NikonGear'23
Gear Talk => Lens Talk => Topic started by: stenrasmussen on September 30, 2016, 14:15:31
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Off to collect a sample...will post samples later.
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Excellent, very interested in your findings.
If the optics can match the feature set you should have a winner :)
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It'll be nteresting to see how a production sample works.
Sten, did you get the Irix 15mm from a Norwegian dealer?
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So far:
Beautiful packaging, sexy little lens bag, Zeiss-like construction. Very handy infinity focus click "stop".
Slight barrel distortion (nothing like the Samyang's Poirot one).
Ready to check coma behaviour soon.
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It'll be nteresting to see how a production sample works.
Sten, did you get the Irix 15mm from a Norwegian dealer?
I got it from my dealer here in Stavanger. They have 1 in Nikon and 2 in Canon mount left.
Btw, this is the Blackstone version.
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Would love to find out that all the smples thus far were from bad samples, looking forward to your results.
Also, do let us know how serviceable the lens seems to be.
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Oh. :) Waiting for your "Review".
Harald
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First out the obligatory product shots and a comparison to the Samyang 14/2.8:
As said, the workmanship is stellar. The focus lock mechanism is a neat feature...although I am not sure it will be used much.
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Distortion at close range (around 1.5m). Same processing, the Samyang has a different (warmer) color rendition.
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The focus lock mechanism is a neat feature...although I am not sure it will be used much.
With the Samyang 14/2.8 I used to tape the focus to fixate infinity focus for startrails. The slightest tough on the focus ring would move it away from infinity resulting in soft images, a rather unpleasant surprise after an hour of waiting.
The focus ring on the Irix lenses have a click at infinity though, if thats works as designed setting the focus at infinity can be done blindfolded. I suspect though that the Irix lenses can overshoot infinity focus because there will be some focus shift under extreme temperatures, if so the focus lock might prove helpful once more.
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Distortion at close range (around 1.5m). Same processing, the Samyang has a different (warmer) color rendition.
Like with the 11mm Irix there's some barrel distortion but this is easily fixed in post processing.
The Sammy on the other hand has some extreme moustache distortion which is harder to fix, in nature shots this never bothered me btw.
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With the Samyang 14/2.8 I used to tape the focus to fixate infinity focus for startrails. The slightest tough on the focus ring would move it away from infinity resulting in soft images, a rather unpleasant surprise after an hour of waiting.
The focus ring on the Irix lenses have a click at infinity though, if thats works as designed setting the focus at infinity can be done blindfolded. I suspect though that the Irix lenses can overshoot infinity focus because there will be some focus shift under extreme temperatures, if so the focus lock might prove helpful once more.
You are absolutely right about infinity fixing JA. The Irix does enable beyond infinity focus. I need to explore the lens a little more before making any judgement. Will head out to the beaches tonight for some dusk/night shots.
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Like with the 11mm Irix there's some barrel distortion but this is easily fixed in post processing.
The Sammy on the other hand has some extreme moustache distortion which is harder to fix, in nature shots this never bothered me btw.
Yup!
The Irix is the Obelix shape whereas the Sammy is Hercule Poirot's facial hair thingy. Obelix is easy, Poirot not so much.
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Irix distortion is barrel type yes but only for the far corners as far as I could see at Photokina.
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The size of it, huge, dwarfs the Df :)
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The front element is much smaller on the new Irix 15/2.8, and the distortion seems lower.
is now the simple barrel type. All in all this is a leap forward for super wide angles, but does the image quality stack up?
Is the filter diameter 95mm?
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What I was trying to point out is that is not simple barrel type distortion,,,
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Aah, I may have misread the image of Sten's bookshelf. The camera appears ever so slightly tilted downwards and swung slightly to the right.
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The peripheral light fall-off is severe. Does anyone have images from this lens on a DX camera?
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Aah, I may have misread the image of Sten's bookshelf. The camera appears ever so slightly tilted downwards and swung slightly to the right.
I see it is a little downward but the distortion is pretty even barrel. Look at the top of the shelves.
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The peripheral light fall-off is severe. Does anyone have images from this lens on a DX camera?
I intend to get the light fall off exemplified. I will be shooting this on my D500 as well.
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A couple of shots at f/2.4. I had hoped to get me arse to the beach today but a beer took priority ;D
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Hi,
Can you Upload both as Raw? After the Beer
.. ;)
Harald
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Hrmpf...
I thought the new kid would best the Sammy at most things. What is certainly does worse is controlling flare!
Here is an example with both lenses at full opening. I know, a bit unrealistic test but still...
Look at the series, f/2.4, f/4, f/5.6, f/8, f/11 and f/16.
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Hi,
Can you Upload both as Raw? After the Beer
.. ;)
Harald
Sorry Harald, saw this request just now. I cannot upload due to the fact that the image doesn't exist anymore. I reformatted the card. Will upload a new from later tonight :)
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For comparison, here's the Sammy at f/16.
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One shot with the D500 at f/2.4.
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I am not impressed about Flare Resistance. Seems as worse as my 28-45 which is 40 years Old... :D
Harald
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I love the Lord Of The Ring effect. :D But I may not buy the lens for the effect. Apparently Irix handles the flare quite nicely, unless the strong light source is in the dead center.
I wonder why the sun image is smeared upwards and downwards when the lens is not stopped far down?
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Wow, I was about to comment about why Nikon can't make a super-wide prime like this, but they would never let a lens design get out the door with that kind of flare problem. Also the sun stars pretty much suck, both of which would be reasons not to buy for me.
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Wow, I was about to comment about why Nikon can't make a super-wide prime like this, but they would never let a lens design get out the door with that kind of flare problem. ...
The venerable Nikkor QDC 15 mm f/5.6 had a similar flare, although "cleaner" as it was just a narrow blue circle not red + green.
Probably reflections off edges of an element inside.
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For night time photography I actually like the Irix better than the Samyang.
Two Three shots from my test tour this evening:
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The venerable Nikkor QDC 15 mm f/5.6 had a similar flare, although "cleaner" as it was just a narrow blue circle not red + green.
Probably reflections off edges of an element inside.
Yes, but this new lens was most-likely computer designed while the 15/5.6 is how many years (decades) old and was likely hand-designed in the late 60's early 70's?
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Here are two shots with the D500. As can be seen in the first image the lens is a little soft at the right side.
Will try my dealer's second copy.
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New copy is better.
Night shot at f/8, backed by the Df
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Thanks for sharing your first impressions Sten.
I quite like the results. It certainly depends on usage.
What would your main usage be?
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Thanks for sharing your first impressions Sten.
I quite like the results. It certainly depends on usage.
What would your main usage be?
Night time shots is what my main intentions are. But as I now have a good copy I might expand on this. Here's a shot from this morning (f/4).
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A shot with the Irix on the D500.
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Sten, are there any improvements in flare performance with the second copy?
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Sten, are there any improvements in flare performance with the second copy?
Not that I can see.
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Hi,
and your thoughts compared to the Samyang? :)
Harald
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Hi,
and your thoughts compared to the Samyang? :)
Harald
Except for the flare (which isn't a problem in most situations) I like it better than the Samyang. The lens is really at home on my D500. So I have a very good 22mm there.
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Hi Sten,
so i will have a try the next time. :) Thanks for sharing your experience!
Harald
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A few more with this lens.
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Very nice samples Sten! Looks really good ;)
This is of cause also very dependent on PP - But It appears you also can see the high contrast and very saturated images from the lens as well as what we found at Photokina.
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A few more with the Irix. The lens is slowly growing on me to the extent that I will keep it. Early trials also suggest is does really well in the infrared domain.
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Seems your present copy is a good performer indeed. I'm worried about the maker's consistency and quality control though, as you got a bad sample first, didn't you?
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Seems your present copy is a good performer indeed. I'm worried about the maker's consistency and quality control though, as you got a bad sample first, didn't you?
It performs well. The first sample wasn't really bad but the nerd in me just wanted the best copy. One thing is for sure; the build quality is marvelous! I'll pop an IR image in here soon.
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Well, the fact you perceive quality difference between samples should trigger an alarm bell or two.
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Sorry about the repeating and boring scene...
Infrared 720nm modded D5300.
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Well, the fact you perceive quality difference between samples should trigger an alarm bell or two.
Buyer beware... ;)
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I have the impression of an IR hot spot?
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I have the impression of an IR hot spot?
That must be the processing. Here's a shot at f/13 kept dark to try and emphasize a potential hot spot. But, with different lighting and a different camera it might happen.
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Thanks for the updated information Sten! Enjoy ;)
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This is very informative, Sten! Thank you! LZ
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A little comparison of corner performance with the AF-S Nikkor 10-24/3.5-4.5 on the D500 and the Df. The scene was focused on manually via LV. The Irix wins.
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Very clearly indeed! Thanks Sten
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For anyone who has An Irix 11 or 15 and uses Photoshop or Lightroom, lens profiles have been released. Here is the download page: http://en.irixlens.com/downloads (http://en.irixlens.com/downloads)
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Just seen someone here in NL offered his one for sale on Facebook.
Unfortunately the aperture control is done electronic so will not work on my F2AS :-\
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For night time photography I actually like the Irix better than the Samyang.
Two Three shots from my test tour this evening:
It may be just a test shot but I like the 3rd one very much. I think I'd take a thin slice off the top.
No I'd take a bit more off the top and make the photography a very wide landscape. The curve over the white building is very graceful.
Dave
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Apologies for digressing on the thread subject, but I've finally got round to buying the Irix 11mm f/4, lovely lens and pretty fine build quality (and it comes in a great tin!). Haven't used it for much yet but happy to share some initial shots if anyone's interested.
John
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Apologies for digressing on the thread subject, but I've finally got round to buying the Irix 11mm f/4, lovely lens and pretty fine build quality (and it comes in a great tin!). Haven't used it for much yet but happy to share some initial shots if anyone's interested.
John
Would like to see your results with the lens, especially architectural subjects if you have them.
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Apologies for digressing on the thread subject, but I've finally got round to buying the Irix 11mm f/4, lovely lens and pretty fine build quality (and it comes in a great tin!). Haven't used it for much yet but happy to share some initial shots if anyone's interested.
John
John, if you would share the images of your Irix 11mm f/4, it would be nice to start a dedicated thread for the lens. I'm looking forward to that!