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Barr and Stroud CF25

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    Barr and Stroud CF25

    Something of interest only to a minority of collectors and naval re-enactors.
    Attached a set of Barr and Stroud CF25 binoculars , I had been looking for a set in good order for quite a while- I'm more than pleased with this set.

    NPL dated to 1942 7x42 with extending anti-spray hoods they stand a little over 16cm in height, they have the usual internal filter system and clickstop diopter adjustment mechanism. ( A trade mark in most Barr and Stroud sets).

    Clean , clear , needing no cleaning or repairs and extremely light - I reckon that the late war sand coloured 6 x30 "CAG" sets are heavier.

    In optic circles Barr and Stroud seems to be making a come back - good CF41's ( used to provide size contrast in the attached jpegs ) are becoming more sought after ( Damaged CF41's are hard to give away !).
    The CF25 does not turn up that often , even on eBay. ( Which seems to have cornered the market in optic trading).

    Might be considered rough in appearance when compared to some German sets but in contrast to almost all leitz Porro II sets you will find that B&S coverings don't degrade and fall off.

    The internal filter system ( again something very British) makes them user friendly in bright conditions.

    FOV 7.18 degrees, 127 metres at 1,000 metres , Porro II construction.

    Hans Seeger ("Militarische Fernglaser und Fernrohre in Heer , Luftwaffee und Marine" (2002) and Steve Rohan (" A Guide to Handheld Military Binoculars") both say CF25 did not have coated lens , this set does .
    Application of coatings (Blooming as we "Brits" called it) became standard as the war progressed.
    Attached Files

    #2
    Cf25

    Difference in size.
    Attached Files

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      #3
      Size for size

      Room for no more on top.
      Attached Files

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        #4
        Anti Spray Hoods.

        Something which could only be made in Britain , you won't find anything like this on any other binocular , very British and very 1930 "ish".
        Attached Files

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          #5
          Congratulations on a great find! I have this old set of optics and for the life of me have not been able to divine their use. Maybe you guy's can help.
          Attached Files

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            #6
            #2
            Originally posted by Gary Cain
            Congratulations on a great find! I have this old set of optics and for the life of me have not been able to divine their use. Maybe you guy's can help.
            Attached Files

            Comment


              #7
              3
              Originally posted by Gary Cain
              #2
              Attached Files

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                #8
                #4
                Originally posted by Gary Cain
                3
                Attached Files

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                  #9
                  #5
                  Originally posted by Gary Cain
                  #4
                  Attached Files

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                    #10
                    Gary 6.3 x40 AA Sight.

                    Gary your optic is an ANti- Aircraft sight by Ottway. 6.3 x 40.
                    According to Hans Seegers book it was for use on RN Pom Pom gunnery director stands.
                    Complete examples of this baby are hard to come by , nice one .
                    She has an inbuilt filter system , and ports to allow the optic to be purged of moisture.
                    The graticule can be illuminated.
                    Head rest is missing from your unit, alll the same a nice piece.
                    Thanks for the great pictures , have never seen one so close up . Cheers .

                    Comment


                      #11
                      Barr and Stroud.

                      A quick photo of CF41 in use. Probably a posed photograph for the " folks at home".
                      It was a set like this which made the first sighting of Bismarck in the Denmark Strait.
                      Attached Files

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                        #12
                        Many thanks for the quick ID! I will have to get a copy of that book asap!



                        Cheers
                        Gary
                        Originally posted by behblc
                        Gary your optic is an ANti- Aircraft sight by Ottway. 6.3 x 40.
                        According to Hans Seegers book it was for use on RN Pom Pom gunnery director stands.
                        Complete examples of this baby are hard to come by , nice one .
                        She has an inbuilt filter system , and ports to allow the optic to be purged of moisture.
                        The graticule can be illuminated.
                        Head rest is missing from your unit, alll the same a nice piece.
                        Thanks for the great pictures , have never seen one so close up . Cheers .

                        Comment


                          #13
                          Ottway Sight.

                          Gary found this photograph of your Ottway sight , quite a complex arrangement.
                          Source "Range and Vision" -The First Hundred Years of Barr & Stroud. ( Mainstream Publishing).
                          Attached Files

                          Comment

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