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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 17 Jul 2011 (Sunday) 22:00
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What is causing this...

 
ottacat
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Jul 17, 2011 22:00 |  #1

I was did some motorsport shooting today and got several images like this one with a blurry orange square in the image.

What causes this? Camera is a 7D, lens is 70-200 F2.8 MII and I was using the hood.

Any help would be appreciated.


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yourdoinitwrong
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Jul 17, 2011 22:01 |  #2

Orange cone that blurred as you were panning?


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TheBurningCrown
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Jul 17, 2011 22:02 |  #3

yourdoinitwrong wrote in post #12776094 (external link)
Orange cone that blurred as you were panning?

Could be something on the course.

Some questions:
-Did you have a filter on?
-Were you shooting in LiveView?
-Were you inside?


-Dave
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fiveohmike
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Jul 17, 2011 22:12 as a reply to  @ TheBurningCrown's post |  #4

99% sure thats a cone/course marker as its blurred in the direction of the panning.


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ottacat
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Jul 17, 2011 22:22 |  #5

*Homer Simpson - D-oooh*

Sheesh I feel dumb - yes it was a pylon...


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x_tan
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Jul 17, 2011 22:25 |  #6

? Macro UFO


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vitacura
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Jul 17, 2011 22:26 |  #7

Lol.. glad you got that mystery solved. Nice E46 M3 though!


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phreeky
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Jul 17, 2011 22:36 |  #8

Haha yes it's a cone/marker. I hope you don't mind us having a little chuckle :D




  
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AbPho
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Jul 17, 2011 23:10 |  #9

ottacat wrote in post #12776230 (external link)
*Homer Simpson - D-oooh*

Sheesh I feel dumb - yes it was a pylon...

bw! Awesome. Glad it was something simple.


I'm in Canada. Isn't that weird!

  
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Sharat
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Jul 18, 2011 04:22 |  #10

bw!

x_tan wrote in post #12776248 (external link)
? Macro UFO




  
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quickben
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Jul 18, 2011 05:37 as a reply to  @ Sharat's post |  #11

You're going to be famous.


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yourdoinitwrong
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Jul 18, 2011 07:39 |  #12

ottacat wrote in post #12776230 (external link)
*Homer Simpson - D-oooh*

Sheesh I feel dumb - yes it was a pylon...

:lol: The cone may have thrown you for a loop but you did a good job panning with the car!


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Sorarse
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Jul 18, 2011 07:46 |  #13

Should be a fairly simple job to clone the cone.


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l7s4
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Jul 18, 2011 13:23 |  #14

Timothy...I am wondering why you chose this exposure: f13 x 1/40th @ iso 100. From my track days, I probably would have gone with f8, 1/250-1/500, iso 200-400. The background blur is a product of the pan, not the shutter speed. Good luck, Paul




  
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HughR
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Jul 18, 2011 14:54 |  #15

l7s4 wrote in post #12779702 (external link)
Timothy...I am wondering why you chose this exposure: f13 x 1/40th @ iso 100. From my track days, I probably would have gone with f8, 1/250-1/500, iso 200-400. The background blur is a product of the pan, not the shutter speed. Good luck, Paul

Actually, the background blur is a product of BOTH the shutter speed AND the pan speed. If you pan slowly and shoot at 1/8000 sec, there will be no blur. If you pan at the same speed and shoot at eg. 1/8 sec, there will be significant blur.


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What is causing this...
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