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Thread started 09 Feb 2011 (Wednesday) 12:43
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Why is the 7D a great camera for action / moving shots?

 
craigslistpost604
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Feb 09, 2011 12:43 |  #1
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I know it have 8fps but does that mean I have to press on the shutter speed for 1 second to take 8 shots and pray that one of the eight shots will be a acceptable shot? Or do people mean that it's good for action moving objects because it focus fast and can take a great shot in 1 shutter click? The reason I'm asking is because I have a 5D Mark II but it 40% of my shots are blurry although I set it at ISO 1600 at night, and I'm thinking of getting the 7D instead because it have 19AF points and focuses faster. I take shots that are not posed or still and my 5D takes them blurry. And also with the 7D 8fps, wouldn't that spec get the shutter button to die / fail faster because it's shooting at 8fps and it's like racking up actuations faster than taking 1 shot at a time. I think it's very wasteful to take 8 shots and only keep 1 of the 8, and the rest of the 7 is disposed...




  
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hieu1004
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Feb 09, 2011 13:02 |  #2

I have both the 7D and the 5DII so I can give you my input. In a nutshell, the 7D's AF system is just better (besides just the speed). There are custom functions to set up how you want the camera to track and prioritize. The tracking system is more accurate and it locks on to objects with less contrast. Just do a Google search, you'll find a lot of information that describes it in greater detail.


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artyman
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Feb 09, 2011 16:16 |  #3

Just because it can shoot at 8fps doesn't mean you have to keep the shutter depressed for a second, unless you subscribe to the shotgun approach to shooting in the hope that you will hit something at some stage. You also have a choice of multiple shot speeds between 8fps and 3/4fps A quick dab in the slower mode you can get 1 shot, but my reactions aren't fast enough in high speed mode so it's always two frames at least.


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Ken
Canon 7D, 350D, 15-85, 18-55, 75-300, Cosina 100 Macro, Sigma 120-300

  
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HeaTransfer
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Feb 09, 2011 16:18 |  #4

craigslistpost604 wrote in post #11809243 (external link)
The reason I'm asking is because I have a 5D Mark II but it 40% of my shots are blurry although I set it at ISO 1600 at night, and I'm thinking of getting the 7D instead because it have 19AF points and focuses faster.

You might be barking up the wrong tree. It may not be a matter of framerate or autofocus performance.

Before asking about the camera, I should ask: what's your shutter speed? If you're shooting at 1/2 sec no camera is going to give you a blur-free image.




  
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kendon
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Feb 09, 2011 16:19 |  #5

craigslistpost604 wrote in post #11809243 (external link)
The reason I'm asking is because I have a 5D Mark II but it 40% of my shots are blurry although I set it at ISO 1600 at night, and I'm thinking of getting the 7D instead because it have 19AF points and focuses faster.

at this point i would ask for a sample with exif. you are throwing iso sensitivy in one sentence with AF, that doesn't make too much sense. are your images out of focus, or are they blurred because the shutter was too slow and you weren't using a tripod?

edit: lol, that's gotta be seconds you were faster than me ;)


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apersson850
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Feb 09, 2011 16:19 as a reply to  @ artyman's post |  #6

I haven't tried shooting sports with a 5D Mark II, but I have tried with one of the 7Ds predecessors, the 40D.
There's no doubt that the better viewfinder, redesigned AF, extensive customization and high continuous drive speed allows the 7D to perform much better than the 40D in this field. The main advantage the 5D Mark II does have of these is the large viewfinder that comes with the larger sensor and mirror box.


Anders

  
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DutchVince
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Feb 09, 2011 17:22 as a reply to  @ apersson850's post |  #7

My experiences are: shooting BIF.

The AF locks on really well. It tracks very well, it won't let go.
You can tell it to ignore trees (between you and the bird) when you are following a bird.
You can tell it to ignore other birds that are closer or further away.
You can tell it to stop focus hunting as soon as you lose sight of the bird, so it will pick up tracking immediately when you found the bird again.

The custom functions are daunting at first but you can totally control focus behaviour.

All in all I have many more frames in perfect focus than I used to have with other camera's, also in bad (low) light.


7D|400D|10-22|60 Macro|18-55|100-400L|600
Or: just about anything from real close to infinity
Mac Pro|calibrated Eizo monitor
Some of my photo's: http://www.allalin.nl/​photogallery/ (external link)

  
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JChin
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Feb 09, 2011 17:26 |  #8

DutchVince wrote in post #11811109 (external link)
My experiences are: shooting BIF.

The AF locks on really well. It tracks very well, it won't let go.
You can tell it to ignore trees (between you and the bird) when you are following a bird.
You can tell it to ignore other birds that are closer or further away.
You can tell it to stop focus hunting as soon as you lose sight of the bird, so it will pick up tracking immediately when you found the bird again.

The custom functions are daunting at first but you can totally control focus behaviour.

All in all I have many more frames in perfect focus than I used to have with other camera's, also in bad (low) light.

Can you share your custom functions AF settings with us?


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Tony_Stark
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Feb 09, 2011 17:28 |  #9

DutchVince wrote in post #11811109 (external link)
My experiences are: shooting BIF.

The AF locks on really well. It tracks very well, it won't let go.
You can tell it to ignore trees (between you and the bird) when you are following a bird.
You can tell it to ignore other birds that are closer or further away.
You can tell it to stop focus hunting as soon as you lose sight of the bird, so it will pick up tracking immediately when you found the bird again.


The custom functions are daunting at first but you can totally control focus behaviour.

All in all I have many more frames in perfect focus than I used to have with other camera's, also in bad (low) light.

That is incredible :eek: Now I have a tough choice between a 7D and 5Dc as my next body :/


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mtimber
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Feb 09, 2011 17:35 |  #10

Tony_Stark wrote in post #11811136 (external link)
That is incredible :eek: Now I have a tough choice between a 7D and 5Dc as my next body :/

I had a 50d turn up this week as a backup.

I have used it for one day and I am sending it back.

It is not as sharp or as fast to AF.

The 7d sets a standard for all the other canon crops and once you have tried it, you won't want anything else.

I will be getting another 7d as my backup God willing.

Mark :-)


"Owning lots of expensive gear is very important. I helps those of us without talent appear as if we really know what we're doing" (Belmondo)

  
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DutchVince
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Feb 09, 2011 17:36 |  #11

JChin wrote in post #11811129 (external link)
Can you share your custom functions AF settings with us?

No problem....

My settings for my 7D for BIF. The % of keepers is very high :)

All settings saved under C1 (this is such an excellent feature!)

1. Use Zone AF or single point with expansion. Don't use 19 pointAF, it seems slower.
2. Use AI servo (AI focus reacts slower)
3. Auto ISO
4. Tv 1/1500
5. Overexpose 1.5 stop for BIF and DIS (dogs in snow)
6. Hi speed continuous shooting

7. Custom functions: CFN III
No.1: slightly slow or totally slow.
No.2: 0
No.3: 1
No.4: 1

8: turn IS of: there is no hand tremor at 1/1500 anyway.

for explanations on the custom functions see:
http://cpn.canon-europe.com …om_functions_ex​plained.do (external link)
Pages 4 and 5. (can't hotlink to the correct pages)

Two examples using these settings:

IMAGE: http://www.allalin.nl/photogallery/images/20110105202207__mg_5856w900.jpg

IMAGE: http://www.allalin.nl/photogallery/images/20101217184156__mg_5363900.jpg

7D|400D|10-22|60 Macro|18-55|100-400L|600
Or: just about anything from real close to infinity
Mac Pro|calibrated Eizo monitor
Some of my photo's: http://www.allalin.nl/​photogallery/ (external link)

  
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JChin
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Feb 09, 2011 17:42 |  #12

Thanks for the tip on shutting off IS when we have a high speed shutter. I never even thought of that. Thanks for the settings tip. I'll try that.


Johnny J. Chin ~ J. Chin Photography (external link)
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DutchVince
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Feb 09, 2011 17:48 |  #13

JChin wrote in post #11811220 (external link)
Thanks for the tip on shutting off IS when we have a high speed shutter. I never even thought of that. Thanks for the settings tip. I'll try that.

OK, good luck!


7D|400D|10-22|60 Macro|18-55|100-400L|600
Or: just about anything from real close to infinity
Mac Pro|calibrated Eizo monitor
Some of my photo's: http://www.allalin.nl/​photogallery/ (external link)

  
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DutchVince
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Feb 09, 2011 17:51 |  #14

Tony_Stark wrote in post #11811136 (external link)
That is incredible :eek: Now I have a tough choice between a 7D and 5Dc as my next body :/

They are very different camera's. Get both :)


7D|400D|10-22|60 Macro|18-55|100-400L|600
Or: just about anything from real close to infinity
Mac Pro|calibrated Eizo monitor
Some of my photo's: http://www.allalin.nl/​photogallery/ (external link)

  
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cassidyphuey
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Feb 09, 2011 18:19 |  #15

Great AF System besides the 1D series, 8 FPS, 19 Cross type points, what else?




  
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Why is the 7D a great camera for action / moving shots?
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