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Thread started 17 Nov 2006 (Friday) 21:07
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Canon EF 400mm f/5.6L USM

 
Sgt.
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May 16, 2015 19:37 |  #4891

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Sgt.
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May 22, 2015 19:04 |  #4892

Just curious if anyone here has tried the dot tune method to MFA this lens?


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rljenkins
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May 23, 2015 08:05 as a reply to  @ Sgt.'s post |  #4893

On a 70D my copy of the 400mm required +5 MFA using dot tune and a target at a distance of 55 feet using a tripod.

After determining the dot tune value, I proceeded to shoot at various MFA values to prove to myself that +5 was indeed the value, and it held as true for me.


6D, 5D, 70D, SL1; Canon 24-70 F4, 24 STM, 40 STM, 50 STM, 100 F2, 200 2.8, 400 5.6, Sigma 150-600 C, Tamron 17-35 2.8-4

  
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Sgt.
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May 23, 2015 20:47 |  #4894

Interesting, have thought about trying it. How did you measure out 55 feet? Tape measure?


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rljenkins
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Post edited over 4 years ago by rljenkins.
     
May 24, 2015 16:31 as a reply to  @ Sgt.'s post |  #4895

I walked off the distance as my shoes are 12 inches. I believe Canon recommends 50 times the focal length for the distance to use for MFA targets, which is around 65 feet (~20 meters). I was a little short of this, but setting up for 65 would have been more difficult in my backyard.

Sgt: Your shots have looked spot on to me. Are you expecting a higher keeper rate, or do you think you are applying more sharpening in post processing than normal?

I would take my 70D with a grain of salt because nearly every lens I have requires some MFA with it. I think Canon got lazy with the calibration on the early production of the 70D, and I've read several posts of others with the same issue.


6D, 5D, 70D, SL1; Canon 24-70 F4, 24 STM, 40 STM, 50 STM, 100 F2, 200 2.8, 400 5.6, Sigma 150-600 C, Tamron 17-35 2.8-4

  
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May 24, 2015 18:47 |  #4896

I MFA all my lenses except this one, dont know if it is worth trying or not!
I do minimal sharpening in post, however a higher keeper rate would be good!


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moraleda
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May 27, 2015 20:37 |  #4897

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May 28, 2015 19:49 |  #4898

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May 28, 2015 21:33 |  #4899
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I just can't get close enough to birds to obtain those popular completely blurred backgrounds. :(

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May 30, 2015 06:58 |  #4900

Hello, next Wednesday I'm going to order this lens, Canon 400mm F5.6, but I'm still having some doubt between that and the 100-400 II IS.
The prime lens is cheaper, the 100-400 twice the price and I already own a 55-250 so I do not need attually the range 100-300, at least that's what I think.

As being not an expert, is there any other element I should take into account before buying?

Before I was also considering the 150-600 Tamron or Sigma.

Thank you


Nikon D750 - Nikon D7200 - Nikon S33 - Olympus Om10 Mark II
Nikkor, Sigma, Zuiko and PanaLeica lenses.

  
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May 30, 2015 12:14 |  #4901
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Can't say that I'm really happy with this lens: it never fit the camera's mount well (there's play that apparently is normal, but it vexes me: https://photography-on-the.net …howthread.php?p​=16811697), it has no IS, and the AF motor makes some clunky noises from time to time.

I'd probably exchange it for the new 100-400mm zoom lens, but I don't like the latter's variable aperture and change in size when zooming. And I won't touch Tamrons or Sigmas.


'The success of the second-rate is deplorable in itself; but it is more deplorable in that it very often obscures the genuine masterpiece. If the crowd runs after the false, it must neglect the true.' —Arthur Machen
Why 'The Histogram' Sux (external link)

  
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moraleda
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May 31, 2015 20:28 |  #4902

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Jun 07, 2015 18:47 |  #4903

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moraleda
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Jun 14, 2015 18:40 |  #4904

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Jun 28, 2015 13:23 |  #4905

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Canon EF 400mm f/5.6L USM
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