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Showing results 1 to 25 of 63
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Search: Posts Made By: Hans Weigum
Forum: Leica Friday 14th June 2019, 07:38
Replies: 16
Views: 1,070
Posted By Hans Weigum
Dear Alexis I appreciate you particular sense of...

Dear Alexis
I appreciate you particular sense of humour. Fully agreed, that your knot solution is not problematic here, provided additional measures got taken against loosening as you suggested...
Forum: Leica Tuesday 11th June 2019, 14:35
Replies: 16
Views: 1,070
Posted By Hans Weigum
Talking Leicas solution to fix the strap in the lugs by...

Leicas solution to fix the strap in the lugs by having their ends molten, only seems to be primitive, and the assumption, that a knot being better is wishful. Comparable research has shown, that ...
Forum: Spotting Scopes & tripod/heads Friday 15th March 2019, 07:42
Replies: 17
Views: 1,329
Posted By Hans Weigum
xxxxxxxxxxxxxxxxxxxxxxxx Hallo Alexis I...

xxxxxxxxxxxxxxxxxxxxxxxx

Hallo Alexis

I appreciate the effort you took to deal at least with some of the points I made.

I think there is less a difference in individual experience, as you say, ...
Forum: Spotting Scopes & tripod/heads Thursday 7th March 2019, 13:44
Replies: 17
Views: 1,329
Posted By Hans Weigum
Arca Swiss type Quick Release plates, basic inherent deficiencies

The concept behind the Arca-Swiss type of QR plates, both
original or derivatives, only seems to be simple enough, to allow for
completely ignoring the most basic rules of engineering. Is it just...
Forum: Others Sunday 23rd December 2018, 11:18
Replies: 10
Views: 1,493
Posted By Hans Weigum
Another observation instrument shown in a movie

https://www.youtube.com/watch?v=h3PoIoCD94E

A Safran - Vectronix JIM briefly to be seen ... after 4 min. 30 sec

HW
Forum: Binoculars Thursday 13th December 2018, 18:17
Replies: 32
Views: 1,695
Posted By Hans Weigum
The "open bridge" is not only a matter of...

The "open bridge" is not only a matter of ergonomics, styling or... just an innovation without further purpose than being different.

There might be a correlation between "open bridge" lay out and...
Forum: Binoculars Wednesday 12th December 2018, 08:53
Replies: 41
Views: 2,437
Posted By Hans Weigum
Thanks to all having contributed here to the...

Thanks to all having contributed here to the question regarding performance of boosters in front of the objective.


https://www.scopelist.com/BE10xT-Binocular-Enhancer-901793.aspx

Why did...
Forum: Binoculars Friday 7th December 2018, 06:58
Replies: 41
Views: 2,437
Posted By Hans Weigum
[QUOTE=henry link;3790557] ...The main optical...

[QUOTE=henry link;3790557]
...The main optical limitation with these things isn't usually the booster's image quality or brightness, but the poor image quality most binoculars show when their...
Forum: Tripod and Heads Saturday 22nd September 2018, 06:58
Replies: 19
Sticky: A Tripod Primer
Views: 2,150
Posted By Hans Weigum
[QUOTE=Tringa45;3765520]Hans, In the field I...

[QUOTE=Tringa45;3765520]Hans,

In the field I frequently see photographers with SLRs and long lenses without any support at all, and I suspect that the use of monopods by many journalistic...
Forum: Tripod and Heads Tuesday 18th September 2018, 09:18
Replies: 19
Sticky: A Tripod Primer
Views: 2,150
Posted By Hans Weigum
tripod stability

[QUOTE=Tringa45;3751936].....................................................................................................A frequent contributor on this forum has often stated that a stable tripod...
Forum: Binoculars Wednesday 1st August 2018, 10:37
Replies: 64
Views: 5,698
Posted By Hans Weigum
Hallo Henning Only superficially seeming...

Hallo Henning

Only superficially seeming primitive, but actually clever thought concept, of course with its handling...
Forum: Binoculars Monday 30th July 2018, 17:47
Replies: 64
Views: 5,698
Posted By Hans Weigum
You are correct, dear Henning, that my adapter...

You are correct, dear Henning, that my adapter grips the bino at its bending bar (obviously new binos still fitted so getting rare these days) by means of its V-shaped notch bottom and a wing...
Forum: Binoculars Monday 30th July 2018, 14:25
Replies: 64
Views: 5,698
Posted By Hans Weigum
…similar design, home...

…similar design, home made:

https://www.juelich-bonn.com/jForum/read.php?9,440898,440924#msg-440924

HW
Forum: Binoculars Thursday 12th July 2018, 08:25
Replies: 64
Views: 5,698
Posted By Hans Weigum
@Kevin Conville and Hauksen With all due respect...

@Kevin Conville and Hauksen

With all due respect to your effort, trying to create an alternative adapter, more reasonable than the manufacturers original:

Is it not a bit disproportionate to have...
Forum: Binoculars Friday 6th July 2018, 05:49
Replies: 14
Views: 2,088
Posted By Hans Weigum
A monopod, dear John, but only with a firm...

A monopod, dear John, but only with a firm (angularwise stable) connection between instrument and support can effectively reduce unwanted angular movements. The reduced vertical transversal travel...
Forum: Binoculars Wednesday 4th July 2018, 10:48
Replies: 14
Views: 2,088
Posted By Hans Weigum
Physics define movement of an object by straight...

Physics define movement of an object by straight travel along 3 perpendicular axes, the change of orientation by rotation around 3 perpendicular axes.

Internally stabilized observation optics only...
Forum: Others Thursday 30th November 2017, 06:46
Replies: 22
Views: 2,741
Posted By Hans Weigum
more about these Kern/Leicas:...

more about these Kern/Leicas:

http://www.birdforum.net/showthread.php?t=162961&page=9

IF Versions have a greyish anodized finish (Ematal), CF-Version have glossy black paint on the body, beneath...
Forum: Others Wednesday 29th November 2017, 12:16
Replies: 22
Views: 2,741
Posted By Hans Weigum
https://www.kern-aarau.ch/fileadmin/user_upload/Al...

https://www.kern-aarau.ch/fileadmin/user_upload/Aldo/Wehrtechnik/Armeefeldstecher_8x30_e.pdf

Notable with the Kern/Leica 8x30 besides its single hinge design and the particular collimation procedure...
Forum: Swarovski Wednesday 8th November 2017, 12:09
Replies: 32
Views: 3,339
Posted By Hans Weigum
Some time ago I started, but not yet completed a...

Some time ago I started, but not yet completed a systematic comparison of different means of "externally" modifying magnification of telescopes (including binoculars) by means of teleconverters...
Forum: Binoculars Saturday 28th January 2017, 09:12
Replies: 29
Views: 18,469
Posted By Hans Weigum
Walter Schön from München, told me some time ago,...

Walter Schön from München, told me some time ago, that he very successfully installed a specially selected pair of optimally matching teleconverters, originally designed for cameras on his Canon IS...
Forum: Opticron Saturday 17th December 2016, 13:15
Replies: 21
Views: 11,425
Posted By Hans Weigum
@Pete Gamby Pete, please... 1. ...confirm,...

@Pete Gamby

Pete, please...

1. ...confirm, that the Opticron UTA 2x is a fix focus and such of limited use as a separate telescope only.

2. ...let me know,

2.1.the exact thread size (if...
Forum: Binoculars Monday 12th December 2016, 18:09
Replies: 81
Views: 33,898
Posted By Hans Weigum
How a design purposely service (and...

How a design purposely service (and manufacturing) friendly heavily influences the burden of maintenance of a military binocular may be seen by the fact, that a group of only about 3 (!) well...
Forum: Binoculars Saturday 10th December 2016, 10:27
Replies: 81
Views: 33,898
Posted By Hans Weigum
[QUOTE=gulf1263; Steiners are disposable, many...

[QUOTE=gulf1263;
Steiners are disposable, many parts are glued together and they can't be repaired under most circumstances.
Modern military forces in many cases have found it more economical to...
Forum: Binoculars Wednesday 7th December 2016, 15:40
Replies: 81
Views: 33,898
Posted By Hans Weigum
@ mark22c 1. To my knowledge Sarajewo, where...

@ mark22c

1. To my knowledge Sarajewo, where ZRAK is located, never was part of Serbia.

2. Nowadays, when there are quite few purposely designed military binoculars in use, one of the design wise...
Forum: Binoculars Thursday 28th July 2016, 04:01
Replies: 2
Views: 947
Posted By Hans Weigum
Rayform

http://rayform.ch/

Hopefully this technology will later on serve to net shape more useful flat optical surfaces than just life style items like perfume bottles as shown so far. With thin and flat...
Showing results 1 to 25 of 63
 


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