Which color ACOG reticle?

SKILCZ

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What are the advantages / disadvantages of the red, green, and amber reticles? I'm trying to decide which one to get. Which is best for daylight use? I imagine they're all similar for low light use.

Thanks!
 
I can't speak for amber, but red works fine, even at night. I have a switchable red/green optic, and green leaves me with a dead-center blind spot (mild, but very noticeable) on any of 7 brightness settings, during the day. I can't imagine what it would do at night...

http://www.workwithcolor.com/color-luminance-2233.htm (ignore the words and look at the pretty pictures, they're all that are needed here)

Links above shows a basic representation of perceived brightness of different colors...

http://hyperphysics.phy-astr.gsu.edu/hbase/vision/rodcone.html#c3b

The above link explains (lightly) why blue is a bad choice...

Add the two up, and red is a fairly standout choice for a reticle, barring extenuating circumstances making amber a better choice. Blue and Purple would effect vision less, due to lower perceived brightness, but blue light is typically blurry(er) for most people, and purple contains blue.
 
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