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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 29 May 2012 (Tuesday) 19:44
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ef-s lenses on aps-h sensor

 
p32shooter
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May 29, 2012 19:44 |  #1

i now have a 1.3 crop factor aps-h 1d2n camera and a bunch of ef-s lenses for 40/50ds etc i understand that some like tokina 11-16 might be used in a lower zoom range with out hitting the mirror

anyone have experience with this? and recommendations for use? tia


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The ­ Fox
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May 29, 2012 20:08 |  #2

There has been a few people to mod EF-S lenses to work on non APS-C sensor cameras and it does work well.

All third party lenses (sigma, tamron, tokina, etc.) use the standard EF mount as canon is the only one to use the mount that blocks your ability to mate it with other cameras. You can no problem put those on full frame DSLR camera and the only real issue will be vignetting from the smaller image circle. I have used my 17-50mm F2.8 Tamron on a 5d, 5d mk II and 1d mk IIn with the only issue being vignetting in the extreme corners.

The EF-S lenses can work, but you have to change the mount and not mess anything up when you do and it is not something for the non mechanically inclined.

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LowriderS10
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May 29, 2012 20:47 |  #3

The Tokina won't hit the mirror regardless of how much you zoom in/out...however, at 11 mm it'll vignette severely (here's a shot I took @ 11 mm with the Tokina 11-16 on my old 1D Mark III):

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I wasn't happy with the vignetting until about 13.5mm, which left the Tokina as basically a prime lens on the 1D3. While it may be a fun toy, I decided that I'd sell the lens and put the $$ towards a 16-35L instead. The 2.5mm won't make a huge difference, but I have a much more versatile and usable lens (and now that I've moved to FF, it makes even more sense to have the 16-35L vs. the Tokina).

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SkipD
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May 29, 2012 20:51 |  #4

p32shooter wrote in post #14502819 (external link)
i now have a 1.3 crop factor aps-h 1d2n camera and a bunch of ef-s lenses for 40/50ds etc i understand that some like tokina 11-16 might be used in a lower zoom range with out hitting the mirror

anyone have experience with this? and recommendations for use? tia

The only EF-S mount lenses ever made are Canon lenses.

None of the third-party "digital only" lenses are EF-S mount lenses. Thus, as stated above, they will mount to any EOS camera. However, you can expect the lenses which are designed for the APS-C format will cause vignetting on larger format cameras.


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jhphotography
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May 29, 2012 22:40 |  #5

Does anyone know whats with the over the shoulder boulder holders? Or is it just me?


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May 29, 2012 23:19 |  #6

SkipD wrote in post #14503135 (external link)
The only EF-S mount lenses ever made are Canon lenses.

None of the third-party "digital only" lenses are EF-S mount lenses. Thus, as stated above, they will mount to any EOS camera. However, you can expect the lenses which are designed for the APS-C format will cause vignetting on larger format cameras.

You can't mount a sigma 30mm on a ff eos camera.


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SkipD
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May 30, 2012 00:29 |  #7

BryantFC wrote in post #14503902 (external link)
You can't mount a sigma 30mm on a ff eos camera.

Why not?


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gremlin75
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May 30, 2012 02:06 |  #8

SkipD wrote in post #14504131 (external link)
Why not?

I'm wondering the same thing. To my understanding Sigma DC lenses use a standard EF mount but the image circle is made to only fit APS-C cameras. So any DC lens from sigma 'can' mount to a FF or APS-H body (meaning it will go on and the mirror will not smack the mount) but the image circle wont fit the whole sensor.




  
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LowriderS10
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May 30, 2012 02:27 |  #9

While I'm by no means an expert...as far as I know, PHYSICALLY everything will mount on FF.

HOWEVER, if you take a picture with Canon's EF-S lenses, you COULD potentially destroy the mirror/rear element.

With third-party lenses, as far as I know ALL EF mount lenses mount and on all crop and FF bodies, however, on FF and APS-H bodies, they can lead to some serious vignetting.


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KCY
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May 30, 2012 02:33 |  #10

EF-S lens will not mount on a FF camera, unless you modify the lens.

The EF-S series has a rear baffle that will physically prevent you from mounting it on a EF mount.


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JohnB57
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May 30, 2012 04:10 |  #11

jhphotography wrote in post #14503710 (external link)
Does anyone know whats with the over the shoulder boulder holders? Or is it just me?

No idea, but they're definitely not Full Frame.




  
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p32shooter
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May 30, 2012 06:45 |  #12

maybe just "bra"ying at the topic?


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SkipD
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May 30, 2012 07:22 |  #13

KCY wrote in post #14504435 (external link)
EF-S lens will not mount on a FF camera, unless you modify the lens.

The EF-S series has a rear baffle that will physically prevent you from mounting it on a EF mount.

This is quite true, but to the best of my knowledge EF-S mount lenses are made ONLY by Canon.

BryantFC apparently thinks that the Sigma 30 f/1.4 is made to EF-S specifications and has a mount which will not connect to cameras not designed for Canon's EF-S lenses.

I did notice on B&H's web site that the "Camera Mount Type" specification is "Canon EF-S". I think this is just a misleading statement that the lens is designed for APS-C format cameras. Sigma's web site says nothing of the sort about "EF-S".


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gremlin75
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May 30, 2012 13:32 |  #14

SkipD wrote in post #14504989 (external link)
I did notice on B&H's web site that the "Camera Mount Type" specification is "Canon EF-S". I think this is just a misleading statement that the lens is designed for APS-C format cameras. Sigma's web site says nothing of the sort about "EF-S".

Yeah sigma uses the "EF" mount no matter if the lens is designed for ff or APS-C, there is no "short back" (aka baffle) on sigme mounts so they should mount to a ff camera without issue.....other then the huge amounts of vignetting.

I think B&H lists it's as EF-S mount just so people won't confuse it as being a ff lens. Because in actuality it's not a ef-s mount just smaller image circle.




  
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ef-s lenses on aps-h sensor
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