Canon 100-400 Ghosting problems

[Steve Large]

Hello again everyone,
Thanks for your comments and interesting information on this thread. Jay and Roger, the filter used was an OPTEX UV filter.

It's funny, when I started out in photography one of the first things the guy behind the counter advised was to buy a UV or neutral density filter to protect the front of the lens. It sounded logical so I had just carried over that practice through the years to every new lens that I bought. I wonder how many images I could have had much sharper as a result of not having those filters on?

Steve

[John Chardine]

Hello again everyone,
Thanks for your comments and interesting information on this thread. Jay and Roger, the filter used was an OPTEX UV filter.

It's funny, when I started out in photography one of the first things the guy behind the counter advised was to buy a UV or neutral density filter to protect the front of the lens. It sounded logical so I had just carried over that practice through the years to every new lens that I bought. I wonder how many images I could have had much sharper as a result of not having those filters on?

Steve

Many photo stores up their margins by selling you a filter for $100 that cost about $5 to make.