Reply to thread

Message

<blockquote data-quote="jwstl" data-source="post: 190862" data-attributes="member: 12977"><p>You are correct. I was thinking of the 35 1.4 for FX cameras, not the 30 1.4 for DX cameras. Before you worry too much about focus issues keep in mind that Sigma isn't the only manufacturer with these issues. Google Nikon or Canon lenses and focus issue and you'll get plenty of results. The point is that not every lens will or can be made to focus exactly right on all camera bodies. That could be because of issues with the body or the lens or both. Some bodies allow you to adjust for front or back focus and some don't. The beauty of the new Sigma lenses and dock is it allows you to adjust focus even if your camera doesn't have the focus fine tuning. Buy a Nikon or Tamron or Tokina to be used on one of those bodies and the focus is off a little and you either return the lens or live with it. I think this feature from Sigma is fantastic. And you can also update firmware via the dock. So if Sigma wants to improve performance for existing lenses they can do so via a firmware release and you can update the lens yourself. The dock is cheap and you only need one for all supported lenses of a particular mount. I love having this control via the dock and because of it I consider Sigma above all other third party lens manufactures.</p></blockquote><p></p>

[QUOTE="jwstl, post: 190862, member: 12977"] You are correct. I was thinking of the 35 1.4 for FX cameras, not the 30 1.4 for DX cameras. Before you worry too much about focus issues keep in mind that Sigma isn't the only manufacturer with these issues. Google Nikon or Canon lenses and focus issue and you'll get plenty of results. The point is that not every lens will or can be made to focus exactly right on all camera bodies. That could be because of issues with the body or the lens or both. Some bodies allow you to adjust for front or back focus and some don't. The beauty of the new Sigma lenses and dock is it allows you to adjust focus even if your camera doesn't have the focus fine tuning. Buy a Nikon or Tamron or Tokina to be used on one of those bodies and the focus is off a little and you either return the lens or live with it. I think this feature from Sigma is fantastic. And you can also update firmware via the dock. So if Sigma wants to improve performance for existing lenses they can do so via a firmware release and you can update the lens yourself. The dock is cheap and you only need one for all supported lenses of a particular mount. I love having this control via the dock and because of it I consider Sigma above all other third party lens manufactures. [/QUOTE]

Verification