Doug,
Thanks for a very comprehensive and detailed report. What you tell about the functioning differences for the IS sound very much like what I have experienced with my early production vs. rather recent production 10x42 L IS's.
On the changes or lack thereof in the optical formula of the eyepieces, you could compare reflections patterns between the two, by having a bright light source such as a lamp behind you and studying the relative sizes and shapes of the reflected image of the lamp from the various surfaces of the optical assembly. Henry Link has often posted photos of such comparisons, and they are very informative in telling whether or not two systems are identical.
You can do the same viewing the objective ends of course.
Kimmo
Thanks for a very comprehensive and detailed report. What you tell about the functioning differences for the IS sound very much like what I have experienced with my early production vs. rather recent production 10x42 L IS's.
On the changes or lack thereof in the optical formula of the eyepieces, you could compare reflections patterns between the two, by having a bright light source such as a lamp behind you and studying the relative sizes and shapes of the reflected image of the lamp from the various surfaces of the optical assembly. Henry Link has often posted photos of such comparisons, and they are very informative in telling whether or not two systems are identical.
You can do the same viewing the objective ends of course.
Kimmo