BirdForum is the net's largest birding community dedicated to wild birds and birding, and is absolutely FREE!

Register for an account to take part in lively discussions in the forum, post your pictures in the gallery and more.

Reply to thread

Message: <blockquote data-quote="Patudo" data-source="post: 3635389" data-attributes="member: 139299">Well, Bill, either all my binoculars (including a unit recently serviced by Gary Hawkins at ECBR) and my brother's less than one year old Swarovski 8.5x42 are "way out" of collimation, or I just see things differently to you.  My brother's preferred IPD is a little less than mine, and he sets them up so he sees the single circle - but when I've looked through his binoculars without changing the IPD I see the overlapping circles.  I also find - more so with some binoculars than others - the ocular needs to be placed in the right spot over my left eye to achieve maximum sharpness and if I close up the barrels enough to achieve the single circle, the left barrel goes out of that ideal spot.  I also feel the barrels are closer to my nose than I would like and that my eyes are having to look inwards rather than straight outwards (if that makes sense).  I don't expect anyone else to experience the same, incidentally - just relating how I perceive things.  Birdforum has taught me that we truly do see the world differently.</blockquote>