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Photography Question 

Yonatan
 

Vignetting Problem with SIGMA lens 28-200 (part 2)


As Chuck, I had the same problem with the same lens (only using a Canon Rebel G camera), I found it to happen when I needed to use the flash.

What is the reason, and how can I avoid it? Does removing the hood solve it 100%?

Thank you in advance.


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October 10, 2001

 

doug Nelson
  You guys aren't stacking filters are you? Just kidding; I'm sure you're not. If it's not the hood (lens shade), maybe it's something internal going on in the lens. Rather imprecise, but I'm stumped, too.


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October 10, 2001

 

Donna R. Moratelli
  Hi, I would not recommend using the hood with the flash nor at short focal lengths. Both cause vingnetting. Check the owners manual that came with the lens and this may give you some additional information on when you should or should not use it. These manuals come in very handy at times. Good luck.


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October 10, 2001

 

doug Nelson
  Sounds like you nailed it for us, Donnarae. Thank you.

Until someone tells me my neo-Luddite views are unwelcome, I'll offer you one more. It is true that zooms are better than they were ten years ago. However, we can expect to take some kind of hit in optical quality with a zoom of such a huge range, in the form of distortion, reduced resolution, or some sort of problem such as this. Hold on to this zoom, as it's probably fine in the 50-200 range. If you're a wide angle fan, as I am, consider either prime lenses (one focal length, such as a 24, 28, or 35-mm) or a narrower range wide-angle zoom such as a 24-35. Canon's L-series is expensive, but is said to be so good that you'll never need to buy another wide angle.

Always use a hood with a wide-angle; you'll need it even more.


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October 11, 2001

 

Donna R. Moratelli
  Hi Doug, In my opinion, telephoto lenses are better than ever. They are lighter and more compact. I am a small lady and carrying my camera, bag and tripod, etc. are enough weight for me so who needs cumbersome lenses, too. Canon's L series IS the best that money can buy. I have a 300 IS L lens which is my favorite and compared to the 400 lenses years ago - this baby is a charm. It is ultra-fast and for quick action when you don't have a tripod in a dimly lit areas you can switch to the IS (Image Stabilizer). This is one of the main reasons that I purchased this. You can't compare these lenses with anything made years ago. The optical quality alone is pheonomial. All of the L series lenses are excellent. Some photographers sell these lenses on ebay at a discount price. I have met professional photographers in the past couple of years who have said they purchased their L series lens on ebay and it was good as new, so that is an alternative way to get something excellent without having to settle for less. Good luck.


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October 11, 2001

 

Robin Davies
  I'm not familiar with the camera or the lens, but there is one obvious possible cause of the problem. You said that the problem seems to happen when you use a flash. That's a pretty good indicator that spread of your flash isn't wide enough for a short focal length lens. If you can, try using a diffusing lens on the flash. My flash has a bumpy plastic bit that snaps over the face of the flash to accomplish this. The manual for my flash says that it needs a diffuser for 28mm lenses. Perhaps yours is the same.

Regards,


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October 17, 2001

 

doug Nelson
  A few lashes with a camera strap on me for not thinking of this in the first place, Robin. Thank you for bringing it to our attention. I've had it happen, too, not so much at 35mm, but for sure at 28mm.


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October 22, 2001

 
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