Round black shadow on the bottom

[DzRbenson]

Question all.

My fiance has been taking some photos with the 17-70mm lens. Now I have a question when the lens has the small lens hood on and when the flash is used at 17mm there is a round black shadow at the bottom of every shot.

Now I haven't had time to test or upload photo's but my thoughts are the flash is hitting the hood causing the shadow.

Now quickly I took the lens hood off and the shadow is gone and only tiny on some pics.

Is this because the flash hits the lens hood at 17mm? I will try and get photos up later.

[DzRbenson]

[B D H]

Hi DZB

I'm pretty sure it's the flash (built in) & the hood causing this
The very thing happened to me with a canon 17-85 (at 17mm) and it's hood

I guess it's all part of the learning curve
Because of the wide angle, mine was even being affected by a polarizing filter, at each corner it was darkened

[stevemack]

Hi Dz its your lens hood causing the problem cheers.

steve.

[tannyboy]

Yup its the pop up flash causing the problem and the hood (and maybe the length of the lens) blocking off the light.

When my sister borrowed my 24-70 sigma it happened to her.

[ricktas]

Definitely lens hood. With some lenses and setups, even without a hood, the edge of the actual lens does the same thing. But in your case, remove the lens hood and you should be just fine.