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FORUMS Sample Photo Archives Lens Sample Photo Archive 
Thread started 29 Jul 2010 (Thursday) 01:36
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Samyang Rokinon Vivitar 14 2.8 lens

 
cozmo2312
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Feb 06, 2014 22:07 |  #3271

GastonGC wrote in post #16668576 (external link)
@cozmo2312, i see in your signature that you also own the 16-35 2.8L.. how does it compare to the 14 in terms of sharpness, contrast, color?

Great picture!

honestly I'm not sure. i JUST got the 16-35. the Rok is so cheap that i'm just going to keep it. that shot above is my sharpest shot out of the lens, so it is sharp, my problem is getting the focus dialed in. i've gotten a lot of soft shots purely because of user error, by no fault of the lens. i just needed something wide with autofocus so if i don't have time to setup for the shot i won't miss it.

i also got the 16-35 to replace the 35/1.4 i had. carry one lens instead of two.


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nathancarter
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Feb 06, 2014 22:23 |  #3272

I'm feeling inspired after seeing a fellow photographer successfully use a (different) UWA for portraits at a modeling event with my local photo club.

I'm gonna try using it on my full-frame for some portraiture this weekend. Wish me luck!


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Osiriz
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Feb 07, 2014 08:15 |  #3273

When doing night sky photography, what is the max exposure time this lens allows without producing star trails? 30 secs?




  
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StillCrazy
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Feb 07, 2014 08:19 |  #3274

Osiriz wrote in post #16670532 (external link)
When doing night sky photography, what is the max exposure time this lens allows without producing star trails? 30 secs?

I haven't had time to try it yet, but I did read here that it's closer to 15 seconds @ f/2.8. There must be a chart somewhere.


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xpfloyd
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Feb 07, 2014 09:23 |  #3275

Osiriz wrote in post #16670532 (external link)
When doing night sky photography, what is the max exposure time this lens allows without producing star trails? 30 secs?

Going by the 500 rule of thumb its 35 seconds. Some people prefer the 400 rule which equates to 28 seconds. (400/focal length). I try and stick to 25 secs but have used 30 without noticeable trails


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titi_67207
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Feb 07, 2014 09:56 |  #3276

nathancarter wrote in post #16669862 (external link)
I'm feeling inspired after seeing a fellow photographer successfully use a (different) UWA for portraits at a modeling event with my local photo club.

I'm gonna try using it on my full-frame for some portraiture this weekend. Wish me luck!

Good luck for portraits with the Samyang 14mm! :lol: And if you want bigger noses, try a fisheye...


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Bro ­ Foto
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Feb 07, 2014 12:53 as a reply to  @ titi_67207's post |  #3277

IMAGE: http://farm4.staticflickr.com/3810/12368788594_824b0b0392_b.jpg
IMAGE LINK: http://www.flickr.com …35295841@N02/12​368788594/  (external link)
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bzollinger
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Feb 07, 2014 15:28 |  #3278

Here's another attempt at getting a sharp photo from this lens.

IMAGE: https://dl.dropboxusercontent.com/u/16139001/lanscape/2014/20140206-_O1C7817-Edit-Edit.jpg

5DMKIII | EOS M | 14mm f/2.8 Rokinon | 15mm f/2.8 fisheye | 16-35mm f/4 L | 24-105mm L | 50mm f/1.4 USM | 100mm Macro f/2.8 L IS | 580ex II | Benro C2980F Veratile legs w/ Manfrotto 468MGRC2 Head | www.alaskanphotographs​.com (external link)

  
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ryane67
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Feb 07, 2014 19:24 |  #3279

Osiriz wrote in post #16670532 (external link)
When doing night sky photography, what is the max exposure time this lens allows without producing star trails? 30 secs?

I got very slight disturbance in stars when doing 30sec, it could be trails, it could be a little shake of the tripod.

You can see how slight they are in the original image here: WAY TOO BIG TO POST (external link)


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Scatterbrained
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Feb 07, 2014 19:33 |  #3280

Osiriz wrote in post #16670532 (external link)
When doing night sky photography, what is the max exposure time this lens allows without producing star trails? 30 secs?

Full frame? I noticed trails forming at 30 seconds. At 25 seconds it's there but not too bad. At 20 seconds you're good to go. I've found that for 30 second exposures I need the fisheye.


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Scatterbrained
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Feb 07, 2014 19:35 |  #3281

ryane67 wrote in post #16672316 (external link)
I got very slight disturbance in stars when doing 30sec, it could be trails, it could be a little shake of the tripod.

You can see how slight they are in the original image here: WAY TOO BIG TO POST (external link)

That's got to be rotation and not shake. Look at the left side and compare it to the right side.


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ryane67
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Feb 07, 2014 19:58 |  #3282

Scatterbrained wrote in post #16672343 (external link)
That's got to be rotation and not shake. Look at the left side and compare it to the right side.

Good point, I was facing west/southwest so it makes sense that the north side of the frame shows less movement.

So there you have it.. 30 seconds shows trails (if you pixel-peep) :)


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RobDickinson
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Feb 07, 2014 22:43 |  #3283

Depends on your latitude too.

I have had 44 seconds without visible trails on 5d2


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zxuansonz
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Feb 07, 2014 22:50 |  #3284

IMAGE: http://farm3.staticflickr.com/2836/12216294856_8ebc9c3ff7_b.jpg

IMAGE: http://farm3.staticflickr.com/2889/12206161366_18e5650fff_b.jpg

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Levina ­ de ­ Ruijter
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Feb 08, 2014 04:14 |  #3285

^^^ I love those, Zxuansonz. Great use of the lens!


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Samyang Rokinon Vivitar 14 2.8 lens
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