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Canon 6D EFSC vibration test

 
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Pau
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Joined: 20 Jan 2010
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Location: Valencia, Spain

PostPosted: Fri Sep 13, 2013 3:13 pm    Post subject: Canon 6D EFSC vibration test Reply with quote

After the unexpected bad experience (*) with vibration blur with the Canon 60D in LV silent mode, a problem not present in most EOS bodies (including my 7D) (**) I was curious about the new relatively affordable full frame 6D, on paper a very desirable camera for macro and micro photographers, so I picked my brother's just bought 6D for few days.
My first impression was not good: the noise at the expossure start is much heavier than the 7D one.

I hooked it to my Zeiss Standard microscope to test it at different magnifications and expossure times. In principle the maximum vibration blur is to be expected around 1/60s to 1/15s while with long times as 2s most vibration must be damped not affecting the image.

All my tests results show the same: no vibration blur with EFSC Very Happy
This is one of the results:

Taken with a 40X 0.70 NPL Fluotar Leitz objective, total magnification on sensor 100X, Brightfield oblique illumination. 100% (actual pixels) crop. Just converted from RAW with DPP without any aditional PP.
Be aware that the diatom Pleurosigma is a classic test object for 40X objectives. All visible resolution is present in the pictures.

Of course, shotting without EFSC the images are blured as expected.

(*) http://www.photomacrography.net/forum/viewtopic.php?p=76665#76665

(**) http://krebsmicro.com/Canon_EFSC/index.html
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ray_parkhurst



Joined: 20 Nov 2010
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Location: Santa Clara, CA, USA

PostPosted: Fri Sep 13, 2013 7:27 pm    Post subject: Reply with quote

Thanks for the test Pau. I have been wondering about the Canon FF EFSC performance. I'm a little confused about one of your first statements:

"My first impression was not good: the noise at the expossure start is much heavier than the 7D one"

Under what conditions did the 6D look worse than the 7D?

Thanks again...Ray
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rjlittlefield
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Joined: 01 Aug 2006
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PostPosted: Fri Sep 13, 2013 8:34 pm    Post subject: Reply with quote

ray_parkhurst wrote:
"My first impression was not good: the noise at the expossure start is much heavier than the 7D one"

Under what conditions did the 6D look worse than the 7D?

I wondered about this too. After several readings, I concluded that probably Pau's first impression was based on the audible sound alone, but then the images looked good despite the louder noise. I'll be interested to learn if that interpretation was right.

--Rik
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Pau
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PostPosted: Sat Sep 14, 2013 1:54 am    Post subject: Reply with quote

Ray, Rik,
Yes my "first impression" refers to the sound at the expossure start when I hand holded the camera before testing it. Of course it also happens during the tests but after an afternoon testing it I was unable to see any vibration induced blur.
Sorry if I didn't write it enough clear
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ray_parkhurst



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PostPosted: Sat Sep 14, 2013 2:04 pm    Post subject: Reply with quote

No worries Pau, I just wanted to be sure I wasn't missing something important about your observations. Thanks again for the test...Ray
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Guido



Joined: 08 Jun 2011
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PostPosted: Sat Sep 14, 2013 10:54 pm    Post subject: Reply with quote

I did read somewere that EFSC is turned off if a flash is used.
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Pau
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PostPosted: Sun Sep 15, 2013 12:36 am    Post subject: Reply with quote

Guido,
Yes, if the camera detects a Canon compatible flash it disables EFSC. With generic flashes it's not disabled but the flash doesn't fire because it needs the shutter signal to synchronise.
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Fredlab



Joined: 09 Nov 2012
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Location: Burgundy

PostPosted: Sun Sep 15, 2013 12:42 am    Post subject: Reply with quote

Hello

With flash, you don't need EFSC...
lighting is really short, so it freezes all movements.
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Fredlab



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PostPosted: Sun Sep 15, 2013 12:44 am    Post subject: Reply with quote

I can confirm : EFSC with EOS 500D & 550D is efficient
(to link with another discussion)
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Guido



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PostPosted: Sun Sep 15, 2013 1:06 am    Post subject: Reply with quote

Fredlab wrote:
Hello

With flash, you don't need EFSC...
lighting is really short, so it freezes all movements.


I often try to get the amount flash and ambient light in balance. In that case a problem could occur.
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