This will be the second Focal I've added to my collection. The first being a rather unique, standard sized 7x35 12 degree I posted earlier, that uses a weak focal reducer lens on the prism pate.
This one had been on the pile to sell until I took it out and began fiddling with it.
The Quick Focus is normally not a type to my liking, but on this bin, it seems as if they just took the standard fine threaded focus shaft and mated it to a wider paddle type focus cylinder. So that when operated, it makes a really wide arc of slow, precise travel. Unlike most fast focus setups that zip the focus shaft so rapidly, one tends to pass the sweet spot far too easily. And I've seen a few where it was tough to hold focus. Pressure on the EP bridge would force the whole unit down, due, no doubt, to the quick pitch of the threading used. Not this one! Solid as a rock.
Another thing I found pretty interesting is the size and weight. This one is about 1/3 the size and heft of my other 8X40 wide, a Zenith 10 degree. And being Fully Coated, it is noticeably brighter than the Zenith that has just Coated optics. Both sport BK-7 prisms.The sweet spot on this Focal/Siam Cat is huge! I'd guess 85%, perhaps more. And the rather small-for-a-wide-angle bin EPs are protected by an attached ocular guard. I wish all binoculars came so equipped. Sears was known for providing one on most of their models. The ends of the objective bell housings are rubber covered.
This JB-133 model has superb fit and finish. The chassis covering consists of a small suction cup shaped raised pattern, in lieu of the pebble grain finish of earlier years. With its roll down rubber eyecups, quick focus, and square stiff leather case, I'd guess these are from the mid to late 1970s. Although I just noticed the number 88 on the right prism cover in what looks to be a serial # of sorts: 20-20-88. Maybe a dedicated Focal collector could chime in. They are in minty condition with two objective covers, the JTII sticker on the bin in pristine shape, its original desiccant packet and instruction booklet.
Haven't opened them up, yet, because there are no issues inside or out. May just pop the hood to see if there is another reducer lens in there. Don't know if one was required to obtain the 9 degree FoV in such a svelette and compact package. All in all a nice little binocular that just begged to stay. One, it turned out, I could not say no to.
Edited by Wayne Costigan, 12 January 2018 - 08:41 AM.