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Giant scopes? (60mm obj and more) who's tried em?

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dsr View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dsr Quote  Post ReplyReply Direct Link To This Post Posted: October/31/2010 at 20:45
Originally posted by koshkin koshkin wrote:

So, what is your idea for a "benchrest only" scope?

ILya

Ok, since the subject has been broached (flights of fancy) how about a question for Koshkin.  Does the physics of spotting scopes allow the design of an eyepiece with long eye relief that would contain a fixed reticle (all scope adjustments would be external).  Of all the rifle scopes that I have looked through (ranging from Zeiss Victory to barging basement scopes) none are as good as a quality spotting scope (ie Leica or Zeiss Diascope).  The Zeiss Victory Diavari rifles scopes comes very close or is as good as a good quality spotting scope but I have never been able to have both together for side by side comparison.

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dsr
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Magnumdood Quote  Post ReplyReply Direct Link To This Post Posted: October/31/2010 at 22:59

I’m running a Hensoldt 6-24x72 on my 30-378 Improved.  To put it simply; WOW.   I hog & coyote hunt at night, and to improve on this you’d need NV on a completely overcast night.  I don’t think NV will outclass this scope if there is ANY ambient light.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote dhdoyle Quote  Post ReplyReply Direct Link To This Post Posted: November/01/2010 at 17:41
Originally posted by spystyle spystyle wrote:


I'd like to see a benchrest scope designed that uses a mirror inside and has a Z shape, kinda like this but up-side-down :

The army has used this idea for their sniper night sights, but that's the only place I've seen it used. This is the AN/PVS-10:

I'm not sure how many folks would appreciate the weight of a spotting scope on top of their rifle.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote spystyle Quote  Post ReplyReply Direct Link To This Post Posted: November/01/2010 at 18:21
I want one of those :)

or a copy :)

But I think that style of scope would work well with the bench-rest shooters, especially ones with rail gun rests.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote koshkin Quote  Post ReplyReply Direct Link To This Post Posted: November/01/2010 at 18:30
Originally posted by dsr dsr wrote:

Originally posted by koshkin koshkin wrote:

So, what is your idea for a "benchrest only" scope?

ILya

Ok, since the subject has been broached (flights of fancy) how about a question for Koshkin.  Does the physics of spotting scopes allow the design of an eyepiece with long eye relief that would contain a fixed reticle (all scope adjustments would be external).  Of all the rifle scopes that I have looked through (ranging from Zeiss Victory to barging basement scopes) none are as good as a quality spotting scope (ie Leica or Zeiss Diascope).  The Zeiss Victory Diavari rifles scopes comes very close or is as good as a good quality spotting scope but I have never been able to have both together for side by side comparison.

Thanks,
dsr

There is nothing particularly different about the physics of a spotting scope compared to that of a riflescope.  However, one of the reasons you see better through a spotter, than through a riflescope is exactly the thing you are trying to eliminate: short eyerelief.

With the eye so close to the eyepiece, it occupies a much greater solid angle.  Hence, other light does not enter the eye and your brain can get a lot more detail from the image.

ILya
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dhdoyle Quote  Post ReplyReply Direct Link To This Post Posted: November/01/2010 at 21:55
Originally posted by koshkin koshkin wrote:

With the eye so close to the eyepiece, it occupies a much greater solid angle.


ILya,
Thankyew! Your description is exactly correct, of course. The engineer in me loves it when you talk nasty!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote spystyle Quote  Post ReplyReply Direct Link To This Post Posted: November/02/2010 at 06:34
The Russians have those rubber eye pieces to occupy the space of the eye relief. Remember those ?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dsr Quote  Post ReplyReply Direct Link To This Post Posted: November/02/2010 at 08:52

Koshkin,

Thanks, I understand the solid angle (steradian), now that you point it out and never considered that I was somewhat comparing apples and oranges and ended up being too critical on the rifle scopes performances. 

I would like to rephrase the question about the general physics of spotting scopes (scopes that are in production), is possible to make an eyepiece with long eye relief that contains a reticle? If it is possible would the reticle be first or second plane focused.  I understand that without details it might be impossible to say if it is possible and your explanation in the previous post points out the disadvantages of such a setup.  Now I am just curious.

Thanks,

dsr
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dsr Quote  Post ReplyReply Direct Link To This Post Posted: November/02/2010 at 09:11
Originally posted by Magnumdood Magnumdood wrote:

I’m running a Hensoldt 6-24x72 on my 30-378 Improved.  To put it simply; WOW.   I hog & coyote hunt at night, and to improve on this you’d need NV on a completely overcast night.  I don’t think NV will outclass this scope if there is ANY ambient light.

 
Magnumdood,
 

That is the scope that that I am considering for my target rifle (hoping to get a small advantage on over cast days).  It is the most impressive scope that I have been able to look through (two short test viewing sessions) and it is reassuring to hear the scope lives up to its reputation.

Just one question, are you using any type of muzzle break?
 

Good hunting,

dsr
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Kickboxer Quote  Post ReplyReply Direct Link To This Post Posted: November/02/2010 at 12:59
Originally posted by koshkin koshkin wrote:

Originally posted by Urimaginaryfrnd Urimaginaryfrnd wrote:

Brick HitI looked for slap but this seemed to work too. Big Grin
 
 
 
I'm just wondering when we are going to see video camera electronic ultra high zoom capable scopes with a memory chip to record your hunt. I mean seriously look what happened to the great glass traditional film cameras POOF - worthless over night. Some of these companies like Nikon are well positioned to put out one of these.  I saw some chinese military photos where they had a monitor mounted on the rifle and the viewer on the helment.  Pretty sure we have something very hush hush too but if we dont we are way behind.

How about Elcan Digital Hunter?

I have been trying to "review" one of those for quite some time... Still waiting.  
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rich Coyle Quote  Post ReplyReply Direct Link To This Post Posted: November/04/2010 at 20:44
Originally posted by spystyle spystyle wrote:

Well said, I'm sure good small glass beats big cheap glass.

However there must be a point that crazy large exceeds even good glass, like a 400mm objective :) I'd like to try that!

Oh we'll never know :(

Anyway, happy shooting :)
Craig
 
One of my early posts at this site showed the difference in ability to read the words "THIS SIDE OUT" on my pump house 127 yards away from the porch.  Just in case you missed it I'll give the condenced version.  I compared my Minox 13X56, 4 1/2-30X50, and 12-42X56 NightForce with all set on 13X.  I was comparing them after sunset.  When I could no longer read the words, but had to try to make out letters, I called the time.  Minox quit at 6:42.  Bushnell quit at 6:44 and the NighghtForce quit at 7PM!  When I turned the power ring on the Bushnell up to 18X I could read the words again.  During the day no one can tell any difference between the Busnell and the NightForce.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ed Connelly Quote  Post ReplyReply Direct Link To This Post Posted: November/04/2010 at 21:30
Originally posted by Kickboxer Kickboxer wrote:

I had an ATN 6-18x65 for a number of years.  I REALLY liked it, but it was on a rifle my wife took away from me  uses when I let her.  She needed a ligher scope, so I put a Zeiss Diavari 2.5-10x42 on it.  A word about the ATN, I went through 6 (SIX) before I got one that worked right.  Once I got that one, it was great in low light, BDC was as good as any I have used (to 500yds), illuminated reticle was great, rangefinding was dead on.  I don't recommend ATN, unless you are willing to spend several months going back and forth to get one that works as advertised.  It went through several hundred rounds on the German Voere Titan II 30-06 and performed very well.  It is HEAVY, but mounted on the Monte Carlo style stock of the Voere, I had no problems and did not need a "cheekpiece".  Neither did my wife.  She shot it more than I did, but only because I let her.  
 
 
 
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