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Message: <blockquote data-quote="elkcub" data-source="post: 3628149" data-attributes="member: 14473">Now, now my friend it was only a slip in my keypad.  My IPD is a mere 65 mm, and my height has now shrunk to only 6 ft.  <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink    ;)" loading="lazy" data-shortname=";)" />I never got into astronomical viewing, and now my eyes are growing dim.  So next time around I'll put it at the top of my bucket list.  No, I've trusted the manufacturer to the 12 deg. designation.  Hiyoshi is pretty good with that sort of thing, and this instrument is every bit as fine as any Audubon I've handled.  ($10 at the Thrift Shop, with leather case.  :king<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" /> At first use I came away disoriented and headachy, and thought it needed alignment; but then realized that I was setting the IPD by making the field stops overlay in a circle.  Bad, bad.  Setting the IPD by ruler was the answer, or the calibrated scale.  Unfortunate that the ER is so short.  But you agree with me that the extra field width basically helps with peripheral movement detection.  Regards,Ed</blockquote>