Quote Originally Posted by thimblehouse View Post
Have used a variable appature rear sight for somtime. Mine does not have the filters, did try one but found little use for the filters so went back. Because the light differs from target to target. I can use the iris to compensate and often turn a fuzzy target clear.
I find that the yellow filter works great in low light levels ,making the target appear brighter - works well for me - but must admit the other filters don't really add much,although I haven't yet shot in bright sunlight,so the grey/blue filters might come in handy in this situation.