Announcement

Collapse
No announcement yet.

Chimney and ivy, IR

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Chimney and ivy, IR

    Recently I found a set of derelict buildings that are partly overgrown.

    These were taking using my IR-modified E-450.



    AlistairJ

    alistairj.smugmug.com

  • #2
    Re: Chimney and ivy, IR

    These are stunning. Must get a used E series and get it converted, where can I go?

    David
    PBase Galleries:-http://www.pbase.com/davidmorisonimages

    Comment


    • #3
      Re: Chimney and ivy, IR

      Great to see some more IR shots, thanks for posting them, perhaps we should have an IR e-system UK outing one sunny day!

      Cheers

      Chris

      Comment


      • #4
        Re: Chimney and ivy, IR

        Thanks. The conversion was a d-i-y job, I am still working on the AF.

        Chris, it would have to be a sunny day
        AlistairJ

        alistairj.smugmug.com

        Comment


        • #5
          Re: Chimney and ivy, IR

          Hi Alistair,

          I find the contrail in No 1 too distracting but otherwise I really like it. However, that's just my opinion and I'm sure it's inclusion was no accident!

          I love the effect on the ivy in No 2.
          John

          "A hundredth of a second here, a hundredth of a second there � even if you put them end to end, they still only add up to one, two, perhaps three seconds, snatched from eternity." ~ Robert Doisneau

          Comment


          • #6
            Re: Chimney and ivy, IR

            Hi John
            thank you, there was also this one.



            I have been trying different methods of post-processing to bring out the different colours in the image. And I have been swapping the red and blue channels. This makes the sky a dark blue which looks natural (it is usually dark brown in the original file). The 780nm filter I have fitted allows through very little visible light and the RGB photosites are almost equally sensitive across the pass band of the filter. I say almost because there is a difference, which can be observed by photographing a spectrum (I captured a rainbow at one point) and cranking up the saturation, it appears that the longer wavelengths actually get a blue tint and the shorter ones a red tint. For me this entirely justifies the red/blue channel swap step in post-processing. But white balance is critical and I have even noticed this varies with the amount of direct sunlight on the scene. This one has come out with a distinct blue cast.
            AlistairJ

            alistairj.smugmug.com

            Comment


            • #7
              Re: Chimney and ivy, IR

              The cast notwithstanding I like this a lot better. It's bound to take a lot of experimentation to get to know how the modifed camera reacts to different situations.
              John

              "A hundredth of a second here, a hundredth of a second there � even if you put them end to end, they still only add up to one, two, perhaps three seconds, snatched from eternity." ~ Robert Doisneau

              Comment


              • #8
                Re: Chimney and ivy, IR

                Brilliant pictures. I think IR is rather special.

                I know that one trail in the first picture is a bit much, but I think the stronger clouds make it a more interesting/atmospheric image than the one without them.

                Originally posted by AlistairJ View Post
                I have been trying different methods of post-processing to bring out the different colours in the image.
                I expect you've already seen what Andrzej Wrotniak's written about infrared, and all the links he's put at the end of the page
                - my pictures -

                Comment

                Working...
                X