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    Lens Weatherseal.

    I have an 800mm f5.6 L lens. I bought it used and it was a bit tatty, but optically spot on and I have been very pleased with the images.

    There were nicks and scratches all over the lens, especially the foot, but a day with the proper touch-up paint, a 0000 sable brush and an airbrush brought it back to pristine condition. I purchased a Lenscoat and a Camo weatherproof cover to keep it in that condition.

    That only left the lens mount ring and the weather seal to replace. As you can see from the photo, the previous owner wasn't that gentle when mounting the lens to the body and the weather seal is ripped in many places and the mount ring has been graunched through the plating to the brass in places. A friend had an EF lens that was broken and well beyond economic repair, so he gave it to me so I could use the mount ring, which was in perfect condition. I took the ring off the busted lens, which was good practice before I tackled my 800mm and then went to work. Unfortunately there was a difference between the two mount rings. There were three extra holes drilled sideways into the ring to hold a baffle, that wasn't present on the broken lens. So, remove the ring, replace the new weather seal and replace the original lens mount.

    Not quite as successful as I would have hoped, but I now know how to replace a mount ring and weather seal. The new weather seal is now fitted and two of the four mount screws which were a tad loose are now correctly tightened. I shall now order the correct mount ring.


    IMG_2344a by colin cross, on Flickr


    IMG_2349a by colin cross, on Flickr
    Colin

    #2
    Nice work Colin that must be a lump of kit to handle. Puts a new twist on aerobic exercise
    Peter

    Feel free to browse my
    Website : www.peterstockton-photography.co.uk
    Flickr: https://www.flickr.com/photos/the_original_st/

    Comment


      #3
      Well that's good to know ' COLIN CROSS FOR ALL YOUR CANON REPAIRS'. Very well done no doubt you would have been charged a bomb if you had sent it to a authorised repairer.
      Of interest, can you get spare parts. I need the top of the mood dial for my 5D Mk lV. Came off some time ago when. I was rummaging through some undergrowth.
      Trev

      Equipment - According to the wife more than a Camera Shop got

      Flickr:
      https://www.flickr.com/photos/trevb2639/

      Comment


        #4
        Wow Colin.

        Alan

        Comment


          #5
          COLIN CROSS FOR ALL YOUR CANON REPAIRS
          Interesting you should say that Trev. This is one of my copied slides from over forty years ago, repairing the focussing mechanism from a 300mm F4. It was fully manual in those days .............. no electronics!

          Not sure about the wallpaper though.

          IMG_1922a by colin cross, on Flickr
          Colin

          Comment


            #6
            Interesting that Colin - The Wallpaper, looking at your Avatar picture is that what you got wrapped around the lens, looks very similar to me
            BTW, what a good looking young man you were - what's gone wrong?
            Trev

            Equipment - According to the wife more than a Camera Shop got

            Flickr:
            https://www.flickr.com/photos/trevb2639/

            Comment


              #7
              There is a repair centre in Stoke....might do spares Trev....its often listed in the EOS magazine...
              https://www.hlehmann.co.uk/contents/...you%20achieve.
              Brian Vickers LRPS

              brianvickersphotography.com

              Comment


                #8
                Try this company for spares Trev:

                https://www.londoncameracentre.com/g...k-iv-861-c.asp
                Colin

                Comment


                  #9
                  Excellent. Thank you for sharing. I once had to open a Sigma 500 f/4.5 to tighten the top ring while I was at the racing track. Good thing I always carry some basic tools.
                  969618_10151965355683378_922039987_n.jpg

                  Comment


                    #10
                    For parts try

                    http://www.thelensdoctor.co.uk/
                    Canon 1DX, 50D, EF500 F4.0 L, EF100-400 f/4.5-5.6L I , EF100-400 f/4.5-5.6L II, EF70-200 f/2.8L II, EF180 f3.5L Macro, EF 24-105 f/4L, EF17-40 f/4L, EF2.0X III, EF1.4X III, 430EX II, MR-14EX...

                    Comment


                      #11
                      You can buy a new mounting ring for it here, have used them in the past for getting my anti fog viewfinders, though it says type 2

                      https://www.londoncameracentre.com/c...-usm-813-c.asp
                      Canon 1DX, 50D, EF500 F4.0 L, EF100-400 f/4.5-5.6L I , EF100-400 f/4.5-5.6L II, EF70-200 f/2.8L II, EF180 f3.5L Macro, EF 24-105 f/4L, EF17-40 f/4L, EF2.0X III, EF1.4X III, 430EX II, MR-14EX...

                      Comment


                        #12
                        Thanks Colin, Tony

                        Originally posted by colin C View Post
                        On it's way, so only need to fit it - Mode dial assembly
                        Last edited by Trev B; 06-07-2020, 22:20.
                        Trev

                        Equipment - According to the wife more than a Camera Shop got

                        Flickr:
                        https://www.flickr.com/photos/trevb2639/

                        Comment

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