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Archive 2011 · Rokinon 85mm vs Zeiss Quick Test
  
 
sebboh
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p.3 #1 · Rokinon 85mm vs Zeiss Quick Test


AhamB wrote:
No. Molded aspherics are pressed in a mold and they are the ones showing the onion rings in the bokeh, due to the spiral groove pattern in the mold. There are aspherics that are grinded, which is more difficult/expensive to repeat than reusing a mold.
Then there are composite aspherics that consist of a spherical element with a plastic layer that makes it aspherical.


ah, i thought molded aspherics were the same as composite aspherics. thanks.



May 03, 2011 at 07:18 PM
edwardkaraa
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p.3 #2 · Rokinon 85mm vs Zeiss Quick Test


Lens manufacturers use plastic elements instead of mineral because they are cheaper, lighter and easier to produce. When new, they are as good, or almost as good as mineral glass, but they deteriorate quickly with time.


May 03, 2011 at 07:22 PM
Bifurcator
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p.3 #3 · Rokinon 85mm vs Zeiss Quick Test


Your last test, the distance, and maybe the medium distance test too is WAY WAY over-sharpened. IMO this makes those tests kinda worthless.


Ed, how quickly is "quickly"? There's an OM plastic lens from the late 70's or early 80's that tests very well even today.




May 04, 2011 at 11:08 AM
edwardkaraa
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p.3 #4 · Rokinon 85mm vs Zeiss Quick Test


Which lens do you mean? I am not aware of plastic lenses in that period of time. Plastic elements afaik started mainly with AF for obvious reasons.


May 04, 2011 at 11:19 AM
flashinm
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p.3 #5 · Rokinon 85mm vs Zeiss Quick Test


Bifurcator wrote:
Your last test, the distance, and maybe the medium distance test too is WAY WAY over-sharpened. IMO this makes those tests kinda worthless.

Ed, how quickly is "quickly"? There's an OM plastic lens from the late 70's or early 80's that tests very well even today.



I didn't sharpen any of the images. Not sure what you're seeing.



May 04, 2011 at 02:03 PM
AhamB
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p.3 #6 · Rokinon 85mm vs Zeiss Quick Test


I think Bif is referring to the edge contrast on the windows. It kinda looks like there are some halos, but other than that I see no signs of (over)sharpening.


May 04, 2011 at 02:10 PM
Gunzorro
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p.3 #7 · Rokinon 85mm vs Zeiss Quick Test


I just ordered the Bell & Howell labeled version of this Samyang lens on eBay. I'm curious to see how it does, as I don't have a fast 85mm in my collection.

Are there any other user reports or updates anyone can make?

Thanks!



Oct 02, 2011 at 11:48 PM
sebboh
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p.3 #8 · Rokinon 85mm vs Zeiss Quick Test


man, this is the third samyang 85/1.4 comparison thread i've seen on this forum where it matches or beats (in this case) either the canon or zeiss for wide open sharpness at portrait distances. they always end with people pointing out tiny little flaws in the test and i continue to see lots of talk about the samyang being weak wide open though. i don't get it.

anyway, i dig the sissy bokeh. i think the either old or new zeiss 35/1.4, sigma 50/1.4, and the samyang 85/1.4 make an excellently sissy holy trinity.



Oct 03, 2011 at 12:21 AM
plasticmotif
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p.3 #9 · Rokinon 85mm vs Zeiss Quick Test


Seb,

I'm hoping the 24 1.4 is good from samyang. The 35 certainly is

'Yang 24/1.4, Sigma 50, 'Yang 85 would indeed be good



Oct 03, 2011 at 12:33 AM
galenapass
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p.3 #10 · Rokinon 85mm vs Zeiss Quick Test


I did not find it to be weak wide open. I think people just have a hard time actually believing that a lens so reasonably priced can be so sharp.




Oct 03, 2011 at 12:33 AM
 

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galenapass
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p.3 #11 · Rokinon 85mm vs Zeiss Quick Test


plasticmotif wrote:
Seb,

I'm hoping the 24 1.4 is good from samyang. The 35 certainly is

'Yang 24/1.4, Sigma 50, 'Yang 85 would indeed be good


That's what I am waiting for! For may years the 24mm was my most used lens (Nikkor 24 2.8). If the new 24mm is in the same ball park as other Samyang/Rokinon releases I would be ecstatic.



Oct 03, 2011 at 12:36 AM
Krosavcheg
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p.3 #12 · Rokinon 85mm vs Zeiss Quick Test


Great thread!
Thank you very much for taking your time and doing this test.
If not, this really saved me from buying Zeiss 85..

Best Regards



Oct 03, 2011 at 12:46 AM
FlyPenFly
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p.3 #13 · Rokinon 85mm vs Zeiss Quick Test


Ergonomically, it kind of feels like a low quality lens. I ended up getting rid of mine because it simply inspired no joy or fun in using the lens.

Can't argue with the results though!



Oct 03, 2011 at 01:24 AM
sebboh
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p.3 #14 · Rokinon 85mm vs Zeiss Quick Test


FlyPenFly wrote:
Ergonomically, it kind of feels like a low quality lens. I ended up getting rid of mine because it simply inspired no joy or fun in using the lens.

Can't argue with the results though!


the body definitely looks and feels plasticky compared to an oldschool manual lens or a high end autofocus lens, but i've been pretty happy with the feel of the focus ring (certainly no match in that respect for my leica or rokkor lenses though).



Oct 03, 2011 at 02:19 AM
edwardkaraa
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p.3 #15 · Rokinon 85mm vs Zeiss Quick Test


wayne seltzer wrote:
The new Zeiss 35/1.4 has very smooth bokeh and the old contax n 85/1.4 has smooth bokeh.
Also Sony-Zeiss ZA 135/1.8 has very smooth bokeh.


The ZA 85 combines very sharp WO performance and very smooth bokeh as well. The ZA 24 has also the same characteristics so I guess it would be safe to say all three ZA primes have been designed with smooth bokeh and WO performance in mind.



Oct 03, 2011 at 10:12 AM
johntodd
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p.3 #16 · Rokinon 85mm vs Zeiss Quick Test


As an owner of the Zeiss C/Y, I'm always interested in this kind of test. What I see as missing, particularly when phrases like 'portrait lens' are used, is a comparison of the lenses used to shoot portraits! Ultimate sharpness may not be the key property of portrait lenses.


Oct 03, 2011 at 01:17 PM
FlyPenFly
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p.3 #17 · Rokinon 85mm vs Zeiss Quick Test


Ultimately a can of paint while good for showing high contrast borders doesn't have the intricate details and 3D depth of a face.


Oct 03, 2011 at 02:00 PM
FlyPenFly
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p.3 #18 · Rokinon 85mm vs Zeiss Quick Test


Also if you look at the F1.4 close up of the bricks, it seems the focus on the Zeiss is different than the focus on the Rokinon. Looking at them side by side, it appears the rear of it is in focus in the Roki and out of focus on the Zeiss. This might also explain why there is far more CA on the Zeiss as well.

There also appears to be more detail and micro contrast on the Zeiss if you look at the second middle brick to the right at the very front of the crop.



Oct 03, 2011 at 02:15 PM
Gunzorro
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p.3 #19 · Rokinon 85mm vs Zeiss Quick Test


Thanks all! This is exactly the kind of information I've been interested in.

I agree, more comparison examples would be welcome.

I just ordered a set of extention tubes (without electrical contacts) to try this a close-focus (not real macro). I remembered that my Canon EF ext tubes won't work properly with a non-EF contact lens (error signal). I can also use these on my C//Y Zeiss and Leica R lenses. Also ordered a 72mm screw-in hood & cap (same as I've done with the C/Y Zeiss 50 and 80-200).

Getting excited to try this lens!



Oct 03, 2011 at 02:56 PM
Greggf
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p.3 #20 · Rokinon 85mm vs Zeiss Quick Test


OK....I just received my Zeiss C/Y 85 1.4 MMJ from a fellow FM'er , and I have been doing some tests, quite like a few people here have been doing. I love teh lens, very much, but is it worth it to keep over the Rokinon 85 1.4 I already have?? I haven't answered that question, but I thought I would put up a link to the first set of comparison photos between the two. These pictures haven't been altered, sharpened, or white balanced...anything, except loaded as a .dng file into LR 3.5, and then exported out straight into picasaweb as a 100% .jpg. Open in separate tabs and compare. I'm interested in what everyone thinks(between the lenses...not the pics!!)
Focus point on the eye of the frog...LV with 2 sec timer and camera on top of the hot tub(stable)
Gregg
https://picasaweb.google.com/112876940890442133557/CY8514MMJVsRokinon8514?authuser=0&feat=directlink

Edited on Oct 04, 2011 at 05:47 AM · View previous versions



Oct 04, 2011 at 05:33 AM
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