March EP Zoom's eye relief?

[jamesdmock]

I like the concept of the EP zoom, but I hear that the 40x-60x has extremely short eye relief. Has March addressed this problem, or is it a problem? Thanks, James Mock

 

[R.Morehouse]

James
I had the 36-55 and used it for both SR & LR and had no problem with the eye relief. The thing you have a bit of a learning curve with is the EPZ (eyepiece zoom ). When you go from 36-55 the eyepiece moves out and in quite a bit which changes your position on the gun. I set up my optimum position at 45x and really had zero problem using the scope, but it does take some getting used to.

Regards
Rick

 

[Bronsin]

I have one on my HV gun. All the scopes I use are fairly short on eye relief, and if there's a difference I can't really tell. Just yesterday Jack Neary asked me about that and he looked through it. He said it was fine, but that doesn't mean he's going to go and get one right away. I have the High Master version btw, so that might help it some.

 

[Fred Bohl]

James,
As Rick said, the rear element of the eyepiece moves from all the way in at 55x to max extension of 23mm at 36x. Also, eye relief is 70mm at 55x and 86mm at 36x. That works out to the optimum eye position moving from 70mm behind the ocular lens at 55x to 109mm behind the ocular lens at 36x or 39mm net change.

You do get used to using it though and it is worth having for the more stable Point of Aim with variable magnification.

 

[jamesdmock]

James,
As Rick said, the rear element of the eyepiece moves from all the way in at 55x to max extension of 23mm at 36x. Also, eye relief is 70mm at 55x and 86mm at 36x. That works out to the optimum eye position moving from 70mm behind the ocular lens at 55x to 109mm behind the ocular lens at 36x or 39mm net change.

You do get used to using it though and it is worth having for the more stable Point of Aim with variable magnification.

Isn't the maximum extension at 55x rather than 36x?

 

[Fred Bohl]

No, on my 36x-55x52 EPZ, 55x is with the rear element is all the way in and 36x is with the rear element all the way out. This is also as per the manual and power markings on the eyepiece.

 

[jamesdmock]

No, on my 36x-55x52 EPZ, 55x is with the rear element is all the way in and 36x is with the rear element all the way out. This is also as per the manual and power markings on the eyepiece.

Above, you stated that the eye relief was 70mm at 55x and 86mm at 36x. How can that be with the eye piece all the way in at 55 and all the way out at 36x?

 

[Fred Bohl]

Eye relief is measured from the surface of ocular lens to the optimum full field of view. The values quoted in my posts are the mid points from the specs in the manual. The actual values in the manual for eye relief are 82-91mm at 36x and 66-75mm at 55x from which I selected 70mm at 55x and 86mm at 36x for my posts.

Again, that works out to the optimum eye position moving from 70mm behind the ocular lens at 55x to 109mm behind the ocular lens at 36x or 39mm net change.

 

[Fred Bohl]

Again, that works out to the optimum eye position moving from 70mm behind the ocular lens at 55x to 109mm behind the ocular lens at 36x or 39mm net change.

To clarify, with the rear part of the eyepiece all the way in, the magnification is 55x and the optimum eye position is 70mm behind the rear eyepiece lens element. When the eyepiece is fully extended 23mm back, the magnification is 36x and the optimum eye position is 86mm behind the rear eyepiece lens element which is in total 109mm (23mm plus 86mm) from the most inward rear lens element location. Or the optimum eye position is 39mm (109mm minus 70mm) further back at 36x than at 55x magnification.

 

[butchlambert]

Above, you stated that the eye relief was 70mm at 55x and 86mm at 36x. How can that be with the eye piece all the way in at 55 and all the way out at 36x?

James, Listen to Fred. He knows of what he speaks.

 

[jamesdmock]

James, Listen to Fred. He knows of what he speaks.

Not in this case. The eye relief is longer at 36X than it is at 55x in that EP zoom scope.

 

[Fred Bohl]

To clarify, with the rear part of the eyepiece all the way in, the magnification is 55x and the optimum eye position is 70mm behind the rear eyepiece lens element. When the eyepiece is fully extended 23mm back, the magnification is 36x and the optimum eye position is 86mm behind the rear eyepiece lens element

That is what I said isn't it?

 

[jamesdmock]

That is what I said isn't it?

The scope has the eyepiece IN for 36x and extended for 55x. The eye relieve is LESS for 55x than it is for 36x. Magnification is increased by screwing the eye piece out away from the scope. The scope has LESS eye relief at 55x PERIOD.

 

[butchlambert]

The scope has the eyepiece IN for 36x and extended for 55x. The eye relieve is LESS for 55x than it is for 36x. Magnification is increased by screwing the eye piece out away from the scope. The scope has LESS eye relief at 55x PERIOD.

James, did you steal the "PERIOD" from the Gutfeld show?

 

[Bronsin]

That's strange. Mine is at 60x all the way in, and 40x extended.

 

[JimPag]

Wel

The scope has the eyepiece IN for 36x and extended for 55x. The eye relieve is LESS for 55x than it is for 36x. Magnification is increased by screwing the eye piece out away from the scope. The scope has LESS eye relief at 55x PERIOD.

I think your a little confused James. Both my 36-55's with the eyepiece screwed all the way in is at 55 and all the way out is 36X. Even the 40-60 that I use to own was the same way in is 60 screwed out was 40.

 

[jamesdmock]

James, did you steal the "PERIOD" from the Gutfeld show?

No, but I did read the March manual and found that I was RIGHT all along. I did not mean any disrespect for Fred, but he has the eye relief and power setting backward. PS- According to March, the 40x-60x EP scope has an eye relief of 2.8 to 3.5 inches at 40x and 2.32 to 2,83 inches at 60x. I guess that they have some folks there who know what they are talking about.

 

[butchlambert]

No, but I did read the March manual and found that I was RIGHT all along. I did not mean any disrespect for Fred, but he has the eye relief and power setting backward. PS- According to March, the 40x-60x EP scope has an eye relief of 2.8 to 3.5 inches at 40x and 2.32 to 2,83 inches at 60x. I guess that they have some folks there who know what they are talking about.

Quote from you James.
"The scope has the eyepiece IN for 36x and extended for 55x. Magnification is increased by screwing the eye piece out away from the scope"

 

[jamesdmock]

No, but I did read the March manual and found that I was RIGHT all along. I did not mean any disrespect for Fred, but he has the eye relief and power setting backward. PS- According to March, the 40x-60x EP scope has an eye relief of 2.8 to 3.5 inches at 40x and 2.32 to 2,83 inches at 60x. I guess that they have some folks there who know what they are talking about.

Thanks for the picture, but the eye relief numbers are from their manual. One can see that at the high powers, the scope is lacking eye relief. 2.32 to 2.83 at 60x is NOT sufficient eye relief. PS-That eye piece is a strange one in that when the scope is lengthened the magnification decreases and when shortened the magnification is increased. That is different from most telescopes. It must have some type of concave lens system, because a convex lens would magnify when lengthened. I apologize to any to which I have confused or offended.

 

[jamesdmock]

Wel

I think your a little confused James. Both my 36-55's with the eyepiece screwed all the way in is at 55 and all the way out is 36X. Even the 40-60 that I use to own was the same way in is 60 screwed out was 40.View attachment 1477428

Jim, that is very strange. The "normal" telescope will increase magnification when the rear lens is moved to increase the length. This scope is opposite, but the fact remains that the eye relief is VERY short at 55x (or 60x for newer models). Thank you for the clarification rather than sniping like Butch does.