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  • E-420 converted to full spectrum

    Hi everyone!

    I've finally got round to converting my E-420 to full spectrum, taking out the hot mirror and replacing it with some quartz glass instead. This means that I can now use it for IR photography, or with an external hot mirror as a normal camera.

    I chose to go full spectrum rather than just do an IR conversion because I wasn't sure which spectrum of IR would work best for me, and this gives me the option of switching between different IR filters, but being able to use pretty much normal exposures. I currently have an 850nm and a 760nm filter, and intend to get a 720nm and a 650nm filter too, to see which gives the best effect. I've put the first few attempts in an album (my first on here, this is also my first thread).

    If people are interested I can put up some pictures of the conversion up, but please don't hold me responsible if you have a try and something goes wrong - I took a chance with this and realised there was a risk of messing it up (checking todays images it does look like I have a dust spot or two under the SSWF which means I'll have to open it up again!)

    The other thing I have noticed is that without the hot mirror the images look noticably sharper - the difference without the anti-aliasing filter built into the hot mirror is more visible than I had expected!

    Cheers for reading,

    Ralph.
    Attached Files

  • #2
    Re: E-420 converted to full spectrum

    Thanks for sharing this hack. It's good to hear about and know at least that it's possible (though I'm not brave enough to try myself--the camera would certainly become filled with cat hairs I think). Am looking forward to seeing the images. Bravo!

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    • #3
      Re: E-420 converted to full spectrum

      You are lucky on your side of the pond that there are companies who specialise in these sorts of conversions - there isn't anyone I could find in the UK doing it at the moment, the nearest is in Poland I think. I was lucky enough to be able to do this in the "clean room" at work, however I think my lint free cloth wasn't as lint free as I'd hoped as there are definately a couple of tiny spots on the top of the glass above the sensor now. Hey ho I'll have to strip it and try again.

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      • #4
        Re: E-420 converted to full spectrum

        Very brave Ralph well done. I'd be interested to see how you did it, but doubt I'd have the courage myself. That windmill shot is lovely.
        http://www.flickr.com/photos/flip_photo_flickr/

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        • #5
          Re: E-420 converted to full spectrum

          There is a magical quality with IR I like this and well done you for doing the conversion.

          Tom
          "Who is watching the Watchers, watching the Watchers watching us"

          Its not what you see, it's the way that you see it"

          Flickr http://www.flickr.com/photos/photofxstudios

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          • #6
            Re: E-420 converted to full spectrum

            That's a nice shot of Bidston Hill windmill.
            Regards - Paul

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            • #7
              Re: E-420 converted to full spectrum

              Converting to full spectrum presumably means that it you fit an external UV/IR cut filter you can go back to using the camera normally?


              Sorry - just realised that is probably what you meant by an external hot mirror. I have to use IR-UV cut filters all the time on my Leica M8 which is notoriously IR sensitive. The B+W ones are very effective http://www.robertwhite.co.uk/shop-by...ilter_type=256.

              There are a few of my IR shots here. http://www.flickr.com/photos/barnack...7633000895676/

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              • #8
                Re: E-420 converted to full spectrum

                Have you noticed any problems with moiré since removing the low pass filter?

                Also, have you had any issues with focus accuracy using AF or are you using contrast detect (live view AF) to avoid this?

                Ian
                Founder and editor of:
                Olympus UK E-System User Group (https://www.e-group.uk.net)

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                • #9
                  Re: E-420 converted to full spectrum

                  I would like to see how you did it too.I really like IR and would like to have a go.

                  Are you considering one to hire out?
                  OMD E-M1ii MMF3 8-25 f4 Pro 40-150 f2.8 pro MC-14 12-40 pro 14-42 EZ 9-18 f4.0 -5.6 40 -150f4-f5.6 R Laowa 50mm f2.8 macro Sigma 105 f2.8 macro Holga 60mm plastic Holga pinhole lens lens and an OM2sp

                  I nice view does not mean a good photograph. My FLickr

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                  • #10

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                    • #11
                      Re: E-420 converted to full spectrum

                      Ralph, Thanks for sooo much info I have been teetering on sending an E-1 to the USA for conversion ... maybe I shall do it or pm you

                      I was thinking of creating a"clean room" space (sucking all the air/dog hair and ambient skin & dust particles ...) out of my pop-up studio (with a cover over it) and wearing a shower cap myself and clean white overalls to do the job

                      ps I have my "building PCs tool kit" of soft and plastic tweezers for removing delicate items
                      .
                      .
                      [I].
                      .
                      I Lurve Walking in our Glorious Countryside; Photography;
                      Riding Ducati Motorbikes; Reading & Cooking ! ...


                      http://www.flickr.com/photos/photomagicf1_chevvy/sets/

                      the ONE photo album

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                      • #12
                        Re: E-420 converted to full spectrum

                        A very interesting project, Ralph. I look forward to seeing some more pictures - the windmill is great!
                        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

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                        • #13
                          Re: E-420 converted to full spectrum

                          Very effective shot, Ralph. Looking forward to seeing some more.

                          Originally posted by Ralph Harwood View Post
                          Ian - the only time I have noticed moire (excuse the lack of / above e - can't figure out how to make this computer do it!)

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                          • #14
                            Re: E-420 converted to full spectrum

                            This is way over my head, but very interesting . The windmill shot is super.
                            The picture tells the story, great when you have a bad memory.DW.

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                            • #15
                              Re: E-420 converted to full spectrum

                              Hi Everyone!

                              Chevvyf1 - Good luck with your conversion if you decide to go through with it. I haven't had chance to have a look inside an E-1 yet (apparently there's no second prize in an e-bay auction) but it shouldn't be too much more complicated than an E-420 or an E-500 which I have taken apart. I would avoid the versions with the IS though as they look more difficult. I found a thread on fourthirdsphoto.com where someone converted an E-1 which might be interesting (couldn't get the pictures up on my computer for some reason). It's at http://forum.fourthirdsphoto.com/f52...1-a-29059.html. There is also a thread on this site http://digital-photography.pl/tweaki...ement/#more-99

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