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Thread started 03 Mar 2010 (Wednesday) 09:29
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Samyang/Rokinon 8 mm f/3.5 Aspherical IF MC Fish-eye

 
moraleda
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May 02, 2014 11:01 |  #1441

IMAGE: https://farm8.staticflickr.com/7136/7820250826_2f0a47dec6_b.jpg
IMAGE LINK: https://www.flickr.com​/photos/riobiobio/7820​250826/  (external link)
Refri (8/365; 8mm) (external link) por Hernán Morales (external link), en Flickr

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ccdinh
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May 05, 2014 13:45 |  #1442

hey guys, I bought the Rokinon 8mm 3.5 fisheye FE8M-C on Amazon. is this the same one u guys are using? Whats the difference between the EF and the IF?




  
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spotz04
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May 06, 2014 01:41 |  #1443

ccdinh wrote in post #16883803 (external link)
hey guys, I bought the Rokinon 8mm 3.5 fisheye FE8M-C on Amazon. is this the same one u guys are using? Whats the difference between the EF and the IF?

Some are using the same model as your's, which is an older model (gold colored band) with the fixed hood. The newer model (red colored band. HD8M-C) has a removable hood where this is mainly designed for full frame sensors as to lessen vignetting. It also costs more, on average. Newer model still functions great on a crop sensor.

EF means Canon's mount.




  
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drigo
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May 26, 2014 08:36 as a reply to  @ spotz04's post |  #1444

IMAGE: https://scontent-a-mia.xx.fbcdn.net/hphotos-frc3/t31.0-8/10379849_10204156471335730_4983741129157436422_o.jpg

7D/10-22/70-200L f/2.8/ 50 f/1.8 / Rokinon 8mm fisheye /  / 6D Mark II / 16-35L f/2.8 II

  
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CameraMan
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May 26, 2014 11:40 |  #1445

^^^
Nice! Was this person holding a bright light or firing off a flash?


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drigo
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May 26, 2014 13:16 |  #1446

CameraMan wrote in post #16931209 (external link)
^^^
Nice! Was this person holding a bright light or firing off a flash?

thanks! he had a flashlight and sorta made a sweep with it from left to right


7D/10-22/70-200L f/2.8/ 50 f/1.8 / Rokinon 8mm fisheye /  / 6D Mark II / 16-35L f/2.8 II

  
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weststandwailer
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May 27, 2014 00:41 as a reply to  @ drigo's post |  #1447

Heres the Thames from waterloo.

Great lens btw

IMAGE: https://farm6.staticflickr.com/5564/14093950748_872d1b00f5_c.jpg
IMAGE LINK: https://flic.kr/p/ntrb​wQ  (external link) CRESCENT (external link) by lardy_biker (external link), on Flickr



  
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MedicineMan4040
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May 27, 2014 00:48 |  #1448

For kicks put the Rok 8mm on the 6D for this little timelapse in the backyard:
https://www.flickr.com …icineman4040/14​213667746/ (external link)


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Vid Collection: https://www.youtube.co​m/user/medicineman4040 (external link)

  
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RodneyCyr
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May 27, 2014 22:05 as a reply to  @ MedicineMan4040's post |  #1449

"De-Fishing" the Rokinon 8mm Fisheye

The Rokinon responds well to "de-fishing". I used default processing with DxO v9 on the first image. For the second I added barrel-distortion correction, also with DxO v9. I cropped both images vertically because I wanted a wide panoramic effect.

The de-fished image lost some horizontal coverage and also shows some sharpness loss at the edges. But for my needs, I consider the results quite good.

As I seem to be allowed only two images per post, I will post separately a similar shot with my 10-22mm EFS.


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Canon 80D, 60D, Canon 10-22EFs, 15-85EFS IS, Sigma 18-300, Canon 60mm EFs Macro, Rokinon 8mm fisheye, 550EX flash, Olympus TG2 underwater P&S
Postprocessing: DxOLabs, DxO Viewpoint 3, Paint Shop Pro X9
Speak softly and carry a big zoom.

  
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RodneyCyr
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May 27, 2014 22:11 as a reply to  @ RodneyCyr's post |  #1450

"De-fishing" the Rokinon 8mm Fisheye, part 2

Here is a comparison shot with the two fisheye shots I already posted. I shot it with my Canon 10-22mm lens at 10mm.


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Canon 80D, 60D, Canon 10-22EFs, 15-85EFS IS, Sigma 18-300, Canon 60mm EFs Macro, Rokinon 8mm fisheye, 550EX flash, Olympus TG2 underwater P&S
Postprocessing: DxOLabs, DxO Viewpoint 3, Paint Shop Pro X9
Speak softly and carry a big zoom.

  
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moraleda
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May 29, 2014 20:03 |  #1451

IMAGE: https://farm4.staticflickr.com/3792/14115375560_cb74fdc59d_c.jpg
IMAGE LINK: https://www.flickr.com​/photos/riobiobio/1411​5375560/  (external link)
IMG_6278 (external link) por Hernán Morales (external link), en Flickr

IMAGE: https://farm6.staticflickr.com/5585/14301430194_054a7d09e8_c.jpg
IMAGE LINK: https://www.flickr.com​/photos/riobiobio/1430​1430194/  (external link)
IMG_6276 (external link) por Hernán Morales (external link), en Flickr

www.riobiobio.cl (external link)
https://www.flickr.com​/photos/riobiobio/ (external link)

  
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Randoo53
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May 30, 2014 21:15 |  #1452

Hello folks. I'm new to this thread and forums.
I just received my Rokinon 8mm (HD8M-C) today and proceeded to take a few sample shots of some scenery. I started out with f8 (in AV mode) and set the focus to infinity as the scenery was actually across the lake. (it was sunny so my speed was way up there, like 1/3200 or so)
I got nothing but soft images. What I am seeing on this thread are nothing but tack sharp images.
I did some Googling before coming here and read that those lens may not be factory calibrated. Might this be the case? I find it hard to believe that they would send out non-calibrated lens in this day and age.
Thanks in advance for any possible help you could provide. I hope this is something easily correctable before having to send it back (to B&H).




  
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moraleda
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May 31, 2014 20:21 |  #1453

You should use the Hyperfocal:
http://www.dofmaster.c​om/hyperfocal.html (external link)

Randoo53 wrote in post #16941405 (external link)
Hello folks. I'm new to this thread and forums.
I just received my Rokinon 8mm (HD8M-C) today and proceeded to take a few sample shots of some scenery. I started out with f8 (in AV mode) and set the focus to infinity as the scenery was actually across the lake. (it was sunny so my speed was way up there, like 1/3200 or so)
I got nothing but soft images. What I am seeing on this thread are nothing but tack sharp images.
I did some Googling before coming here and read that those lens may not be factory calibrated. Might this be the case? I find it hard to believe that they would send out non-calibrated lens in this day and age.
Thanks in advance for any possible help you could provide. I hope this is something easily correctable before having to send it back (to B&H).


www.riobiobio.cl (external link)
https://www.flickr.com​/photos/riobiobio/ (external link)

  
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-MountainDog-
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Jun 01, 2014 19:08 |  #1454

I bought the Opteka 6.5mm Fisheye a few months ago and finally got around to calibrating the focus on it. I did a series of test shots and found that when the focus was set to 1.2ft my subject 10ft away was in focus. The main reason I calibrated the focus was because when I set the focus to 1ft my actual minimum focus was 2-3 feet away. I hoped that adjusting the focus would give me a better minimum focus distance. This is important because the fun fisheye effect gets more exaggerated the closer the subject is. Also, I would be able to accurately use hyper focal distance calculations.

I'm now happy to say that my focus dial is spot on after following the steps described here:
http://www.focusonnewf​oundland.com/section48​8880.html (external link)

It was pretty easy to do and totally worth it in my opinion. I can now use the distance dial to set the actual focus and I can focus as near as 1ft. The set screws are tiny so I had to dremmel a razor blade in to shape to use as a screw driver.


Canon 70D; 18-135 IS STM, 15-85mm IS, 55-250mm IS, 35mm f2 IS, 50mm 1.8 II, Opteka 6.5mm Fisheye, 430ex II, YN-568ex II, Manfrotto 190CX3 w/ 496RC2, Olympus OM-4, 27" i7 iMac, Lightroom 5
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Nikol@
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Jun 13, 2014 09:27 |  #1455

Entrance to Ljubljana's central cemetery

IMAGE: https://farm4.staticflickr.com/3919/14389224466_8de4a89675_z.jpg
IMAGE LINK: https://flic.kr/p/nVwx​81  (external link) Plečnik's Žale, Ljubljana (external link) by n.ivovic (external link), on Flickr

IMAGE: https://farm4.staticflickr.com/3922/14225743388_073ca092bd_z.jpg
IMAGE LINK: https://flic.kr/p/nF5D​TJ  (external link) Plečnik's Žale, Ljubljana (external link) by n.ivovic (external link), on Flickr

CANON 6D | 60D
Canon 17-40 f4 | Tokina 12-24 f4 | Sigma 35mm f1.4 Art | EF 70-200 f4 IS | Samyang 8mm fisheye | Helios 44m-4 | Pentacon 135 f2.8 | Nissin Di622 mk2

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Samyang/Rokinon 8 mm f/3.5 Aspherical IF MC Fish-eye
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