Simplewaves
TPF Noob!
- Joined
- Feb 27, 2012
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- 6
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Hi I'm trying out the sigma f/2.8 DC EX 17-50mm before I buy it from a friend. I have a problem:
It's like it's stuk on 2.8. Cuase when I put the camera on say, f 11 it blows out the picture unless I keep the same shutterspeed I use when I'm at f/2.8. And the depth of field stays the same from f/2.8 to f/ 22.( super shallow)
I'm using a canon XSi. I've got the canon 18-55mm f/ 3.5-5.6 and this works fine.
Can someone please help me?
Have a nice day.
It's like it's stuk on 2.8. Cuase when I put the camera on say, f 11 it blows out the picture unless I keep the same shutterspeed I use when I'm at f/2.8. And the depth of field stays the same from f/2.8 to f/ 22.( super shallow)
I'm using a canon XSi. I've got the canon 18-55mm f/ 3.5-5.6 and this works fine.
Can someone please help me?
Have a nice day.