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11/24/2017 4:44:23 PM
11/22/2017 10:05:29 PM
Posted: 8/1/2004 3:58:27 PM EST
Hi all,

Any thoughts on pro's & con's between the two? I'm thinking about a TA31 or TA11, either donut or chevron for a std A2 config (20" & charging handle).

Thanks,
P
Link Posted: 8/1/2004 4:59:58 PM EST
You really can't go wrong with either one, although myself, I prefer the TA31
Link Posted: 8/1/2004 5:08:02 PM EST
see my pics here TA31 &TA11
Link Posted: 8/2/2004 4:27:01 AM EST
[Last Edit: 8/2/2004 4:27:35 AM EST by Bartholomew_Roberts]
If you are shooting nose to charging handle on an A2, you don't get much out of the extra eye relief of the TA11.
Link Posted: 8/2/2004 6:56:59 AM EST
I use a TA11 on my AR10 because of the greater recoil from the .308. For any AR15 though, a TA31 makes more sense. Smaller, lighter, more magnification, larger field of view, and cheaper.
Link Posted: 8/2/2004 7:07:48 AM EST
Link Posted: 8/2/2004 9:11:57 AM EST
The TA11 is also a little brigher due to the optical arrangement.

-z
Link Posted: 8/2/2004 1:44:33 PM EST
How's the TA11 brighter?
Link Posted: 8/2/2004 4:17:22 PM EST
The TA11 has a larger exit pupil than the TA31. Hence it's brighter.

Another way to think about it is this: the TA11 has the same objective lens diameter, but less magnification, so it will be brighter. Two ways of saying the same thing.

-z

Link Posted: 8/3/2004 4:07:33 AM EST

Originally Posted By Zak-Smith:
The TA11 has a larger exit pupil than the TA31. Hence it's brighter.



Both scopes have exit pupils that are larger than the ability of the human eye to dilate, so even though this is technically correct, I doubt you could tell the difference. I have thought that the TA11 reticle was better lit though and wondered if the extra fiber optic tube played a role in that.
Link Posted: 8/3/2004 4:38:24 AM EST
[Last Edit: 8/3/2004 4:39:46 AM EST by Duffy]
I was gonna say something like that, someone (maybe it was Bart then too) pointed out that the slightly larger objective lens would not make any difference to naked eyes (unless you got an eye transplant from an eagle or hawk).
My personal experience bears this out as well, I can't discern much difference between the two, to me it's akin to the display cards performance differences of 110 frames per second vs. 120 frames per second, the difference may be there but it sure isn't meaningful to the user.
Link Posted: 8/3/2004 5:30:48 AM EST
I was stuck between the 11 and 31 for a long time. I think I made a good choice with the 11 since the further eye releif is really needed with a full length stock, body armor, and plate combo to get the quickes and best shots off in different shooting positions.
Link Posted: 8/3/2004 5:32:42 AM EST
I was stuck between the 11 and 31 for a long time. I think I made a good choice with the 11 since the further eye releif is really needed with a full length stock, body armor, and plate combo to get the quickes and best shots off in different shooting positions.
Link Posted: 8/3/2004 6:54:07 AM EST
In that case, 3.5x is almost 4x, and 1.5" is almost 2.4". I guess there's no difference between the TA11 and TA31 after all.

Try out both. The TA11 will appear brighter.

-z
Link Posted: 8/4/2004 3:25:49 PM EST
Thanks for all the feedback - I'm on a hunt for either one now!
Link Posted: 8/4/2004 4:07:46 PM EST
I'm selling my TA11 donut, drop me a line if interested, for $900.
Link Posted: 8/5/2004 2:40:36 PM EST
GAAA! I just bought a TA31 before I read this post! Thanks for the tip - I'd be surprised if that doesn't dissapear quickly!

Link Posted: 8/5/2004 3:53:57 PM EST
Nah, I never put it up for sale at EE or anywhere, I just mention it now and then, maybe someday I'll get serious in selling it
Link Posted: 8/23/2004 10:25:13 PM EST

Originally Posted By Zak-Smith:
Try out both. The TA11 will appear brighter.
-z



Try them in dim light, like dusk. Trying them back to back in the sun, you can't tell the difference.
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