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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 20 Jan 2012 (Friday) 06:36
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Samyang 8mm

 
Nasser
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Jan 20, 2012 06:36 |  #1

Hello
Why I'm getting black strange frame when using Samyang 8mm on my 5D Mark II ?


Canon 30D | 5D Mark II | EF 24-105mm f/4L IS USM | EF-S 17 - 55 mm F2.8 IS | EF 100-400mm f4.5-5.6L IS USM |EF 100/2.8 Macro | EF 50/1.4 | EF 17-40mm f/4.0 L USM | EF 70-200mm f/2.8 L IS USM| 580EX | 2x Sandisk 8 GB | CyberSync Flash Trigger | AB1600 , x2 AB800 .

  
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RandyS
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Jan 20, 2012 06:46 |  #2

That lens is a circular fisheye on a full frame camera.

You're simply seeing the entire image circle that the lens projects onto your sensor.

ETA: I believe about the shortest full frame non-circular fisheye lenses are 15mm.




  
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Nasser
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Jan 20, 2012 06:56 |  #3

RandyS wrote in post #13736694 (external link)
That lens is a circular fisheye on a full frame camera.

You're simply seeing the entire image circle that the lens projects onto your sensor.

ETA: I believe about the shortest full frame non-circular fisheye lenses are 15mm.

Thanks , Do you mean this lens is not for the full frame cameras ?


Canon 30D | 5D Mark II | EF 24-105mm f/4L IS USM | EF-S 17 - 55 mm F2.8 IS | EF 100-400mm f4.5-5.6L IS USM |EF 100/2.8 Macro | EF 50/1.4 | EF 17-40mm f/4.0 L USM | EF 70-200mm f/2.8 L IS USM| 580EX | 2x Sandisk 8 GB | CyberSync Flash Trigger | AB1600 , x2 AB800 .

  
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AntonLargiader
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Jan 20, 2012 07:58 |  #4

Apparently so. Samyang only lists APS-C specs for it, not FF.

http://www.syopt.co.kr​/eng/product/8mm.asp (external link)


T2i . 18-55 IS . 70-300 IS USM . 70-200 2.8L IS . 28mm 1.8 . 100 Macro . 430EX II . TT1/TT5 . Bogen/Manfrotto 3021 w/3265 ball-mount

  
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lilkngster
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Jan 20, 2012 11:49 |  #5

you are catching some of the built in hood in your image. you can shave the hood down yourself or send it off to have it done for you. try "shaved samyang 8mm" in your searches.


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StephenAndrew
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Jan 20, 2012 12:09 |  #6

This is what it will look like if you shave the hood:

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IMAGE IS A REDIRECT OR MISSING!
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This is what you will then see when you use it on a 5D2 (except for all that clutter maybe...)

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
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So it's not quite a full circular fisheye on a full frame, but you do get a fair bit more coverage if you shave the hood petals off. Fun to play around with, but now the lens cap is useless.

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Nasser
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Jan 21, 2012 00:06 |  #7

Thanks , I'll try it on my D30 , will I get the same ?


Canon 30D | 5D Mark II | EF 24-105mm f/4L IS USM | EF-S 17 - 55 mm F2.8 IS | EF 100-400mm f4.5-5.6L IS USM |EF 100/2.8 Macro | EF 50/1.4 | EF 17-40mm f/4.0 L USM | EF 70-200mm f/2.8 L IS USM| 580EX | 2x Sandisk 8 GB | CyberSync Flash Trigger | AB1600 , x2 AB800 .

  
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frankk
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Jan 21, 2012 00:16 |  #8

Nasser wrote in post #13741461 (external link)
Thanks , I'll try it on my D30 , will I get the same ?

It will cover the whole frame on a crop. On a FF, you will need to crop the results. Check out Canon's new 8-15mm images in the Sample Archive to see how 8 and 15mm look on FF and crop.




  
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StructuredAmazing
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Jan 21, 2012 01:17 |  #9

RandyS wrote in post #13736694 (external link)
That lens is a circular fisheye on a full frame camera.

You're simply seeing the entire image circle that the lens projects onto your sensor.

ETA: I believe about the shortest full frame non-circular fisheye lenses are 15mm.
IMAGE NOT FOUND
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not the tokina 11-16mm?


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seattle1
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Jan 21, 2012 01:24 |  #10

Opteka makes a version of the Samyang 8mm that has a removable hood they call it a 6.5mm

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http://www.amazon.com …tal-Cameras/dp/B002KLY9I6 (external link)




  
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AntonLargiader
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Jan 21, 2012 07:42 |  #11

FL numbers are not reliable indicators of the FoV when it comes to fisheyes. I remember from a thread a while ago that there is a 28mm circular fisheye somewhere.


T2i . 18-55 IS . 70-300 IS USM . 70-200 2.8L IS . 28mm 1.8 . 100 Macro . 430EX II . TT1/TT5 . Bogen/Manfrotto 3021 w/3265 ball-mount

  
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RandyS
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Jan 21, 2012 08:26 |  #12

StructuredAmazing wrote in post #13741689 (external link)
not the tokina 11-16mm?

Well, other than the fact that it's an APS-C wide angle lens, and not a full frame fisheye there is that one.




  
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Nasser
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Jan 22, 2012 10:55 |  #13

Thanks folks , any fish-eye option for 5D Mark II


Canon 30D | 5D Mark II | EF 24-105mm f/4L IS USM | EF-S 17 - 55 mm F2.8 IS | EF 100-400mm f4.5-5.6L IS USM |EF 100/2.8 Macro | EF 50/1.4 | EF 17-40mm f/4.0 L USM | EF 70-200mm f/2.8 L IS USM| 580EX | 2x Sandisk 8 GB | CyberSync Flash Trigger | AB1600 , x2 AB800 .

  
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AntonLargiader
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Jan 22, 2012 10:59 |  #14

Canon makes a few. Notably the 8-15 f/4 and the 15 f/2.8:

http://www.usa.canon.c​om …ts/cameras/ef_l​ens_lineup (external link)


T2i . 18-55 IS . 70-300 IS USM . 70-200 2.8L IS . 28mm 1.8 . 100 Macro . 430EX II . TT1/TT5 . Bogen/Manfrotto 3021 w/3265 ball-mount

  
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Samyang 8mm
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