birding-aus

Low light bins

To: "" <>, "" <>
Subject: Low light bins
From: Peter Shute <>
Date: Wed, 9 Mar 2011 12:48:42 +1100
Lloyd, when you say you sling them over your left shoulder, do you mean they 
hang straight down from there, or is the strap diagonally across your chest so 
the binoculars are on your right side?

I also find interesting the comments you and several others have made about 
depth of field. I've read many arguments about this in other forums, with some 
saying they can't see how manufacturers can really vary it. 

Some claim that people are mistaking field curvature (if that's the right term) 
for depth of field. I.e. The focus distance is closer to the observer at the 
edge than in the centre of the view. If that's the case then the most expensive 
pairs with a flat field would have the worst apparent depth of field.

I haven't owned or tried enough pairs to know if this is correct. All mine have 
been very curved.

Peter Shute


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