like to see a shootout between the CV15 and the WATE. Do we need to pressure Leica to supply their beta-guys with Leica filters? Maybe another petition? Link to post Share on other sites More sharing options...
thpeters Posted May 3, 2007 Share #10 Posted May 3, 2007 Gee, Sean. It's your fault I bot the 24mm lens! I just finished your "Beating the Blues" essay and am itching to see you do the 24. I'd also like to see a shootout between the CV15 and the WATE. Do we need to pressure Leica to supply their beta-guys with Leica filters? Maybe another petition? NO..... pressure sending it to the beta guys..........................we all wait for filters for a very long time now, included myself. Leica should sent it to their costumers, not the dealers first or whatever, with all respect to the dealers and beta people. Theo Link to post Share on other sites More sharing options...
sean_reid Posted May 3, 2007 Share #11 Posted May 3, 2007 Gee, Sean. It's your fault I bot the 24mm lens! I just finished your "Beating the Blues" essay and am itching to see you do the 24. I'd also like to see a shootout between the CV15 and the WATE. Do we need to pressure Leica to supply their beta-guys with Leica filters? Maybe another petition? Hi Bill, Starting tomorrow (pending UPS arrival) will be the ultra-wides review and the 35s. I do have some test filters from Leica (39, 46, 49) but will not see a 55 for a little while. In fact, my personal Leica filters (from the camera I bought) still aren't here yet. Once I get a 55 mm Leica filter I'll test the 21 and 24 to add to the list. The 49 will be for the WATE and I'll use the 39 on the CV 15. I can temporarily try a 46 mm on the 12 but since there's no code to match I don't expect proper correction in-camera. The Zeiss will have to be tested with no filter. I can filter all the 35s with 486 or Leica filters. Always a million things to get done and never enough time. CV 40 review just went up though. Cheers, Sean Link to post Share on other sites More sharing options...
tashley Posted May 3, 2007 Share #12 Posted May 3, 2007 Hi Bill, Starting tomorrow (pending UPS arrival) will be the ultra-wides review and the 35s. I do have some test filters from Leica (39, 46, 49) but will not see a 55 for a little while. In fact, my personal Leica filters (from the camera I bought) still aren't here yet. Once I get a 55 mm Leica filter I'll test the 21 and 24 to add to the list. The 49 will be for the WATE and I'll use the 39 on the CV 15. I can temporarily try a 46 mm on the 12 but since there's no code to match I don't expect proper correction in-camera. The Zeiss will have to be tested with no filter. I can filter all the 35s with 486 or Leica filters. Always a million things to get done and never enough time. CV 40 review just went up though. Cheers, Sean Hey Sean, I have a B+W 55 IR filter which I'd happily send you, though I guess you need the Leitz version? Tim Link to post Share on other sites More sharing options...
sean_reid Posted May 3, 2007 Share #13 Posted May 3, 2007 NO..... pressure sending it to the beta guys..........................we all wait for filters for a very long time now, included myself. Leica should sent it to their costumers, not the dealers first or whatever, with all respect to the dealers and beta people. Theo Its all the same, mostly, as many of the beta testers are also paying M8 customers. I don't have "my" filters yet either, just press loaners. Cheers, Sean Link to post Share on other sites More sharing options...
sean_reid Posted May 3, 2007 Share #14 Posted May 3, 2007 Guy, Steve, Jamie, Tim, Sean and John,Thank you very much for your input. Five of my lenses have been coded by Leica and they still have another one that is due back to me in several weeks. I splurged and bought four IR cut filters, three B+Ws and one Heliopan, which I just received this week. In my limited filter usage, I noticed only my 21mm as having a little cyan shift (so, I thought, at least) in the corners. Not as bad as what Tim showed though. I checked Sean's site before simply missed the "Beating the Blues". The title makes sense but I wasn't running on all four at that time and that's why I missed that . From Sean's site, I understood that Leica changed the formulation of their IR cut filter from when the issue started to surface. That may explain the delay in the filter delivery. So, our best bet for WA is to use a filter regardless and take care of it on PS if it is there then, huh? That is until Leica delivers the filter..... Thanks again, Joshua Hi Josh, For the WATE, see if you can grab the Leica 49 (with the Milich adapter, which I'm also testing). For the CV 15, try the Leica 39. For the Leica 21 and 24, we'll need to wait a bit. 486 may be OK with 24 but I don't know yet. CV 12 is probably best with no filter but I'll find out soon. Cheers, Sean Link to post Share on other sites More sharing options...
sean_reid Posted May 3, 2007 Share #15 Posted May 3, 2007 Hey Sean, I have a B+W 55 IR filter which I'd happily send you, though I guess you need the Leitz version? Tim Hi Tim, Thanks very much. I do have that one so I'm waiting for the "new formula" Leica filter. Cheers, Sean Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted May 3, 2007 Share #16 Posted May 3, 2007 Its all the same, mostly, as many of the beta testers are also paying M8 customers. I don't have "my" filters yet either, just press loaners. Cheers, Sean Yes us beta boys are waiting on filters also. i got 1 out of 4 and bought many versions of leica and B+W . i have a freaking filter store here. i have to say it would have helped with some testing if we were supplied. Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted May 3, 2007 Share #17 Posted May 3, 2007 Hi Josh, For the WATE, see if you can grab the Leica 49 (with the Milich adapter, which I'm also testing). For the CV 15, try the Leica 39. For the Leica 21 and 24, we'll need to wait a bit. 486 may be OK with 24 but I don't know yet. CV 12 is probably best with no filter but I'll find out soon. Cheers, Sean Agreed that is what i would say also. We need 49,55 and 60 please Link to post Share on other sites More sharing options...
Bill W Posted May 3, 2007 Share #18 Posted May 3, 2007 What is the color shift on the right had side of this photo under the eaves and in the shadows? I was using a 28 with no filters, I do not have any yet. 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/23142-samples-of-cyan-shifts-on-wa-lenses-please/?do=findComment&comment=245170'>More sharing options...
Photoskeptic Posted May 4, 2007 Share #19 Posted May 4, 2007 Bill, hard to believe a ghost town was made with black synthetic fabrics! Magenta raises it's ugly head again. I'm certain the filter will fix this and any similar future images. Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted May 4, 2007 Share #20 Posted May 4, 2007 Joshua here is the WATE lens with the new adapter that John made BUT it is with the B+W filters. I think both of these are with the 16mm setting. So reason as we have said the leica filters are really needed from 21mm down. I don't have the 24mm but i am suspecting it maybe the case also were we will need the leica filter . From my tests and Seans also from 28mm up B+W or Leica will work fine, there maybe a slight global adjust for the B+W but the corners are clean. I noticed on the WATE the B+W tended to look a touch green. Now having said all that i am clean as can be with the leica filters on the WATE but the samples below show the correction was not fully made with the B+W and the WATE 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/23142-samples-of-cyan-shifts-on-wa-lenses-please/?do=findComment&comment=245283'>More sharing options...
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