The lens cannot focus to infinity - Canon Normal EF 50mm f/1.4 USM Autofocus Lens

Remove the lens from the camera, set MF on the lens, try gently to free it by hand. If this works, clean the contacts on the lens and camera body - if not, it needs repair.

Hi.
There is a problem inside your lens. It can be a flexible PCB (printed circuit board) or screw out of possition, so the focus moving parts can´t complete the range.
If the infinity focus gets at 3ft, there are also some optical group loose. That is the reason infinity position is located closer than it must be.
Send it to a Sigma Service.

No, and no.

The lens will not work on a Nikon camera.

Nikon cameras are deeper than Canon cameras. Even if a Canon lens fit onto a Nikon body, it would not focus at infinity. In order to enable a Canon lens to focus at infinity on a Nikon body, a lens adapter would have to have a negative thickness.

Nikon bodies are thicker than Olympus bodies, thus while Nikon lenses can be made to focus to infinity when mounted onto an Olympus body, an Olympus lens will not focus to infinity were it mounted onto a Nikon body. Thus, no one makes an adapter to fit an Olympus lens onto a Nikon body.

Try this first.

Set your lens focus to infinity and focus your screen at a far away object (like a distant lampost). If it,s not in focus, then you have a misaligned mirror. Adjust your mirror so that a infinity setting, the split-screen image merge well to form a well focussed image. Hope that helps.

ahaha.... never mind. I was dinking around with it again and turns out, infinity focus only works if facial recognition is on... why, i don't know.

Hey redbarnz,
If the lens won't focus to infinity then there is probably something physically wrong with the lens. With the dominance of digital equipment you can find fantastic deals on manual focus 35 mm lenses. I would look at Canon manual focus lenses rather than sticking with vivitar. I hope this helps!

Sincerely,
Allan
Go Ahead. Use Us.

That is the focusing ring. I'm guessing your camera is set to focus automatically (Little switch on the side of the lens should have settings for either AF or MF, or something similar.)

If its on AF, you don't need to adjust the focus ring.
However, if you have problems with the AF (sometimes it has trouble, especially in low light) you can switch it to MF, and focus manually by changing the ring.

As a general guideline, the more you twist to towards macro, it focuses closer and closer, and infinity futher away (if you're taking a shot of the moon, you want it on infinity)

Wideangle: 0.6m to infinity (from lens front) / Telephoto: 2.0m to infinity (from lens front) Wideangle: 0.685m to infinity (from CCD) / Telephoto: 2.085m to infinity (from CCD)

The focus information is available at: http://www.ssdonline.com/... ...m?Productid=B111021F&affid=A01&urlid=B111021F