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Thread started 17 Sep 2006 (Sunday) 20:06
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17-55 2.8 IS questiopn

 
syntrix
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Sep 17, 2006 20:06 |  #1

Just a quick question from owners.

Any built-in flash blockage with this lens?

Looks like a winner from all the reviews here, but sometimes you need a little built-in help when you are traveling light.


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scotttnz
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Sep 17, 2006 20:53 |  #2

Yes, the 17-55 does block the internal flash, at 55 on a 350D it does. I haven't tested other focal lengths.

Great lens though!




  
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Ronald ­ S. ­ Jr.
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Sep 17, 2006 20:55 |  #3

No offense, and I don't know what you like to shoot, but I'd at least get a 420 speedlite if and when you can. The built-in can produce some very unfavorable results and shadows. Red-eye, too.

Most lenses I've used are blocked by it, btw.


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tracer ­ bullet
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Sep 17, 2006 21:00 |  #4

I just played with it a bit, and it blocks light if you're extended to 55 and the subject is closer than a foot away. From about one to one-and-a-half feet, it's a bit hazy but there. Once you're more than one-and-a-half feet from the subject, at 55, there is no shadow.

So - it may or may not block the flash, depending on how close to something you expect to be when taking a picture.


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jaymrobinson
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Sep 18, 2006 00:11 |  #5

I use it and haven't had much shadowing trouble with the built-in flash. Although I've just used it for some fill-in when I don't have my bigger flashes around. You will notice it if you are very close to your subject and using the flash as the primary light source, as the others have mentioned.


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calicokat
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Sep 18, 2006 00:25 |  #6

I agree with Ronald on this one, buy an external flash and away go problems down the drain


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syntrix
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Sep 18, 2006 07:00 |  #7

Ronald S. Jr. wrote in post #2000240 (external link)
No offense, and I don't know what you like to shoot, but I'd at least get a 420 speedlite if and when you can. The built-in can produce some very unfavorable results and shadows. Red-eye, too.

Most lenses I've used are blocked by it, btw.

No offense taken, and right back at ya. :razz:

Read the last line of my post ;) I'm asking about it for traveling light. I figured it would block a little bit, but sounds like it's not bad. I don't want to get into a discussion about strobes and flashes.

Sounds like this lens will do just fine!


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ChopstickHero
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Sep 18, 2006 13:05 |  #8

yes, it does cause some blockage. having the hood on their increases blockage.

you can see some shadow by my gf's arm. this was at 17mm, so the lens was not extended.

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Also, the lens hood actually partially blocks the AF assist pattern beam from my speedlite 430EX. However, I have not noticed any negative effects of this.

Canon 40D and 350D :: Canon 70-200mm f/2.8L IS :: Canon 17-55mm f/2.8 IS :: Canon 10-22mm f/3.5-4.5 :: Canon BG-E2 & BG-E3 :: Canon 430EX Speedlite :: Crumpler 6MDH & The Whickey and Cox

  
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17-55 2.8 IS questiopn
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