Is it possible to colligate my Sports Afield 16×32 binoculars?
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September 3, 2010
I must have dropped them or something, and now I'm getting a very bad double image when I look through them. There are no obviously-placed re-alignment screws for my prisms.
I'm just wondering if these binoculars are even made to be adjusted like that, and if so, where my alignment screws are?
Thanks.
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let the professional fix it for you
There usually are no screws – you may have lost a shim under a prism. The first thing I would check is the 2 barrels that hold the objective lenses – some times dropping them can mess up the threads used to screw the barrels onto the main body. You need to unscrew them and carefully replace them, If threads are stripped, use T-tape on the threads to try and get a tight fit. You may have a damaged prism or an objective lens that is tilted. Try to align the objective lens barrels first – that usually cures the problem, but if one barrel has stripped threade, use T-tape and treat them gently from here on out.
You might need an alignment jig to hold them, and a laser, and a pair of + targets the same distance appart as the objective lenses. Then, I guess, you could force the prisms into place if no screws showing.
Some screws can be found by removing the leatherette cover from the housing. Some are only seen after you unscrew the objective barrels.
http://www.bargainoutfitters.com/net/cb/cb.aspx?a=372569&pn=1 shows yours. The roof prism ones are especially critical on alignment. If you are lucky, only the exterior hinge is bent, not the internal works. Do the barrels sit flat on a tabletop?
Considering how economical some new binoculars can be, just go to Orion and get new ones. http://www.telescope.com.