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Author Topic: Samyang 14mm f/2.8 IF ED UMC  (Read 34007 times)

CarlTN

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Re: Samyang 14mm f2.8
« Reply #30 on: June 26, 2013, 01:09:09 PM »


I did just say it trounces the 14L and is comparable to the Nikon 14-24...that should qualify the lens as adequate.  The Samyang/Rokinon/other sub-brand 14mm is extremely sharp in the center at all aperture settings, it is only the extreme corners that dip into the "only ok" territory.  Chromatic aberrations are very well controlled at all apertures.  The only serious limitation (aside from being an all manual lens) is distortion, which as I mentioned above, is mostly only a problem for scenes with straight lines across the scene (horizon, etc.), which again, is correctable in post.  Granted, there may be sample variation issues, but my copy is stellar.  I would recommend using live view for best results though...even with a good viewfinder it can be tricky to tell if you are perfectly focused at such extremely wide focal lengths.

Feel free to listen to other opinions, but they will probably confirm what I just stated.
http://www.photozone.de/canon_eos_ff/532-samyang14f28eosff
http://www.lenstip.com/239.11-Lens_review-Samyang_14_mm_f_2.8_ED_AS_IF_UMC_Summary.html

Thanks again for the info, no need to get testy (if you did).  The Nikon supposedly is sharp to the corners at f/2.8.  If the Samyang is not, then how closely is it really comparable to it?  I realize there is likely sample variation, I just meant, how sharp is yours in the corners at or near f/2.8?  Say at f/3.5?

And I thought the Canon 14mm L was supposed to be great, it's just priced way too high.  I personally would buy the Zeiss 15mm before I bought the Canon, if I was going to spend that much...even though the Zeiss is a bit more.

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Re: Samyang 14mm f2.8
« Reply #30 on: June 26, 2013, 01:09:09 PM »




mrsfotografie

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Re: Samyang 14mm f2.8
« Reply #34 on: June 26, 2013, 01:28:53 PM »
I have been considering this lens for months but couldn't quite make a decision.  What bothers me the most is the concern of complex distortion.  I'm glad that it may be correctable post, but it'd be nice if someone could post some pre and post process pictures. 

The other option is 17-40 which is a safer choice. At least the resale value is good. I tried it once. Corners seem a little fuzzy.

I have both the 17-40 L and the Samyang 14 mm. No direct comparison is possible because 17 mm is nowhere near as wide as 14 mm ;)

Btw the 14mm SY  rules, especially with AF confirmation chip (I glued one onto the back of my mount and calibrated it just so :) )
5D3, 5D2, Sony α6000, S90 | SY14 f/2.8, Ʃ20 f/1.8, 24 f/2.8, 35 f/2, Ʃ35 f/1.4A, 50 f/1.8 I, Ʃ50 f/1.4 EX, 100L Macro, 17-40L, 24-105L, 70-200 f/2.8L IS II, 1.4x II, 70-300L, 100-400L | E-mount: SY12 f/2, Ʃ19 & 30 f/2.8 EX DN, 16-70 ZA OSS, 55-210 OSS, Metabones SB | FT-QL, AE-1P | FD(n) & FL lenses

Standard

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Re: Samyang 14mm f2.8
« Reply #35 on: June 26, 2013, 01:37:35 PM »
Quote
I too would like to see pre and post process correction of the mustache distortion of this Samyang.  I assume similar software is used to correct mustache distortion of other wide primes like the Zeiss 21mm Distagon?

Here's a side-by-side comparison image taken with the Samyang 14mm. Note the mustache distortion. Live View on tripod; 2.5 sec at f/16, ISO 100. This was processed rather quickly. I suspect I could spend a little more time and the ceiling would even be straighter.


sunnyVan

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Re: Samyang 14mm f2.8
« Reply #36 on: June 26, 2013, 01:38:07 PM »
I have been considering this lens for months but couldn't quite make a decision.  What bothers me the most is the concern of complex distortion.  I'm glad that it may be correctable post, but it'd be nice if someone could post some pre and post process pictures. 

The other option is 17-40 which is a safer choice. At least the resale value is good. I tried it once. Corners seem a little fuzzy.

I have both the 17-40 L and the Samyang 14 mm. No direct comparison is possible because 17 mm is nowhere near as wide as 14 mm ;)

Btw the 14mm SY  rules, especially with AF confirmation chip (I glued one onto the back of my mount and calibrated it just so :) )


That's what a lot of people say, but does the distortion bother you and how do you correct it?
6D, 24-70 2.8L II, 16-35 F4L IS, 17-40L, 100 2.8L, 70-200L F4 IS, 85 1.8, 135L, Sigma 35 1.4, 600Ex-RT, Rokinon 14mm, EOS M

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Re: Samyang 14mm f2.8
« Reply #36 on: June 26, 2013, 01:38:07 PM »

CarlTN

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Re: Samyang 14mm f2.8
« Reply #37 on: June 26, 2013, 01:38:12 PM »
it optically trounces the 14L
The-Digital-Picture site begs to differ: Below are comparisons at f/2.8 and f/5.6.

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=769&Camera=453&Sample=0&FLI=0&API=0&LensComp=454&CameraComp=453&SampleComp=0&FLIComp=0&APIComp=0

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=769&Camera=453&Sample=0&FLI=0&API=3&LensComp=454&CameraComp=453&SampleComp=0&FLIComp=0&APIComp=3

But could they just have gotten a bad sample of the Samyang?
Have you tried many good copies of 14mm II Canons and you find them worse than Samyang?

Me?  I have never tried either of those.  I am just wanting to know what to buy, at under $750...If I had the "coin" many of you have, I would be paying people to post on this forum for me!  If I hadn't bought a new camera, and a couple of lenses already in the last few months...then I could afford a high dollar wide angle lens.  Of course I would have to just hold it up to paper and let it burn the image on that, because I would have no camera to mount it on...!

CarlTN

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Re: Samyang 14mm f2.8
« Reply #38 on: June 26, 2013, 01:41:37 PM »
Quote
I too would like to see pre and post process correction of the mustache distortion of this Samyang.  I assume similar software is used to correct mustache distortion of other wide primes like the Zeiss 21mm Distagon?

Here's a side-by-side comparison image taken with the Samyang 14mm. Note the mustache distortion. Live View on tripod; 2.5 sec at f/16, ISO 100. This was processed rather quickly. I suspect I could spend a little more time and the ceiling would even be straighter.



Interesting, thank you!  I prefer the color balance and contrast of the uncorrected image better...and yes that is some weird mustache going on.

Like you, I need more time to edit, myself.  I'm supposed to be doing it now, haha...I better sign out of this forum before I become even less productive than I already am, if that's possible!

sunnyVan

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Re: Samyang 14mm f2.8
« Reply #39 on: June 26, 2013, 01:42:58 PM »
Another problem is that it doesn't take filters. If I cant use ND filters I cant do long exposure. 
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tron

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Re: Samyang 14mm f2.8
« Reply #40 on: June 26, 2013, 01:54:16 PM »
it optically trounces the 14L
The-Digital-Picture site begs to differ: Below are comparisons at f/2.8 and f/5.6.

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=769&Camera=453&Sample=0&FLI=0&API=0&LensComp=454&CameraComp=453&SampleComp=0&FLIComp=0&APIComp=0

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=769&Camera=453&Sample=0&FLI=0&API=3&LensComp=454&CameraComp=453&SampleComp=0&FLIComp=0&APIComp=3

But could they just have gotten a bad sample of the Samyang?
Have you tried many good copies of 14mm II Canons and you find them worse than Samyang?

Me?  I have never tried either of those.  I am just wanting to know what to buy, at under $750...If I had the "coin" many of you have, I would be paying people to post on this forum for me!  If I hadn't bought a new camera, and a couple of lenses already in the last few months...then I could afford a high dollar wide angle lens.  Of course I would have to just hold it up to paper and let it burn the image on that, because I would have no camera to mount it on...!
Actually I was lucky! I found a used 14mm 2.8L II in a shop in mint condition for 1000 euros less than the price of the new. Then I brought with me some stuff (3 lenses and a battery pack of my stolen 40D) and I deducted a lot. So I got it for 650 euro  :)

I wasn't looking for it. I was thinking too of Samyang 14 but at the price I got the Canon it was a steal!

Then, I took a look at the-digital-picture and found that comparison which shocked me because truth be told many sites said the Sam is very good.


mrsfotografie

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Re: Samyang 14mm f2.8
« Reply #41 on: June 26, 2013, 02:05:31 PM »
I have been considering this lens for months but couldn't quite make a decision.  What bothers me the most is the concern of complex distortion.  I'm glad that it may be correctable post, but it'd be nice if someone could post some pre and post process pictures. 

The other option is 17-40 which is a safer choice. At least the resale value is good. I tried it once. Corners seem a little fuzzy.

I have both the 17-40 L and the Samyang 14 mm. No direct comparison is possible because 17 mm is nowhere near as wide as 14 mm ;)

Btw the 14mm SY  rules, especially with AF confirmation chip (I glued one onto the back of my mount and calibrated it just so :) )


That's what a lot of people say, but does the distortion bother you and how do you correct it?

I can generally live with the distortion because I don't use this lens for serous architecture work. In fact I like the creativity it offers when trying for exaggerated lines, even in architectural work.

When shooting subjects close-up the distortion can also be used in a positive way because it emphasizes the subject in the middle of the frame. This exaggerates the perspective even more; really makes them 'pop' out of their environment.

For critical applications, lens correction profiles exist for Adobe Photoshop / Camera RAW. I've attached two of them for the 5D MkII and others are available on the web.

To install:

Quote
For 32bit operating system copy the file to:  "C: \ Documents and Settings \ Username \ Application Data \ Adobe \ CameraRaw \ lens profiles \ 1.0"

For 64bit operating system copy the file to:   "C:\ ProgramData \ Adobe \ CameraRaw \ LensProfiles \ 1.0 \ Canon"
« Last Edit: June 26, 2013, 02:07:53 PM by mrsfotografie »
5D3, 5D2, Sony α6000, S90 | SY14 f/2.8, Ʃ20 f/1.8, 24 f/2.8, 35 f/2, Ʃ35 f/1.4A, 50 f/1.8 I, Ʃ50 f/1.4 EX, 100L Macro, 17-40L, 24-105L, 70-200 f/2.8L IS II, 1.4x II, 70-300L, 100-400L | E-mount: SY12 f/2, Ʃ19 & 30 f/2.8 EX DN, 16-70 ZA OSS, 55-210 OSS, Metabones SB | FT-QL, AE-1P | FD(n) & FL lenses

sunnyVan

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Re: Samyang 14mm f2.8
« Reply #42 on: June 26, 2013, 02:13:27 PM »
I have been considering this lens for months but couldn't quite make a decision.  What bothers me the most is the concern of complex distortion.  I'm glad that it may be correctable post, but it'd be nice if someone could post some pre and post process pictures. 

The other option is 17-40 which is a safer choice. At least the resale value is good. I tried it once. Corners seem a little fuzzy.

I have both the 17-40 L and the Samyang 14 mm. No direct comparison is possible because 17 mm is nowhere near as wide as 14 mm ;)

Btw the 14mm SY  rules, especially with AF confirmation chip (I glued one onto the back of my mount and calibrated it just so :) )


That's what a lot of people say, but does the distortion bother you and how do you correct it?

I can generally live with the distortion because I don't use this lens for serous architecture work. In fact I like the creativity it offers when trying for exaggerated lines, even in architectural work.

When shooting subjects close-up the distortion can also be used in a positive way because it emphasizes the subject in the middle of the frame. This exaggerates the perspective even more; really makes them 'pop' out of their environment.

For critical applications, lens correction profiles exist for Adobe Photoshop / Camera RAW. I've attached two of them for the 5D MkII and others are available on the web.

To install:

Quote
For 32bit operating system copy the file to:  "C: \ Documents and Settings \ Username \ Application Data \ Adobe \ CameraRaw \ lens profiles \ 1.0"

For 64bit operating system copy the file to:   "C:\ ProgramData \ Adobe \ CameraRaw \ LensProfiles \ 1.0 \ Canon"

Interesting.  Thank you.
6D, 24-70 2.8L II, 16-35 F4L IS, 17-40L, 100 2.8L, 70-200L F4 IS, 85 1.8, 135L, Sigma 35 1.4, 600Ex-RT, Rokinon 14mm, EOS M

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Re: Samyang 14mm f2.8
« Reply #42 on: June 26, 2013, 02:13:27 PM »

The Bad Duck

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Re: Samyang 14mm f2.8
« Reply #43 on: June 26, 2013, 03:26:23 PM »
It´s a fun lens. My copy is great. I use it quite a bit stopped down to get best results and a huge DoF. That way the focusing is less critical.

The distortion is rahter hefty and it can cause problems like in the first of my photos. In most cases it is not an issue for my usage.

Sure, if the Canon 14 L was only twice as expensive as the Samyang, I would probably get the Canon but right now there is absolutely no reason for me to invest in the L. I´m awaiting the rumored superultrawidezoom however, that will be interesting (and probably too expensive the first and second year).


CarlTN

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Re: Samyang 14mm f2.8
« Reply #44 on: June 27, 2013, 02:05:11 PM »
It´s a fun lens. My copy is great. I use it quite a bit stopped down to get best results and a huge DoF. That way the focusing is less critical.

The distortion is rahter hefty and it can cause problems like in the first of my photos. In most cases it is not an issue for my usage.

Sure, if the Canon 14 L was only twice as expensive as the Samyang, I would probably get the Canon but right now there is absolutely no reason for me to invest in the L. I´m awaiting the rumored superultrawidezoom however, that will be interesting (and probably too expensive the first and second year).

I like most of those shots, but you should have tried to correct the mustache distortion in the top image.  The tree is a great compostion, but I would have fiddled with the green palette to make it more varied.  Not trying to nitpick though!

I am wanting to shoot Milky Way images, besides daytime use.  So I would prefer if it doesn't have much CA and is reasonably sharp, at least to the borders, if not the corners...and at least by f/3.5, if not wide open.

If it is only acceptable by f/5.6 or 6.3 at the borders, that wouldn't be good for 45 seconds or shorter night exposures...because ISO would be pushed from 3200 to 10,000 or higher...

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Re: Samyang 14mm f2.8
« Reply #44 on: June 27, 2013, 02:05:11 PM »