Visit the SWFA.com site to check out our current specials. |
wearing glasses and rifle scopes |
Post Reply |
Author | |
mk1
Optics GrassHopper Joined: February/21/2013 Location: UK Status: Offline Points: 4 |
Post Options
Thanks(0)
Posted: February/21/2013 at 14:41 |
Hi, i wear glasses and i have been trying to understand why i can not see the target pin sharp through a Zeiss Duralyt 3-12x50 ir scope but i can through a less expensive Redfield Revolution 4-12x40?
I seem to be forever trying to adjust the eyepiece on the Zeiss, in comparison it doesn't seem to have very good depth of field either, even at infinity. I have found this is to be the same in three identical Ziess scopes. The Redfield has better edge to edge clarity too.
I at first doubted my glasses but then i used them on both scopes side by side. Has anyone experienced this or can suggest a solution please, i would like to continue with the Zeiss?
|
|
3_tens
Optics Jedi Master Joined: January/08/2007 Location: Oklahoma Status: Offline Points: 7853 |
Post Options
Thanks(0)
|
Depending on the corrections made by the prescription it can have an effect on the view. I have to take my glasses off to see well with a scope. My progressive cut lens plays havoc when trying to use them looking thru the scope. My best guess the difference between the scopes you are using is in the lens design and eye relief. The glasses are adversely altering the light path before it reaches the focal point for the eye.
|
|
Folks ain't got a sense of humor no more. They don't laugh they just get sore.
Need to follow the rules. Just hard to determine which set of rules to follow Now the rules have changed again. |
|
Sparky
Optics Master Extraordinaire Joined: July/15/2007 Location: SD Status: Offline Points: 4569 |
Post Options
Thanks(0)
|
I am not positive, but I think that the eyepiece adjustment is for focusing the reticle and not the image. And once you have focused the reticle you do not need to adjust it again. |
|
mk1
Optics GrassHopper Joined: February/21/2013 Location: UK Status: Offline Points: 4 |
Post Options
Thanks(0)
|
Sparky, that is what i believe too. I don't need the touch the eyepiece on the Redfield scope but in the battle to get the Zeiss pin sharp i am trying anything. With the Redfield i can look at something at say 100yards and then look at something at 150yards, without touching the scope and all is pin sharp but i find i'm having to tweek the Zeiss as i find it's depth of field a problem.
|
|
Dogger
Optics Jedi Master Joined: January/02/2007 Location: Ontario, Canada Status: Offline Points: 8906 |
Post Options
Thanks(0)
|
Excerpt from What Is Parallax Anyway? from the FAQ section at the main menu
HOW TO SET UP A SCOPE!
This is the only way to do it... First, screw the eyepiece out (CCW) all the way, until it stops. If you wear glasses, put them on. Hold the scope up and look OVER the scope at the sky, and relax your eyes. Then move the scope in front of your eye. The reticle should look fuzzy Turn the eyepiece in 1/2 turn, and do the same thing again. You will have to do for a while before the reticle starts to look better. When you start getting close, then turn the eyepiece 1/4 turn each time. Do this until the reticle is fully sharp and fully BLACK immediately when you look through the scope. Than back off one turn and do it again to make sure you are in the same place. Then LOCK the ring on the eyepiece, and leave it alone forever! |
|
God save the Empire!
|
|
jonoMT
Optics Master Extraordinaire Joined: November/13/2008 Location: Montana Status: Offline Points: 4853 |
Post Options
Thanks(0)
|
A place I have overlooked, despite coming here all the time (or maybe because of it). Thanks for the reminder, Dogger.
|
|
Reaction time is a factor...
|
|
jselsor
Optics Journeyman Joined: August/01/2011 Location: MO Status: Offline Points: 328 |
Post Options
Thanks(0)
|
Good beginner info here often over looked
|
|
Dont take yourself to seriously
|
|
cheaptrick
MODERATOR Joined: September/27/2004 Location: South Carolina Status: Offline Points: 20844 |
Post Options
Thanks(0)
|
Fundamentals cannot be overstated. Great post, Mr. Craig. I often wonder how many "scope issues" I read here and abroad, are the result of operator error.
|
|
If at first you don't secede...try..try again.
|
|
JGRaider
Optics Master Joined: February/06/2008 Status: Offline Points: 1540 |
Post Options
Thanks(0)
|
Good post and I agree. I do like to take it a step farther though. After getting the reticle sharp, as you guys said, you can also adjust it to get the target (my case 200 yards) sharply focused too, while keeping the reticle sharp.
|
|
stickbow46
Optics Master Extraordinaire Joined: January/07/2009 Location: Benton, Pa Status: Offline Points: 4678 |
Post Options
Thanks(0)
|
Good post Dogger.Myself I wear Bi-Focals so it's easier to not wear my glasses when I shoot.My glasses also fog up when I'm hunting & I get ready to take a shot, also happens when shooting my long bow!
|
|
Pearls of Wisdom are Heard not Spoken
|
|
bugsNbows
Optics God bowsNbugs Joined: March/10/2008 Location: North Georgia Status: Offline Points: 11200 |
Post Options
Thanks(0)
|
Great explanation. Also, keep in mind, the "Euro style" type eyepieces (think Conquest) have no lock ring and don't rely on ultra fine theads (think Leupold) so their turn to focus distance is much shorter. |
|
If we're not suppose to eat animals...how come they're made of meat?
Anomymous |
|
Sparky
Optics Master Extraordinaire Joined: July/15/2007 Location: SD Status: Offline Points: 4569 |
Post Options
Thanks(0)
|
Very good info. But I would add one thing if the scope has either and AO or a side focus to set either to infinity before adjusting the reticle focus. |
|
stickbow46
Optics Master Extraordinaire Joined: January/07/2009 Location: Benton, Pa Status: Offline Points: 4678 |
Post Options
Thanks(0)
|
Also set the power to max when trying to get the best in focus reticle.
|
|
Pearls of Wisdom are Heard not Spoken
|
|
Tip69
Optics Master Extraordinaire Tip Stick Joined: September/27/2005 Location: Nebraska Status: Offline Points: 4155 |
Post Options
Thanks(0)
|
I have a different pair I wear when looking thru scopes. not bifocals and the lens is bigger, so that when I tilt my head/chin down on the stock.. I'm still looking thru the lens of my glasses... and not over the top of them. Or even worse, having the top of my glasses right at eye level.. so I'm seeing thru the lens and over them at same time!
I've noticed that the longer I look thru a scope.. like at the range ... both my eyes get tired and I have to get up and walk around a bit. I think glasses and keeping my left eye shut tires them out quicker. |
|
take em!
|
|
powderburn
Optics Journeyman Joined: April/09/2010 Status: Offline Points: 345 |
Post Options
Thanks(0)
|
Several years ago before I got my glasses my long time hunting buddy and I use to rag on each other about not getting the crosshairs aligned on each of our rifles. He seemed to always think mine were canted to the left and his always looked canted to the right to my eye. Upon finally succumbing to glasses I looked through one of my scopes and wow they were canted and when I looked thru his they were straight. Took off my glasses and things went back to the way they were before. I finally figured out that the curvature of the lens in our glasses was the culprit since I tend to actually look at the inside quadrant of my glasses rather than the center when shooting a rifle due to my head position on the stock.
|
|
mk1
Optics GrassHopper Joined: February/21/2013 Location: UK Status: Offline Points: 4 |
Post Options
Thanks(0)
|
So, Powderburn, what did you do, did you simply re sight your scope to suit your new glasses or did you get a pair specially made or something?
|
|
anweis
Optics Master Joined: January/29/2006 Status: Offline Points: 1148 |
Post Options
Thanks(0)
|
You must carefully and patiently set a target with bars and shapes, or a newspaper, at 100 yards. After that, set the zoom on the scope at mid-power and start adjusting the diopter ring of the scope until you see both the image and the reticle very well. I wear glasses, i experience the same on every new scope i purchase, or any other optic for that matter, until i play with the diopter adjustment.
I've met just the other day a lady with a pair of binoculars, same problem. It's about adjusting the diopter.
|
|
Post Reply | |
Tweet
|
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |