Floppy Hinge on large bins

[OliverBath]

I have a set of Helios 28x110. I have a problem with the IPD adjustment it is so loose that the weight of the binoculars cause both barrels  to flop down how do you tighten it ?

 

 

[Stormbringer]

I had a cheap pair of 10x50 bins with same problem and sorted it by removing the ipd scale and tightening the big slot headed screw located underneath the guage 

I was lucky it was an exposed cross head screw holding guage in place and not concealled under a metal sticker (not done this on observation bins so may be diferant)

Dont try this tho till other folks confirm thats how to do it

also it may void warranty depending on age of bins

[PeterW]

Annoying, maybe you can make some spacers to wedge the barrels apart to your IPD... not ideal, but avoids risking damage.

 

Peter

[Damo636]

You could try tightening the retaining nut at the end of the central bar at the objective end of the instrument (behind the  plastic screw off cover). Here's a post of mine from a few years back on Cloudy Nights where I had a similar problem with a 10x50......

 

https://www.cloudynights.com/topic/480777-fujinon-10x50-fmtr-sx-problem/