Having read through the whole eight pages of this, and understand the principals of light transmission.
Practical experience, my main pursuit is coyotes and I have no restrictions as to legal hunting times. If there is enough light to see the coyote coming into the call with my eyes I can kill him with my scoped rifle. It makes little difference if it is a 1-4x20, 1.5-6x40 or 2,5-10x40, having a reticle that doesn't get lost in the background is the biggest factor for me. A dim red dot, Heavy duplex or German #4 work best for me in the low light for me.
I would likely lose/miss more called coyotes with a 6x42 or 8x56 due to lack of FOV than from lack of transmitted light in my scopes of choice..
Last edited by erich; 08/29/15.
