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Kruger Caldera ED 10x42???

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Category: Other Optics
Forum Name: Binoculars
Forum Description: Anything that requires two eyes to look through it
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Topic: Kruger Caldera ED 10x42???
Posted By: ahiaring
Subject: Kruger Caldera ED 10x42???
Date Posted: March/07/2011 at 09:04

After reading reviews, and briefly looking at these at the SHOT show, I am/very impressed so far. I have Zen Ray Binos and for the brief time I got to look through the Krugers they seemed equal, at least to my eye. Plus I really like the design layout.

Just curious if anyone else had any reviews or experiences with these bins?



Replies:
Posted By: ahiaring
Date Posted: March/08/2011 at 12:13
Ordered a pair of 10X42's today. Will do a report against  the ZR ed 2 and vortex razor and let everyone know what I find out.


Posted By: spf2
Date Posted: March/08/2011 at 12:47
watch out for the rolling ball effect on this binoculars.


Posted By: ahiaring
Date Posted: March/08/2011 at 13:54
what do you mean by rolling ball efect?
 
I always been a guy who was willing to give opportunity to the new guys on the block as long as I could afford it and thought it was a good product/company. I'm not one of those guys who claims 400 dollar binos are better than 2k optics, but do think that for the deer, elk, moose, and antelope I chase, these high end mid price binos seem to suit me quite well


Posted By: spf2
Date Posted: March/08/2011 at 14:46
Originally posted by ahiaring ahiaring wrote:

what do you mean by rolling ball efect?
 
I always been a guy who was willing to give opportunity to the new guys on the block as long as I could afford it and thought it was a good product/company. I'm not one of those guys who claims 400 dollar binos are better than 2k optics, but do think that for the deer, elk, moose, and antelope I chase, these high end mid price binos seem to suit me quite well
When I tried to pan this bino horizontally,  I got seasick like feeling. Upon further research, I realized that's the infamous rolling ball effect many people have been talking about. It may not affect you. But it's on my checklist to inspect before I buy the next pair of any binoculars


Posted By: ahiaring
Date Posted: March/08/2011 at 15:00
What was your impressions of the binocular without panning? Image quality, brightness, ect?


Posted By: Klamath
Date Posted: March/08/2011 at 18:14
Originally posted by ahiaring ahiaring wrote:

what do you mean by rolling ball efect?
 
Magnification magnifies all things in an image, including movement.    This tends to come into play when there is a wide field and very sharp edges.  What happens is that as the binocular is panning (moving) over a chunk of scenery, the image on one side seems to speed up as it comes into view, while on the other side the image seems to speed up as it leaves the view.  This imparts a definite rolling effect and since the fov is round, the term rolling ball.  It affects different users differently and the effect is largely due to the amount of distortion present in your natural vision.  That and binocular manufacturers typically purposely design in some pincushion distortion, which is the primary component of the soft, or fuzzy edge you usually see at the very edge of the field.  What this distortion does is hide or break up the rolling ball effect.  It is a deliberate design feature, not a defect, although it is typically too hard to get the whole field flat anyway.  So if you are going to be affected by rolling ball, you will find out pretty fast.
 
One recent binocular that has problems for some in the rolling ball effect is the new Swarovision EL.  This is largely a function of no pincushion distortion and a delibebrately designed sharp edge and flat field.
 
I've had my eye on the Kreuger for awhile and I'm interested to see what you find.


-------------
Steve
"Everything that can be counted does not necessarily count; everything that counts cannot necessarily be counted". William Bruce Cameron



Posted By: Bird Watcher
Date Posted: March/09/2011 at 11:49
http://www.holgermerlitz.de/globe/distortion.html - http://www.holgermerlitz.de/globe/distortion.html



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