tashley Posted January 17, 2009 Share #1 Posted January 17, 2009 Advertisement (gone after registration) I've posted some of these images before but processed rather differently. They're all taken on an M8 with CV 35 F2.5 Skopar and the ones with motion blur (intentional) are ISO 160 and long-ish exposures (1/11th and 1.5 seconds) whereas the one with no blur (the first one) was at 1/90th and ISO 640. The filter was a B+W 092 IR I've been rather bored with the reddish/magenta look of the files and experimentation usually had them looking best in B&W but I had hankered to try a look I saw on PBase a while back for example at IR - infrared crazy colours 2 #177 photo - Daniella T. photos at pbase.com Now I've worked it out. Finally. The effect is rather 'fun with filters' but here's what you do: Open the file in Photoshop. Image>Adjust>Auto Colors Image>Adjust>Channel Mixer then invert then swap the red and blue values in each of the red and blue channels. Then back to LR for some cleaning up. These are just down and dirty but I think it beats the pink look! T 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/74366-m8-ir-how-to-get-the-best-from-it/?do=findComment&comment=780925'>More sharing options...
Advertisement Posted January 17, 2009 Posted January 17, 2009 Hi tashley, Take a look here M8 IR - how to get the best from it?. I'm sure you'll find what you were looking for!
j_lir Posted January 17, 2009 Share #2 Posted January 17, 2009 so no UV/IR Filter on the lens? or keep the UV/IR Filter on the lens? thanks! Link to post Share on other sites More sharing options...
stunsworth Posted January 17, 2009 Share #3 Posted January 17, 2009 Many thanks Tim, I'll have to have a play once more with my IR images. Link to post Share on other sites More sharing options...
stunsworth Posted January 17, 2009 Share #4 Posted January 17, 2009 so no UV/IR Filter on the lens?or keep the UV/IR Filter on the lens? Think about what would happen if you have two filters on the lens. One that blocks IR light, and another that blocks anything that _isn't_ IR. Link to post Share on other sites More sharing options...
chris_livsey Posted January 17, 2009 Share #5 Posted January 17, 2009 Think about what would happen if you have two filters on the lens. One that blocks IR light, and another that blocks anything that _isn't_ IR. A very long exposure? Link to post Share on other sites More sharing options...
farnz Posted January 17, 2009 Share #6 Posted January 17, 2009 Tim, You've produced some very pleasant images that I much prefer to many of the 'faux-IR' colour images that I've seen. The key is the 092 filter that lets some of the colour information around the 700 nm waveband through. I tried the process you posted on images I'd shot through an 093 filter but there isn't enough colour information to work with (the red channel was 100 and the blue channel was 0) and ended up with dull b&w pictures. (Never mind though because I still like the high contrast IR b&w pictures that the 093 offers.) Now, where's my 092 filter got to ... Pete. Link to post Share on other sites More sharing options...
tashley Posted January 17, 2009 Author Share #7 Posted January 17, 2009 Advertisement (gone after registration) Tim, You've produced some very pleasant images that I much prefer to many of the 'faux-IR' colour images that I've seen. The key is the 092 filter that lets some of the colour information around the 700 nm waveband through. I tried the process you posted on images I'd shot through an 093 filter but there isn't enough colour information to work with (the red channel was 100 and the blue channel was 0) and ended up with dull b&w pictures. (Never mind though because I still like the high contrast IR b&w pictures that the 093 offers.) Now, where's my 092 filter got to ... Pete. It should still work: those are the same values my files have. In Channel Mixer (after you've done the Auto Colour bit) start with the red channel and slide the red slider to zero and the blue to 100. Now switch to the Blue channel and put red to 100 and blue to 0. Link to post Share on other sites More sharing options...
tashley Posted January 17, 2009 Author Share #8 Posted January 17, 2009 so no UV/IR Filter on the lens?or keep the UV/IR Filter on the lens? thanks! No UV/IR filter. Link to post Share on other sites More sharing options...
farnz Posted January 17, 2009 Share #9 Posted January 17, 2009 It should still work: those are the same values my files have. In Channel Mixer (after you've done the Auto Colour bit) start with the red channel and slide the red slider to zero and the blue to 100. Now switch to the Blue channel and put red to 100 and blue to 0. Tim, Here's what I get with your suggestions for pp but with an 093 filter. It's not quite b&w but there isn't much colour. I haven't bothered to adjust the contrast etc because I've only posted the picture to show the '093 effect' for interest. Tbh I just don't think that the 093 will allow PS enough colour information to work with to do any better than this. (Otoh the 093 can produce lovely white folliage when processed as b&w.) Pete 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/74366-m8-ir-how-to-get-the-best-from-it/?do=findComment&comment=781130'>More sharing options...
stunsworth Posted January 17, 2009 Share #10 Posted January 17, 2009 I got similar results to Pete using images taken with the same filter. I may get a 092 and have a play. Link to post Share on other sites More sharing options...
LeonardT Posted January 17, 2009 Share #11 Posted January 17, 2009 I've been rather bored with the reddish/magenta look of the files and experimentation usually had them looking best in B&W but I had hankered to try a look I saw on PBase a while back for example at Tim, These are some of the best IR photos I've seen. I shoot a lot of IR with the M8 but now I must try your technique. I'll have to check the specs of your 092 filter versus my Hoya R72. In the meantime I have a few hundred photos I can play with. Thanks a lot for the post. Len Link to post Share on other sites More sharing options...
tashley Posted January 17, 2009 Author Share #12 Posted January 17, 2009 Tim, Here's what I get with your suggestions for pp but with an 093 filter. It's not quite b&w but there isn't much colour. I haven't bothered to adjust the contrast etc because I've only posted the picture to show the '093 effect' for interest. Tbh I just don't think that the 093 will allow PS enough colour information to work with to do any better than this. (Otoh the 093 can produce lovely white folliage when processed as b&w.) Pete [ATTACH]122821[/ATTACH] Hmmm, that's annoying for you - and sorry to have led you a merry dance! You could always cheat... 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/74366-m8-ir-how-to-get-the-best-from-it/?do=findComment&comment=781203'>More sharing options...
tashley Posted January 17, 2009 Author Share #13 Posted January 17, 2009 Tim, These are some of the best IR photos I've seen. I shoot a lot of IR with the M8 but now I must try your technique. I'll have to check the specs of your 092 filter versus my Hoya R72. In the meantime I have a few hundred photos I can play with. Thanks a lot for the post. Len Thanks Len, have fun! I found that boosting the level of exposure and blacks slightly in Lightroom and playing with the hue local adjustment tool, plus adding an ND sky underexposure graduation helps... Link to post Share on other sites More sharing options...
farnz Posted January 17, 2009 Share #14 Posted January 17, 2009 Tim, These are some of the best IR photos I've seen. I shoot a lot of IR with the M8 but now I must try your technique. I'll have to check the specs of your 092 filter versus my Hoya R72. In the meantime I have a few hundred photos I can play with. Thanks a lot for the post. Len Len, The R72 is a little closer to the 093 than the 092. (In the following figures, 0% means all light at that wavelength is passed, and 50% means that half the light at that wavelength is blocked so it is possible to estimate the steepness of the cut-off curve.) The visible spectrum extends from about 400 nm (blue) to 700 nm (red) and most people can't see wavelengths beyond about 720 nm. 092 (= Wratten 89B): 680 (0%); 720 (50%) R72 (= Wratten 87): 720 (0%); 800 (50%) 093 (= Wratten 87C): 790 (0%); 850 (50%) Pete. Link to post Share on other sites More sharing options...
offshore Posted January 17, 2009 Share #15 Posted January 17, 2009 I started experimenting with IR in the M8 right out of the box almost three years ago. The IR capabilities of the M8 were one of the reasons I purchased the camera. I use an old chrome Leica IR filter, of which I have no clue as to its NM range, a Hoya IR and a Lee IR gel cut to fit the shade for my 35 cron. I shoot RAW, open in PS3, go directly to channels and convert to monochrome, adjust RGB, open curves to pull up blacks and retain highlights, adjust levels if needed. Here is a link to my article in LFI. LFI Gallery - Galerie Link to post Share on other sites More sharing options...
tashley Posted January 18, 2009 Author Share #16 Posted January 18, 2009 I started experimenting with IR in the M8 right out of the box almost three years ago. The IR capabilities of the M8 were one of the reasons I purchased the camera. I use an old chrome Leica IR filter, of which I have no clue as to its NM range, a Hoya IR and a Lee IR gel cut to fit the shade for my 35 cron. I shoot RAW, open in PS3, go directly to channels and convert to monochrome, adjust RGB, open curves to pull up blacks and retain highlights, adjust levels if needed. Here is a link to my article in LFI.LFI Gallery - Galerie Those are very tasty - I missed that LFI but they are very nice shots with nice tonal density. Link to post Share on other sites More sharing options...
offshore Posted January 18, 2009 Share #17 Posted January 18, 2009 Those are very tasty - I missed that LFI but they are very nice shots with nice tonal density. Thanks Tashley the initial work I did was recognized by LFI in the 11/2007 issue and the link is here-http://gallery.lfi-online.de/gallery/index.php?exhibition=9 I recently returned from Oaxaca where I did a series of IR at night in the cemeteries during the Day of the Dead ceremonies that are also on the LFI site. Enjoy! Link to post Share on other sites More sharing options...
wlaidlaw Posted January 18, 2009 Share #18 Posted January 18, 2009 Tim, That is a great technique - thank your for developing it. Here is one I did with an 092 filter of the state building in Annapolis, Maryland and then treated as per your instructions. Wilson 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/74366-m8-ir-how-to-get-the-best-from-it/?do=findComment&comment=782557'>More sharing options...
chris_livsey Posted January 18, 2009 Share #19 Posted January 18, 2009 ISTR from another thread, that may not even have been on this forum, that the white balance should be set to tungsten. Is this correct, relevant,necessary etc ? Link to post Share on other sites More sharing options...
wlaidlaw Posted January 18, 2009 Share #20 Posted January 18, 2009 ISTR from another thread, that may not even have been on this forum, that the white balance should be set to tungsten.Is this correct, relevant,necessary etc ? Chris, For IR, I always (or at least every time I remember) do a manual white balance after I have fitted the IR/ B+W 092 filter. Originally I was carrying around an Expodisc but this seems to be overkill somewhat. Any pale/white/grey surface works just fine. As I am taking in DNG, I can always adjust afterwards. If you don't do this and rely on auto WB, you will get a very brown/orange image. Wilson Link to post Share on other sites More sharing options...
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