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  • Infra Red

    As mentioned in threads in the 'Oxford Trip' I've put some images up showing some earlier IR experiments that I did using 2 filters. Which 2 I'm no longer sure - one was most probably a Hoya R72.
    One filter created a 'red' image. the other a 'purple' image. The red image converted to a more pleasing result with less 'keyboard clicks' than the purple one.
    I used these two filters on a holiday to Crete in 2006. They were used on a tripod (essential) with a Canon 20D with a Canon 28-135mm lens. This meant that I had to purchase a Lee Filter Holder Foundation Kit + 72mm ring. (not cheap). In my early tries I found that light leaked in round the filter edges so that I had to put Velcros strips both on the filter holder and on the filter edges to make it 'light tight'.
    As mentioned earlier the images always are a red/purple colour. They are then converted in Camera Raw by sliding the Saturation slider to -100.
    Further adjustments can be made in Camera Raw or in Photoshop - see notes with each image
    Image 0582 uses filter 1 - this is how it opens in camera raw
    Image 581B has been adjusted in Camera Raw - Saturation to -100 (removes colour), exposure +1.0, Blacks +55
    Image 1868 A using Filter No 2
    Image 1868 B saturation to -100 giving a much more pleasing result with less manipulation
    Image 1875 C Filter 1 used, followed by -100 Saturation, followed by Auto Levels in Image - Adjustments - in Photoshop
    Hopefully this has given some idea of the results & effects using filters.
    Mike
    Attached Files

  • #2
    Re: Infra Red

    Originally posted by Mike View Post
    As mentioned in threads in the 'Oxford Trip' I've put some images up showing some earlier IR experiments that I did using 2 filters. Which 2 I'm no longer sure - one was most probably a Hoya R72.
    One filter created a 'red' image. the other a 'purple' image. The red image converted to a more pleasing result with less 'keyboard clicks' than the purple one.
    I used these two filters on a holiday to Crete in 2006. They were used on a tripod (essential) with a Canon 20D with a Canon 28-135mm lens. This meant that I had to purchase a Lee Filter Holder Foundation Kit + 72mm ring. (not cheap). In my early tries I found that light leaked in round the filter edges so that I had to put Velcros strips both on the filter holder and on the filter edges to make it 'light tight'.
    As mentioned earlier the images always are a red/purple colour. They are then converted in Camera Raw by sliding the Saturation slider to -100.
    Further adjustments can be made in Camera Raw or in Photoshop - see notes with each image
    Image 0582 uses filter 1 - this is how it opens in camera raw
    Image 581B has been adjusted in Camera Raw - Saturation to -100 (removes colour), exposure +1.0, Blacks +55
    Image 1868 A using Filter No 2
    Image 1868 B saturation to -100 giving a much more pleasing result with less manipulation
    Image 1875 C Filter 1 used, followed by -100 Saturation, followed by Auto Levels in Image - Adjustments - in Photoshop
    Hopefully this has given some idea of the results & effects using filters.
    Mike
    Very good Mike, can we see some of your final images

    Patrick

    Comment


    • #3
      Re: Infra Red

      Originally posted by Mike View Post
      As mentioned in threads in the 'Oxford Trip' I've put some images up showing some earlier IR experiments that I did using 2 filters. Which 2 I'm no longer sure - one was most probably a Hoya R72.
      One filter created a 'red' image. the other a 'purple' image. The red image converted to a more pleasing result with less 'keyboard clicks' than the purple one.
      I used these two filters on a holiday to Crete in 2006. They were used on a tripod (essential) with a Canon 20D with a Canon 28-135mm lens. This meant that I had to purchase a Lee Filter Holder Foundation Kit + 72mm ring. (not cheap). In my early tries I found that light leaked in round the filter edges so that I had to put Velcros strips both on the filter holder and on the filter edges to make it 'light tight'.
      As mentioned earlier the images always are a red/purple colour. They are then converted in Camera Raw by sliding the Saturation slider to -100.
      Further adjustments can be made in Camera Raw or in Photoshop - see notes with each image
      Image 0582 uses filter 1 - this is how it opens in camera raw
      Image 581B has been adjusted in Camera Raw - Saturation to -100 (removes colour), exposure +1.0, Blacks +55
      Image 1868 A using Filter No 2
      Image 1868 B saturation to -100 giving a much more pleasing result with less manipulation
      Image 1875 C Filter 1 used, followed by -100 Saturation, followed by Auto Levels in Image - Adjustments - in Photoshop
      Hopefully this has given some idea of the results & effects using filters.
      Mike
      Mike, can you show us some of your IR shots via the new IR gallery category I set up today? Bart Aldrich has already added some of his own, taken with a D200 at fairly normal exposure settings - so either he has a modified camera like you or he's using some special processing of standard colour shots.

      Ian
      Founder/editor
      Digital Photography Now (DPNow.com)
      Twitter: www.twitter.com/ian_burley
      Flickr: www.flickr.com/photos/dpnow/
      Pinterest: www.pinterest.com/ianburley/

      Comment


      • #4
        Re: Infra Red

        They are very impressive Mike and thanks for all the info. I have jotted down the name of the filters and will investigate further at my camera shop.

        I did some messing about in PS (actually Elements 4 with some add ons) last night with the red compoment lightened the mid tones and added in some shadows from the blue component and came up with these. The thing I couldnt get right was darkening the sky to the same extent as the IR filter does.
        Attached Files
        "My own suspicion is that the universe is not only stranger than we suppose, but stranger than we can suppose."
        --John Haldane

        Comment


        • #5
          Re: Infra Red

          Originally posted by spl View Post
          They are very impressive Mike and thanks for all the info. I have jotted down the name of the filters and will investigate further at my camera shop.

          I did some messing about in PS (actually Elements 4 with some add ons) last night with the red compoment lightened the mid tones and added in some shadows from the blue component and came up with these. The thing I couldnt get right was darkening the sky to the same extent as the IR filter does.
          The first and last are pretty good Sue - I would have been fooled!

          Ian
          Founder/editor
          Digital Photography Now (DPNow.com)
          Twitter: www.twitter.com/ian_burley
          Flickr: www.flickr.com/photos/dpnow/
          Pinterest: www.pinterest.com/ianburley/

          Comment


          • #6
            Re: Infra Red

            Originally posted by spl View Post
            They are very impressive Mike and thanks for all the info. I have jotted down the name of the filters and will investigate further at my camera shop.

            I did some messing about in PS (actually Elements 4 with some add ons) last night with the red compoment lightened the mid tones and added in some shadows from the blue component and came up with these. The thing I couldnt get right was darkening the sky to the same extent as the IR filter does.
            As Ian has said, the first & last are jolly good attempts. The difficulty is getting foliage almost white without losing too much detail.
            Mike

            Comment


            • #7
              Re: Infra Red

              Thanks for comments. Its really a particular tonal range within green eg. sunlit green which goes pale - other shades of green stay darkish.

              I put the middle two in because although not obvious in isolation, there was an effect on the sunlit green parts here as well giving a greater contrast among the greens overall and thus a sharper feel to the image. I should have included straight gradient map conversions of these for comparison.
              "My own suspicion is that the universe is not only stranger than we suppose, but stranger than we can suppose."
              --John Haldane

              Comment


              • #8
                Re: Infra Red

                Originally posted by spl View Post
                Thanks for comments. Its really a particular tonal range within green eg. sunlit green which goes pale - other shades of green stay darkish.

                I put the middle two in because although not obvious in isolation, there was an effect on the sunlit green parts here as well giving a greater contrast among the greens overall and thus a sharper feel to the image. I should have included straight gradient map conversions of these for comparison.
                Before I obtained a converted camera I played around in Photoshop to see how far I could get there. I've found two images which seemed to have 'something' - they are very grainy and soft. It was after this period of dabbling that I decided to go for the camera - the best of both worlds. I haven't yet investigated CS3 for IR conversions. I suspect that it will be closer to the real thing.
                Attached Files

                Comment


                • #9
                  Re: Infra Red

                  Originally posted by Mike View Post
                  Before I obtained a converted camera I played around in Photoshop to see how far I could get there. I've found two images which seemed to have 'something' - they are very grainy and soft. It was after this period of dabbling that I decided to go for the camera - the best of both worlds. I haven't yet investigated CS3 for IR conversions. I suspect that it will be closer to the real thing.

                  Mike has made an interesting comment here, bearing in mind his photographic development has blossomed with digital, although he was also a very good transparency worker. Off the images featured on this post he says "are very grainy and soft" the truth is Infra-red film is just that, Infra Red from a modified camera is sharp clean and has contrast. to get to the film effect work would still have to be done in Photoshop to add grain and give a the rather special soft glow film has.
                  I will try and find one or two of my old prints or negatives made from Kodak's Infra-red film and post them to this discussion.

                  Another important point with Infra-red, is its effect is greatest in bright sun,
                  foliage in particular radiates the Infra-red wave length, dark tough foliage doesn't have this effect to the same extent.

                  Its all good fun experimenting, I have had a soft spot fot Infra-red for years and can't wait to get the new Canon 40D and get my old 10D converted.

                  Patrick





















                  Patrick

                  Comment


                  • #10
                    Re: Infra Red

                    Originally posted by Patrick View Post
                    Mike has made an interesting comment here, bearing in mind his photographic development has blossomed with digital, although he was also a very good transparency worker. Off the images featured on this post he says "are very grainy and soft" the truth is Infra-red film is just that, Infra Red from a modified camera is sharp clean and has contrast. to get to the film effect work would still have to be done in Photoshop to add grain and give a the rather special soft glow film has.
                    I will try and find one or two of my old prints or negatives made from Kodak's Infra-red film and post them to this discussion.

                    Another important point with Infra-red, is its effect is greatest in bright sun,
                    foliage in particular radiates the Infra-red wave length, dark tough foliage doesn't have this effect to the same extent.

                    Its all good fun experimenting, I have had a soft spot fot Infra-red for years and can't wait to get the new Canon 40D and get my old 10D converted.

                    Patrick
                    Anyone interested in learning more about IR might like to checkout this site




                    Patrick

                    Comment

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