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Thread started 29 Jul 2010 (Thursday) 01:36
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Samyang Rokinon Vivitar 14 2.8 lens

 
davidmtml
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Aug 26, 2013 19:44 |  #2326

Olicat wrote in post #16241888 (external link)
Love this lens... but recently I've been noticing some problems with the focus scales not showing the correct focus distance...
For example, here's a shot of one of those lens test charts (may not be used correctly but it's something to focus on) at 70cm distance and 0.7m marked focus distance

Both shots have been cropped quite heavily - but... anyone have any ideas?

I don't have this lens, but have been following this thread closely, and have read lots about the lens other places.

It seems like this is actually the norm for this lens. Some people have made their own markings on the distance scale, or just have learned from experience about how far off it is.




  
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macsparky
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Aug 26, 2013 20:00 |  #2327

There is a fairly easy way to fix the distance scale so that you don't have to make your own markings. My worked out of the box, so I never had to try this, but here is a video that shows how to do it:

http://www.videofy.me/​emadeloc/755452 (external link)


EOS 3, EOS 5DS R, EOS 5D Mark II, EOS 7D, EOS M and Rebel XTi
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bidkev
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Aug 26, 2013 20:53 |  #2328

IMAGE: http://farm3.staticflickr.com/2847/9523141328_ea064d7113_b.jpg
IMAGE LINK: http://www.flickr.com/​photos/bidkev/95231413​28/  (external link)
I won this...........now I've got to carry it around all day! (external link) by bidkev1 (external link), on Flickr

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Olympus PenF | Olympus OM-D E-M5 mkll x 2 gripped | Olympus OM-D E-M10 mkll gripped | Olympus 12-40 2.8 pro | 14 -150 | 17mm 1.8 | 9mm BCL | Panasonic 12-32 | 25mm 1.7 | Panasonic Leica 8-18 | Panasonic Leica 100-400 | Godox TT685O speedlite

  
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Olicat
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Aug 27, 2013 05:44 |  #2329

macsparky wrote in post #16242641 (external link)
There is a fairly easy way to fix the distance scale so that you don't have to make your own markings. My worked out of the box, so I never had to try this, but here is a video that shows how to do it:

http://www.videofy.me/​emadeloc/755452 (external link)

Well, I was brave and had a go myself aaannnd.... I think it focuses better now :D After several trial and error attempts though haha


Oliver Curtis, 17 year old using a Canon EOS-1D Mark II N, Canon EOS 400D, Canon 100-400 L, Canon 50mm 1.8 and Samyang 14mm 2.8. EOS 300 + Canon AE-1P 35mm film cameras

  
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bidkev
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Aug 27, 2013 08:17 |  #2330

I've gone for one of these to help with focus: http://www.ebay.com.au …ories&hash=item​27c14ff5c9 (external link)

it's not arrived yet but it has decent reviews for the price so I'll see how it goes when it arrives.


See my fishy photography here: https://kevindickinson​fineartphot.smugmug.co​m/Tropical-Fish-2/ (external link)
Olympus PenF | Olympus OM-D E-M5 mkll x 2 gripped | Olympus OM-D E-M10 mkll gripped | Olympus 12-40 2.8 pro | 14 -150 | 17mm 1.8 | 9mm BCL | Panasonic 12-32 | 25mm 1.7 | Panasonic Leica 8-18 | Panasonic Leica 100-400 | Godox TT685O speedlite

  
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Evolved ­ Vision
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Aug 29, 2013 15:25 as a reply to  @ bidkev's post |  #2331

Few from me.
This is very nice UWA lens to have.

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First HDR (external link) by Evolved Vision (external link), on Flickr

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The blue night sky (external link) by Evolved Vision (external link), on Flickr

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yipDog ­ Studios
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Aug 29, 2013 16:26 |  #2332

Evolved Vision wrote in post #16251072 (external link)
Few from me.
This is very nice UWA lens to have.

QUOTED IMAGE
IMAGE LINK: http://www.flickr.com …evolvedvision/9​577464104/  (external link)
First HDR (external link) by Evolved Vision (external link), on Flickr

QUOTED IMAGE
IMAGE LINK: http://www.flickr.com …evolvedvision/9​615734492/  (external link)
The blue night sky (external link) by Evolved Vision (external link), on Flickr

Very nice!


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Evolved ­ Vision
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Aug 30, 2013 01:46 |  #2333

yipDog Studios wrote in post #16251243 (external link)
Very nice!

Thanks,
I'm glad to share them.


Canon 5D MkII | Samyang 14 f2.8 | Samyang 24 f1.4 | Samyang 35 f1.4 | Samyang 85 f1.4 | Canon 100 f2.8 USM Macro | Canon 200 f2.8L II | 1.4X TC
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MattD
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Aug 30, 2013 03:39 |  #2334

dog walking in the fog at the Norfolk Broads.

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Moin
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Aug 30, 2013 12:27 |  #2335

Finally, pulled the plug on this lens.


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Charlie
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Aug 30, 2013 13:29 |  #2336

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Moin
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Aug 30, 2013 13:53 |  #2337

Testing this lens. I'm not sure what I'm doing wrong at night shots. All the shots under 500 ISO are dark'ish? doesn't matter if it's 20 sec / 30 sec shutter speed.

(SOOC, only resized)

F/16
Set the aperture ring to infinity

IMAGE: http://i.imgur.com/iZLbhpG.jpg

Same settings, except I boosted the ISO

IMAGE: http://i.imgur.com/lMlNAjh.jpg

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Evolved ­ Vision
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Aug 30, 2013 14:00 |  #2338

Moin wrote in post #16253925 (external link)
Testing this lens. I'm not sure what I'm doing wrong at night shots. All the shots under 500 ISO are dark'ish? doesn't matter if it's 20 sec / 30 sec shutter speed.

(SOOC, only resized)

F/16
Set the aperture ring to infinity

Same settings, except I boosted the ISO

I would say you are just way underexposed.
Try larger aperture like f4-f8.
Try upping ISO to something like 1600-6400.
Or use bulb shutter release and let shutter be open for a few minutes.

Play with those settings and i think you will figure it out.


Canon 5D MkII | Samyang 14 f2.8 | Samyang 24 f1.4 | Samyang 35 f1.4 | Samyang 85 f1.4 | Canon 100 f2.8 USM Macro | Canon 200 f2.8L II | 1.4X TC
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Charlie
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Aug 30, 2013 14:04 |  #2339

Moin wrote in post #16253925 (external link)
Testing this lens. I'm not sure what I'm doing wrong at night shots. All the shots under 500 ISO are dark'ish? doesn't matter if it's 20 sec / 30 sec shutter speed.

(SOOC, only resized)

F/16
Set the aperture ring to infinity

I cant use this lens on manual mode live view on my 6D. Tried it briefly, and would only get a black screen, however, it works fine on AV mode.

set your ISO to whatever (or Auto), and aperture on lens, and camera figures out the shutter speed needed.


Sony A7riii/A9 - FE 12-24/4 - FE 24-240 - CV 21/3.5 - FE 28/2 - FE 35/2.8 - FE 50/1.8 - FE 85/1.8 - EF 135/1.8 Art - F 600/5.6 - CZ 100-300 - Astro Rok 14/2.8 - Tamron 28-75/2.8 RXD, 70-200/2.8 VC

  
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Moin
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Aug 30, 2013 14:49 |  #2340

Evolved Vision wrote in post #16253941 (external link)
I would say you are just way underexposed.
Try larger aperture like f4-f8.
Try upping ISO to something like 1600-6400.
Or use bulb shutter release and let shutter be open for a few minutes.

Play with those settings and i think you will figure it out.

I think that'll do. I didn't experiment much since I had to go eat. Test it on brother's kids.. It's tack sharp! Thanks

P.s: Regarding the lens profile thingy, I chose Canon's 14mm and it kind of worked. Distortion's gone.


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Samyang Rokinon Vivitar 14 2.8 lens
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