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Mepro 21M Washout--Polarizer vs. LED Illuminator?

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calinb View Drop Down
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    Posted: November/17/2019 at 15:04
I have two Mepro M21M sights. Compared to several other fiber optic-powered sights that I own, the washout is minimal, but it's still a problem when shooting from a dark environs to a light one--like from inside a building or even a hunting blind to a much brighter outdoor target. Snowy landscapes are the worst, of course, and will completely washout my triangle reticles.

Can anyone here help me decide between the LED battery-powered solutions vs. the Mepro factory polarizer? Whereas the LEDs (M1BullPup REM 21 or Homeland Guns W.O.R. "cottage industry" products) solve the problem by adding light to the reticle, the polarizer appears to solve the problem by DECREASING the amount of light entertaining the objective (while the reticle light energy gathered by the fiber optic remains the same). Thus with the polarizer, the reticle appears brighter against the darkened background.

With the Mepro factory product, objective image brightness can be adjusted by changing the orientation of the polarizing filter lens pair--cross polars for darkest and parallel polars for brightest. The LED powered products can be adjusted with an LED brightness control (available for an extra charge, in the case of the W.O.R.).

I read an online review that said the polarizer was not good for uniformly dark environments (shooting in a dark room, for example). The reviewer did report that the entire polarizer can easily be unscrewed (and I think easily lost). However, I don't understand why one would be compelled to ever remove the polarizer, given that the polars can be simply adjusted to the parallel polars position to maximize the light striking the objective. Parallel polars don't absorb very much light!

The major appeal of the Mepro factory polarizer is the ruggegness and self-powered feature of the sight is not compromised. From what I see of both the LED options, they suffer on both these counts!

The LED illuminators cost roughly half what the Mepro polarizer and kill flash kit combo costs. Hopefully someone here has used both LED and polarization solutions and can weigh-in.

Thanks!

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Rancid Coolaid View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rancid Coolaid Quote  Post ReplyReply Direct Link To This Post Posted: November/18/2019 at 08:59
I haven't used the Meopta, but do use the Trijicon version of the same, and they have a place. Much like Trijicon's dual illum RMRs, they suffer exactly as you mention: from dark environment to bright environment, as from inside a building to outside, or - more what I encountered - in low light with a flashlight illuminating the target.
Trijicon had a similar polarizer and I used it often, but yes, taking it off means pretty much loosing it forever. That said, it does work well for addressing the issue - so long as you shoot with both eyes open. If you close your weak-side eye, it is bad, all bad.

I only use these when I absolutely have to. Most of my dot work has moved over to LED sources, which do indeed have batteries that die, but they do a much, much better job of providing a well defined and clearly visible aiming point. Swap the batteries every year or so and move on without worry. Also, backup irons are always there as an option. Or should be.

The polarizer works just fine and is a tool that can address the problem. If this rifle will never be called upon to defend life, I'd say go with the solution you most like. If it will be called upon under stress, go with the one you trust the most and have the greatest muscle memory operating.
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calinb View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote calinb Quote  Post ReplyReply Direct Link To This Post Posted: November/18/2019 at 10:26
Originally posted by Rancid Coolaid Rancid Coolaid wrote:

Most of my dot work has moved over to LED sources, which do indeed have batteries that die, but they do a much, much better job of providing a well defined and clearly visible aiming point.
Thanks so much for your insightful reply, RC. I now realize that this advantage of LEDs is hard to give up, vs. the small task of periodically replacing batteries and the additional failure points of circuits and, probably more significantly, electrical contacts.

Originally posted by Rancid Coolaid Rancid Coolaid wrote:

The polarizer works just fine and is a tool that can address the problem. If this rifle will never be called upon to defend life, I'd say go with the solution you most like. If it will be called upon under stress, go with the one you trust the most and have the greatest muscle memory operating.


Good advice! These band-aids aren't all that expensive so I think I'll order one of each of them and gain more experience with them. I shoot with both eyes open so the polarizer should work for me.
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