BOP-REL Binocular

[servicepub (RIP)]

Beaconing Optical & Precision Materials of Granby, QC (BOP) was contracted to work on Binoculars, Prismatic, No 2 Mk 2 (6x30). In my optics research I found no mention of work on 7x50 although this could post-date the earlier contract.

[WpgBinocular]

For several years I have enjoyed collecting vintage binoculars.
The collection of over 50 mostly vintage binoculars many of them military or with a military history can be viewed at:
http://www.flickr.com/photos/binocwp...405689/detail/
I would appreciate any comments, further information or corrections the members of this forum could provide about these binoculars and my descriptions of them.
In particular, I am researching the BOP filter conversion of the Canadian 7X50 REL binocular. If you have any 7X50 REL binoculars or a BOP converted one, I would be most interested in its details such as model #, year of manufacture, number of dry air ports, serial number, presence of coated lenses, presence of yellow Admiralty arrows, and any other information you may have about its history and manufacture.

[servicepub (RIP)]

Here is what I found a few years ago. Again, nothing on these in a 7x50 configuration.

"As part of a Canadian Army standardisation programme for all
manufacturers and makes/marks of No. 2 binoculars, Beaconing Optical &
Precision Materials of Ganby, QC (BOP) was approached to modify three (3)
binoculars, Prismatic, No 2 Mk 2, manufactured by Universal Camera (USA).
These were serial numbers 11510, 14451 and 12721. The modifiations included
work on; Axles, Hinges, Prism mounting plate, and; Fixing (cementing) the
Prism. My documents show that the work was done for a cost of $280.00
'however the price for a quantity job will be considerably reduced'. This
implies that a wide-ranging programme was contemplated. My copy of the
original drawing clearly shows the BOP/Canada truncated oval logo."

[Lynn Eades]

As you are the man to ask, I have a picture of a bracket in an Armoured Observation Post. ( a Bren carrier built to use as an observation post for spotting etc for artillery units) The carrier has a wide opening shutter where the gun slot would normally be,for veiwing through, with bino's. On the inside is a swinging bracket, that looks like a support for the binos.( see pic below)
The question is; Were there any binos that were made to be supported/steadied on a central support.

[WpgBinocular]

This is a little out of my area because I collect only hand-held binoculars, but the answer to your question is yes there were a lot of binoculars which would have been steadied on a central support. There was a class of large and heavy binoculars (10X80's and 12X60's) which were used by anti-aircraft units for aircraft identification and target acquisition the best ones probably being made by Zeiss. They were mounted on tripods and cowlings and enabled observers to ascertain bearing and elevation of targets. There is another class of naval deck mounted binoculars of the same size and I think also larger up to 20X again used for target acquisition and determination of bearing of target. There were other naval binoculars of low power such as 6X with a very wide field of view which were mounted on the conning tower of a submarine and were submersible to great depths. Again, in spite of the low power these were heavy binoculars. I have seen one made by Bausch & Lomb. Also, various holders and brackets were produced which would hold conventional hand-held binoculars, in WWII 6X30 being the standard infantry configuration and 7X50 the standard naval binocular. This is what the bracket you reference was probably meant to hold. In the sinking of the Bismark action, the first sightings of the German warships were made with a Barr & Stroud CF41 7X50, the standard hand-held British naval binocular, which had been mounted on enemy bearing indicators.
I hope this answers your question. Most of what I've described is correct, but I do stand to be corrected on the details by someone out there who is more knowledgeable in the area than I am.
Frank

[Lynn Eades]

Thanks for all of that. The collective knowedge base here is amazing.
I was considering a post to ask the question, and when this thread came up, I just had to ask.

[BCA]

In the late 1980's (?) there were many pairs of 7x50 REL binoculars sold at Crown Assets sales in the Toronto area. Amongst them I saw a few of the BOF 7x50 binoculars with the adjustable filters. I still have one pair: there are no broad arrows impressed into the leatherette as shown on Mike's binoculars but the markings are generally the same except that the right side is embossed C.G.B. 57 G.A.
R.E.L. 7 x50
7212-C
There are no other markings such as date etc. The 2 screw heads on eiher side of each filter selection knob are painted with red paint, I assume to indicate if they have been tampered with if the paint has been disturbed.
....... Brian