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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 06 Jun 2012 (Wednesday) 16:17
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Canon EF 40mm f/2.8 Pancake

 
dave_bass5
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Jul 09, 2012 10:05 |  #1096

KCY wrote in post #14691541 (external link)
I'm using back button focusing, I don't need to half press for full time manual focusing.

Neither do I need to touch the back button, all i need to make sure is the camera is not sleeping.

Can anyone else confirm this behaviour?

If you use the back button then no, you dont need to half press it or the shutter button, you have full time MF without touching either.

At least, thats how it works on my 60D, although i dont use the back button much (i tend to forget its set like that and miss the shot).


Dave.
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Tommydigi
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Jul 09, 2012 10:25 |  #1097

dave_bass5 wrote in post #14691530 (external link)
When you turn the focus ring its actually using the motor to adjust focus, even in MF, so thats what you are hearing.
you can half hold the shutter down and have full time MF, but just turning the ring wont change the focus.
I dont understand fully how this focus on a wire thing works but its different from what we are used to.


Thanks, I figured it was normal but just strange. At first I thought it has FTM but then noticed nothing was happening. Either way I like the lens, very sharp wide open and so small, light and cool looking. Mine was a b-day present so even better :-}


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dave_bass5
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Jul 09, 2012 10:38 |  #1098

Tommydigi wrote in post #14691669 (external link)
Thanks, I figured it was normal but just strange. At first I thought it has FTM but then noticed nothing was happening. Either way I like the lens, very sharp wide open and so small, light and cool looking. Mine was a b-day present so even better :-}

Yeah, its a great addition to the Canon line up, and i think its more than worth the cost if you have a need for something like this.
I really cant see me using my 50mm f/1.4 ever again, although i expect ill keep it just in case.

Oh, and belated happy birthday :-)


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Immaculens
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Jul 09, 2012 10:42 |  #1099

dave_bass5 wrote in post #14691713 (external link)
Oh, and belated happy birthday :-)

+ 10K ! :D


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7Dmk II gripped | 5Dc | 150-600 (Σ) OS C | 55-250 IS STM | 100L f/2.8 IS Macro | 15-85 IS | 50 f/1.8 STM | 30 Σ f/1.4 'A'
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Immaculens
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Jul 09, 2012 10:46 |  #1100

Bryan's review: http://www.the-digital-picture.com …-Pancake-Lens-Review.aspx (external link)


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7Dmk II gripped | 5Dc | 150-600 (Σ) OS C | 55-250 IS STM | 100L f/2.8 IS Macro | 15-85 IS | 50 f/1.8 STM | 30 Σ f/1.4 'A'
Learn to love to do well, and you shall. ~ C. Poseidon

  
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Tommydigi
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Jul 09, 2012 10:52 |  #1101

Thanks, I can't wait to shoot with it. It pretty much fizzled any thoughts I had of going to a 4/3 system. I hope Canon plans to make more of these, I would love a 20 to pair it with.


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Jul 09, 2012 10:54 |  #1102

Im looking forward to seeing what the other STM lens is like. By all accounts its going to give the 15-85IS a run for its money. I can live with a slightly longer wide end if i can get the same IQ at the longer end.


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mrkgoo
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Jul 09, 2012 11:03 |  #1103

KCY wrote in post #14691541 (external link)
I'm using back button focusing, I don't need to half press for full time manual focusing.

Neither do I need to touch the back button, all i need to make sure is the camera is not sleeping.

Can anyone else confirm this behaviour?

Interesting. I don't use back button focus, but I will need to check this. I wonder if this setting throws a wrench into the weird 'sleep issue' people get with this lens....like the issue exists for everyone (as in it's a quirk of the lens), but DOESN'T manifest if you use back button focus.

I might ask people in the other thread whether they use back button or not.




  
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dave_bass5
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Jul 09, 2012 11:10 |  #1104

mrkgoo wrote in post #14691840 (external link)
Interesting. I don't use back button focus, but I will need to check this. I wonder if this setting throws a wrench into the weird 'sleep issue' people get with this lens....like the issue exists for everyone (as in it's a quirk of the lens), but DOESN'T manifest if you use back button focus.

I might ask people in the other thread whether they use back button or not.

As i said i dont use it much but when i had the loss of AF last week i did try using the back button to see if it was still working that way but it made no difference, i still had to take the lens off and on again.


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Canon 5DMKIV | Canon EOS-M50 | Canon 24-70 f/2.8L MKII | 70-300L | 135L f/2.0 | EF-S 10-18 | 40 f/2.8 STM | 35mm f/2 IS | Canon S110 | Fuji F31FD | Canon 580EXII, 270EXII | Yongnuo YN-622C Triggers.

  
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RTPVid
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Jul 09, 2012 11:14 |  #1105

From the review:

You could buy 70 of these for the price of one Canon EF 800mm f/5.6 L IS USM Lens. How many 40s would it take to consume the volume of one 800 L is a question I'm still pondering.

:lol::lol:


Tom

  
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dave_bass5
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Jul 09, 2012 11:23 |  #1106

wow, did you see the Extreme full frame corner crops. That 35F2 is pretty poor (and thats being kind).


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Canon 5DMKIV | Canon EOS-M50 | Canon 24-70 f/2.8L MKII | 70-300L | 135L f/2.0 | EF-S 10-18 | 40 f/2.8 STM | 35mm f/2 IS | Canon S110 | Fuji F31FD | Canon 580EXII, 270EXII | Yongnuo YN-622C Triggers.

  
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Charlie
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Jul 09, 2012 11:33 |  #1107

one day I hate this lens for being a 2.8 prime, the next day I want it because it's so small.


Sony A7riii/A9 - FE 12-24/4 - FE 24-240 - SY 24/2.8 - FE 28/2 - FE 35/2.8 - FE 50/1.8 - FE 85/1.8 - EF 135/1.8 Art - F 600/5.6 - CZ 100-300 - Astro Rok 14/2.8 - Tamron 17-28/2.8 - 28-75/2.8 RXD, 70-200/2.8 VC

  
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ettsn
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Jul 09, 2012 12:01 |  #1108

I'm enjoying mine. Tried it with the EF25 macro extension with some nice success. Heck, if I stack the 12 and 25 extensions, it's -almost- 1:1 isn't it?




  
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Tommydigi
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Jul 09, 2012 12:02 |  #1109

Charlie wrote in post #14691984 (external link)
one day I hate this lens for being a 2.8 prime, the next day I want it because it's so small.


But its very sharp at 2.8 and it renders very well.


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Tommydigi
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Jul 09, 2012 12:11 |  #1110

Plus it just looks cool


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Canon EF 40mm f/2.8 Pancake
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