[pentaxuser]

I am a pro... I haven't owned a "wide" 50mm for my Nikon kit for some 10 years.

PS don't even think about using it without a hood... and please don't put a protective filter (skylight etc) over these highly corrected lenses...

Isn't a 50mm on a 35mm camera very slightly telephoto, not wide or does wide in this context mean something else?

What is the issue with a protective filter exactly and does this apply to other filters such as yellow etc?

Thanks

pentaxuser