[Hapo]

...I bought a used lens from Adorama just over 30 day ago and was having a fine time with it until I tried to shoot a cloud scape  today...

...I could not get the lens to focus on the sky...it does not seem able to focus to infinity...

...even when I tried manual focus it keeps hunting and will not focus...

...other, closer subjects seem to be fine...

...I wish I had tried infinity before...I have been shooting in the woods mostly...