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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

 
LollieLaurie
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Sep 04, 2012 09:21 |  #736

baio wrote in post #14925765 (external link)
Trying out some long exposures with the 7D, ƒ3,5, 25secs, iso12800

IMAGE NOT FOUND
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IMG_0661 (external link) by ba-io (external link), on Flickr

Truly awesome! I wonder if I would get the same effect here in Belgium, probably not though :p

Now I wanna try that out


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RAH1861
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Sep 05, 2012 09:21 |  #737

N4ck, I really like your Sequoia National Park picture! Did you crop it any? (it almost looks like a regular ultra wide-angle view - like with a 10 or 12mm lens).

It is very interesting to me that this lens is capable of such non-distorted-looking images like your Sequoia scene. Very cool! :)


Rich
Canon 80D; 60D; SL1; Canon 60mm; Canon 400mm f5.6L; Canon 1.4 II teleconverter; Canon 10-18 STM; Canon 55-250 STM; Tokina 12-24; Sigma 17-50; Sigma 17-70; Sigma 18-250; Bower 35mm; Tamron 70-300; Pro-Optic 8mm fisheye

  
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Cygnusx1
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Sep 06, 2012 00:25 |  #738

Yes, I agree, those images above are incredible. Here is one of mine.

IMAGE: http://dcer.smugmug.com/Other/Fishing-in-NYC/i-S7JnJt3/0/XL/IMG0699-XL.jpg

Canon 20D(sold), EOS 7D, Bower 8mm, Canon f/2.5 Macro, Sigma 18-50mm f/2.8, Sigma 80-400mm EX/DG/OS.
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pkilla
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Sep 06, 2012 11:06 |  #739

Cygnus nice pic damn that's wide was this at f3.5


T3i griped - rokinon 8mm/rokinon 35 1.4/rokinon 85mm 1.4/
sigma 17-50/nikon 50mm 1.2 ai-s/nikon 28mm ai-s 2.8/
helios 40-2/helios 44-2/mir 1b 37mm 2.8/supertak 135/
trioplan/http://www.flickr.com/​photos/pkilla617/ (external link)
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baio
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Sep 06, 2012 11:13 as a reply to  @ pkilla's post |  #740

LollieLaurie wrote in post #14946017 (external link)
Truly awesome! I wonder if I would get the same effect here in Belgium, probably not though :p

Now I wanna try that out

Near big cities it's impossibile to catch so many stars because of light pollution. That was taken in a very rural area in France :D

lensmen wrote in post #14944606 (external link)
Amazing.

Would using a longer exposure time with lower ISO does the same effect ?

I always keep the shutter at 20-25 seconds, because with 30sec or longer exposures you start getting the "star trail" effect. Using the maximum ISO of a camera is not a problem for this kind of photos, even if it's very grainy still looks good when posted to Flickr :D


Canon EOS 550D(RIP) EOS 5DmkIII ~ EOS 1N ~ EOS 33
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Cygnusx1
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Sep 06, 2012 23:58 |  #741

pkilla wrote in post #14955292 (external link)
Cygnus nice pic damn that's wide was this at f3.5

Thanks, yes, I believe that was wide open, and focused to infinity.


Canon 20D(sold), EOS 7D, Bower 8mm, Canon f/2.5 Macro, Sigma 18-50mm f/2.8, Sigma 80-400mm EX/DG/OS.
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djtwigsta
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Sep 07, 2012 08:28 |  #742

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1995 Cadillac Fleetwood Brougham Lowrider
TWiG Photography!!! (external link)

  
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pulsar123
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Sep 13, 2012 09:36 |  #743

Anyone tried to use a neutral density (ND) filter with this lens? There must be a way to attach a very thin filter (something like a piece of overexposed negative film) at the back of the lens - this should ensure relatively low level of vignetting. I don't know if IQ will be compromised though.

The effect I am trying to achieve is something like in this Flickr gallery (external link). These are daytime long exposure street photos, with walking people. The nice contrast is either between "eternal" buildings and "ephemeral" humans, or between one person who is not moving for whatever reasons, and the blurred rest of the crowd. All these shots are done with rectilinear lenses, but I wonder if using Samyang with an ND filter would make something even more interesting.


6D, Tamron 24-70 f2.8 VC, 135L, 70-200 f4L, Laowa 15mm 1:1 macro, 50mm f1.8 STM, Samyang 8mm fisheye, home studio

  
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495
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Sep 13, 2012 11:09 |  #744

never thought of that pulsar! i will definetely try it, but how to place the small piece of film at the pack without it getting in the camera or on the sensor?

its one of my main goals to take timelapse shots during the day with long exposure with this lens and thanks to you now i have hope! :)


My 500px (external link), My Flickr (external link), My Blog (external link), My Fb page (external link), My Deviant (external link), My Tumblr (external link)
|6D|85mm 1.2 II L|Samyang 14mm 2.8|50mm 1.8|

  
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pulsar123
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Sep 13, 2012 15:23 |  #745

I heard that some fisheye lenses accept rear filters (I think one of Russian-made ones), and that gave me an idea about Samyang. I have no idea if it's easy to implement, but I can try.


6D, Tamron 24-70 f2.8 VC, 135L, 70-200 f4L, Laowa 15mm 1:1 macro, 50mm f1.8 STM, Samyang 8mm fisheye, home studio

  
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hyogen
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Sep 13, 2012 18:13 |  #746

Helped a couple people on T1i photos having sharpness issues with their samyang/rokinon 8mm lens... apparently a very rampant issue. Found help on flickr/Glenn's Focus on Newfoundland site on how to calibrate it.

I can't remember now though...what is the optimal setting for aperture and focal distance once it is calibrated? like f/5 and 10feet-infinity?


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EOS R, 24mm TS-E / RF 35mm 1.8 / RF 28-70 2.0 / EF 16-35 2.8 ii / EF 70-200 2.8 ii / Zhiyun Weebill S

  
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M_Six
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Sep 13, 2012 19:33 |  #747

hyogen wrote in post #14987608 (external link)
Helped a couple people on T1i photos having sharpness issues with their samyang/rokinon 8mm lens... apparently a very rampant issue. Found help on flickr/Glenn's Focus on Newfoundland site on how to calibrate it.

I can't remember now though...what is the optimal setting for aperture and focal distance once it is calibrated? like f/5 and 10feet-infinity?

F8 and focus set just shy of infinity gives sharpness from a few feet to infinity. Does on my T1i in any case.

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pulsar123
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Sep 14, 2012 08:03 |  #748

hyogen wrote in post #14987608 (external link)
Helped a couple people on T1i photos having sharpness issues with their samyang/rokinon 8mm lens... apparently a very rampant issue. Found help on flickr/Glenn's Focus on Newfoundland site on how to calibrate it.

I can't remember now though...what is the optimal setting for aperture and focal distance once it is calibrated? like f/5 and 10feet-infinity?

I did testing for hyperfocal distance with my Samyang, at different aperture numbers (because with this lens hyperfocal distance is all you ever need to know - just set it and forget it). It is fairly easy - use tripod, lock mirror, remote trigger, and start shooting a remote (hundreds meters away) target with fine details, in good daylight. Choose aperture (say f/8), and then gradually change distance on the distance scale. Then study the shots on your PC at 100% zoom. You'll find that the images look identical at pixel level down to certain distance, and then start getting blurred. This distance is then the hyperfocal distance for this aperture, in the most strict sense. (Usually one uses circle of confusion to get the hyperfocal distance; making sure image is sharp at the pixel level is the most conservative way to compute the hyperfocal distance).

What I found surprised me - apparently, my Samyang was badly mis-calibrated (in terms of the distance scale). Infinity is actually around ~1.4m. I found that for both f/8 and f/11 apertures (the sharpest for this lens), the hyperfocal distance is 0.7m (on my lens' scale). Meaning I can now set it at 0.7m, aperture at f/8, and all my shots will be sharp at pixel level between ~0.4m and infinity.

I strongly recommend all Samyang owners to do such a test, given that the distance scale seems not to be calibrated on this lens.


6D, Tamron 24-70 f2.8 VC, 135L, 70-200 f4L, Laowa 15mm 1:1 macro, 50mm f1.8 STM, Samyang 8mm fisheye, home studio

  
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hyogen
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Sep 14, 2012 13:49 |  #749

yep, this is what I did except in a little less exact way. I stood in the same spot and took pics--reviewed the pics on my Camera's screen zoomed in 5x and 10x. It seemed to get the job done and I'm super pleased with the results compared to the before.


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EOS R, 24mm TS-E / RF 35mm 1.8 / RF 28-70 2.0 / EF 16-35 2.8 ii / EF 70-200 2.8 ii / Zhiyun Weebill S

  
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seattle1
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Sep 14, 2012 21:36 |  #750

A shot from my Yellowstone trip last month.

IMAGE: http://farm9.staticflickr.com/8442/7987200879_98e8e31d0f_z.jpg
IMAGE LINK: http://www.flickr.com/​photos/nwdad/798720087​9/  (external link)
Yellowstone Under Canvas (external link) by Northwest dad (external link), on Flickr



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