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Old Thursday 8th October 2015, 10:52   #26
jring
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Originally Posted by The-Wanderer View Post
Did you notice loss of sharpness contrast etc beyond, say, 250 metres- please see the original post?
Oetzis test in the german forum was a castle at 4km - sure something good with larger objectives like a 7 or 10x50 will show better resolution at that range. But at a price - monetary and in what you carry...

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Old Thursday 26th November 2015, 15:01   #27
Edugar
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Hello,
I am new to the forum, a cordial greeting.
Yesterday I received my Pentax Papilio II 6.5x21mm, and I have a doubt.
The image is quite good, but up close, observe what you see in the attached image. Do you suffer from the same effect ?. This happens focusing between 1m and 10m approx.
Can you get one circle? I'm afraid who are misaligned.

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Edu
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Old Thursday 26th November 2015, 20:16   #28
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Originally Posted by Edugar View Post
Hello,
I am new to the forum, a cordial greeting.
Yesterday I received my Pentax Papilio II 6.5x21mm, and I have a doubt.
The image is quite good, but up close, observe what you see in the attached image. Do you suffer from the same effect ?. This happens focusing between 1m and 10m approx.
Can you get one circle? I'm afraid who are misaligned.

Regards

Edu
That's entirely normal and due to parallax between the two different barrels. It can be altered, to an extent, by changing IPD (ie. the distance between eyepieces) but can't really be eliminated at close focusing distances. The central area of overlap provides the detailed views while the areas with no overlap between views are pretty much useful for peripheral vision only.

...Mike
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Old Thursday 26th November 2015, 20:46   #29
jring
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Originally Posted by mfunnell View Post
That's entirely normal and due to parallax between the two different barrels. It can be altered, to an extent, by changing IPD (ie. the distance between eyepieces) but can't really be eliminated at close focusing distances. The central area of overlap provides the detailed views while the areas with no overlap between views are pretty much useful for peripheral vision only.

...Mike
It's right that this is normal but it cannot be fixed by changing the IPD with the Papillo due to the fact that this only changes the distance between the eyepieces while leaving the objective distance alone.

In the papillo the distance of the objectives is changed automatically by focussing in order to be able to focus down to half a meter...

Joachim
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Old Thursday 26th November 2015, 20:59   #30
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it cannot be fixed by changing the IPD with the Papillo due to the fact that this only changes the distance between the eyepieces while leaving the objective distance alone.
Quite right, and I should have been clearer - adjusting the IPD can expand or contract the non-overlapping areas of the view "to an extent" by reducing or increasing the visible field of view but can't adjust the central overlapping area.

...Mike
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Old Thursday 26th November 2015, 21:07   #31
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Thank you very much everyone for your answers have been very useful. Now, I'm calmer
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