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Canon 5D Mk II – Sigma lenses with black rings?
Hello Friends!
I’ve been shooting video on the 5D Mk II with the Canon EF 50mm F1.8 lens and I have had great success with it.
I just bought a Sigma 17-70mm F2.8-4.5 Macro zoom lens and a Sigma 18-200mm F3.5-6.3 zoom lens — they mount on the 5D body just fine, but there are these black rings that appear around the image and I have no idea what they are. This occurs with both of the Sigma lenses. There is an image below.
Does this have something to do with the full-HD sensor on the 5D vs. crop-sensor lenses? I don’t really understand why there should be a difference if that is the case.
Canon EOS Mark II
Shutter Speed 1/40
Aperture 1/4
ISO 320
Focal Length 28mmShot with the Sigma 18-200mm F3.5-6.3 DC
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2 Replies
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Yes this has everything to do with a crop sensor lens. The Circle of Confusion is too small to project onto a full size sensor. You are seeing the cropped Circle of Confusion.
Warren Eig
O 310-470-0905email: warren@babyboompictures.com
website: https://www.babyboompictures.comREEL: https://www.babyboompictures.com/BabyBoomPictures/Reels.html
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In the future you’ll need to verify that the lens your buying will properly cover a full-frame sensor. The lens you bought is appropriate for a crop-sensor camera – like on a 60D, 70D, 7D, t4i, etc. you won’t have any problems. In post you could scale up the footage to get rid of the black ring.
Or there’s the reshoot filter! 😀
Ryan Holmes
http://www.ryanholmes.me
@CutColorPost
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