This guy is from Canmore. I think I have his calendar here in Kuwait.
In this age of digital photography, camera filters have mostly gone the way of vinyl records. There simply is no need for warming or cooling filters when light temperature can be altered with in-camera white balance settings or in post-production. For b w shooters, the red, orange or yellow filters commonly used in film days are no longer needed as most digital photographers shoot in color and then use photo software to convert to b w emphasizing tones in any way they wish – see Great Black-n-White Photos From Colour Film. Even the venerable grad filter is often cast aside by digital shooters, many preferring to blend shadow and highlight exposures of the same scene into one photo using post-production software. So why do we need camera filters anymore?