[Wolf_Rider]

gunsight is different, that is zoom, but no, never really used it

yes colour vision defects.... even without them, the further away the more the colouring merges together and have to be careful about the "red/ green" colour thing though. It isn't "blind" as such, it is the retention of the colour last seen being overlayed (lagged) on the colour viewed.

(red/ green/ white for the lantern test)

flash up red/ white, then flash up red/ green... red/ white will still be seen (using peripheral vision can get around it depending on how affected the person is)