I need to buy a protective filters for my 50mm H series lenses and my Aptus 22 back. In the UV haze filters, there's several options and I can't figure out the difference. Can someone help me out? Here's my choices on the B&H website:
B+W 77mm UV Haze 010 Glass Filter - $49
77mm UV Haze 010 Glass Filter Extra Wide (95mm Front) - $94
77mm UV Haze 010 (MRC) Multi-Resistant Coating Glass Filter (Extra Wide) - $139
77mm UV Haze 010 (MRC) Multi-Resistant Coating F-Pro Glass Filter - $94
I'd like to pay the least amount without sacrificing optical quality. Are the coatings for scratch resistance or for optical performance? What's the "extra wide" feature?
Thanks,
John