tookaphotoof Posted May 9, 2014 Share #1 Posted May 9, 2014 Advertisement (gone after registration) Whilst creating an English only pdf file of the manual I stumbled across this text. I actually thought this was the best solution to get rid of the purple / magenta clothing I sometimes had. Other ways to solve this besides using the filter they advice me not to use? Note:Leica UV/IR filters specially developed for use on the Leica M8 and M8.2 should not be used on the Leica M as they can cause color shifts at the edges of pictures, particularly when using wide angle lenses. Link to post Share on other sites More sharing options...
Advertisement Posted May 9, 2014 Posted May 9, 2014 Hi tookaphotoof, Take a look here nice purple clothing.... I'm sure you'll find what you were looking for!
jaapv Posted May 9, 2014 Share #2 Posted May 9, 2014 Not quite true. I use UV/IR filters on the M240 for all focal lengths down to and including the Summicron 35 asph. I have yet to see a colour shift and it makes my postprocessing life easier... Link to post Share on other sites More sharing options...
Mr_Jones Posted May 9, 2014 Share #3 Posted May 9, 2014 With the greatest respect to your experience and although I agree and use uv/ir filters on the M too, 35mm wouldn't really be considered wide in this context would it? Out of interest have you noticed colour shift on anything wider than 35? Link to post Share on other sites More sharing options...
Bill W Posted May 9, 2014 Share #4 Posted May 9, 2014 A lot of folks have continued to use their UV/IR filters from the M8 days. I sold all of mine back when I got my M9 and only use a UV on my M. YMMV. Link to post Share on other sites More sharing options...
Dougg Posted May 10, 2014 Share #5 Posted May 10, 2014 Over the winter I used all my wide lenses on the M, and created CornerFix profiles both with and without the Cut filter.... 18mm Distagon, 4.5/21mm C-Biogon, 21mm Elmarit ASPH, 25 Biogon, 25 Skopar, 28mm Summicron and some 35's (2.8 Summaron, v.1 Summicron, 1.4 Nokton SC, both Biogons, Summilux non-FLE). With the IR Cut filter... Typically, and varying from a slight to moderate degree, red edges right and left countered by blue corners. This strange mix was worst on the 21 Biogon but I suspect a second run through CornerFix with an appropriate profile could bring it around. I was surprised to see slight blue shading into the corners on the Summicron, not very noticeable until there's a CornerFixed version of the pic to compare to. And there were no visible effects with the 35mm lenses except the 2.8/35 C-Biogon. So, in tune with Jaap's comment, no problems down to 35mm. Below that some mostly mild fixable issues with color edges and corners. I won't hesitate to use my wider lenses, but will expect to run the files through CornerFix. Example of the worst effects... 4.5/21mm C-Biogon with IR Cut filter, before and after CornerFix, balanced for identical centers... 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/226829-nice-purple-clothing/?do=findComment&comment=2587260'>More sharing options...
jaapv Posted May 10, 2014 Share #6 Posted May 10, 2014 With the greatest respect to your experience and although I agree and use uv/ir filters on the M too, 35mm wouldn't really be considered wide in this context would it? Out of interest have you noticed colour shift on anything wider than 35? I cannot recall problems on the Summilux 24, but I cannot guarantee that as I was not looking for it. It may have been masked by the subjects. Link to post Share on other sites More sharing options...
tookaphotoof Posted May 10, 2014 Author Share #7 Posted May 10, 2014 Advertisement (gone after registration) Thanks for all the replies. I think I'll just keep using the ir/cut filter as I haven't encountered a colour shift problem, yet. Bill Wendlandt, if you use a normal uv filter, don't have that weird purple / magenta colour sometimes? And if so, how do you solve it? I was thinking I needed a few extra uv/ir filters as I find it time consuming to have to switch lens 'and' filter when I'm shooting outside. Link to post Share on other sites More sharing options...
kdriceman Posted May 10, 2014 Share #8 Posted May 10, 2014 For what it's worth, I use a B&W UV/IR cut filter on most of my lenses with the M. Attached is a 'with filter' and 'without filter' using my 21 Super Elmar. It exhibits a slight red cast on the edge without the filter... note especially the sidewalk in the lower right corner. Note,the first image is the one with the filter attached. Also note - Lens automatically detected by M240, so Leica lens corrections are presumably applied. If you want to play with the DNG's, they are here: https://www.dropbox.com/sh/obkldy0k51kti23/AADBj6bjchhEXLrk1Ke4XCjFa 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/226829-nice-purple-clothing/?do=findComment&comment=2587568'>More sharing options...
Dougg Posted May 11, 2014 Share #9 Posted May 11, 2014 The above is consistent with what I see with most of my wide lenses... Warmish sides overcome by the cyan influence of the UV/IR Cut filter, overdone a bit to result in cool corners. But, like others have said, I too consistently use the Cut filter on my lenses with the M240 as well as my M8 where the side and corner effects disappear with the smaller sensor. I am even trying a UV/IR Cut filter on the S2 now. Doug Link to post Share on other sites More sharing options...
rirakuma Posted May 11, 2014 Share #10 Posted May 11, 2014 Here's a pic showing IR contamination, my pants were actually olive/grey. I usually leave UV/IR filters on for the M240 as well except on the noct because it worsens vignetting and smearing. Link to post Share on other sites More sharing options...
tookaphotoof Posted May 11, 2014 Author Share #11 Posted May 11, 2014 Thanks, I've downloaded the files to play with. Having a go finding the BW ir/cut filters. Saves me quite a bit of money compared to the Leica filters. Link to post Share on other sites More sharing options...
jaapv Posted May 12, 2014 Share #12 Posted May 12, 2014 I recommend: Willkommen bei Foto Huppert Usual disclaimer, just a satisfied customer etc.. Link to post Share on other sites More sharing options...
tookaphotoof Posted May 12, 2014 Author Share #13 Posted May 12, 2014 Thanks Jaap. Link to post Share on other sites More sharing options...
bocaburger Posted May 13, 2014 Share #14 Posted May 13, 2014 I don't find that severe an IR contamination issue with my M9. Is the M240 worse, more back in the direction of the M8? I only used an M240 for a few days but I didn't notice it, but I wasn't purposely shooting black synthetic subjects to test it either. Green foliage did look a little yellow compared to the M9 now that I think about it, but I was assuming it was a WB issue. I never imagined it might be a reversion to higher IR contamination. Link to post Share on other sites More sharing options...
jaapv Posted May 13, 2014 Share #15 Posted May 13, 2014 I find the M240 slightly more IR sensitive than the M9 - in normal shooting it is not a bother, and it is well within the limits of postprocessing. Quite unlike the M8 which was impossible to tame without filters. Link to post Share on other sites More sharing options...
tookaphotoof Posted May 13, 2014 Author Share #16 Posted May 13, 2014 Had a stroll around the webshop clicked a couple of ND filters and started to wonder myself something. If I need to use the ir/cut filter together with the ND filter in landscape photography, wouldn't I end up with very strong vignetting? Anyone tried that? I might want to try to fix the issue without the ir cut filter first. Anyways, time to concentrate myself on cleaning the sensor on the M240 also. Just 20 something oilspots moving around. Life was so easy with the MP. Maybe I should only use my lenses like some people tell me to. Leica 'designed' them to only be used on the largest aperture! Yeah yeah.... Link to post Share on other sites More sharing options...
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