I had big problems with my Sigma and 750d until I read the following
http://www.the-digital-picture.com/News/News-Post.aspx?News=15624
Really has made the difference although I can't say why....There is a bit more background on the sigma thread.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.