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Author Topic: Irix Announces 15mm f/2.4 Lenses for Canon EF  (Read 43882 times)

Diltiazem

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Re: Irix Announces 15mm f/2.4 Lenses for Canon EF
« Reply #30 on: March 20, 2016, 03:16:38 AM »
Looks sexy, but MTF doesn't look that impressive.

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Re: Irix Announces 15mm f/2.4 Lenses for Canon EF
« Reply #30 on: March 20, 2016, 03:16:38 AM »

GuyF

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Re: Irix Announces 15mm f/2.4 Lenses for Canon EF
« Reply #31 on: March 20, 2016, 05:29:36 AM »
My BS detector went into overdrive at "special neutrino coating"....

Yup mine too. Mind you, since billions of neutrinos pass through us every second, it's probably fair to say even my socks are coated in the stuff.  ::)

Then again, they probably go round the back of CERN, do the "secret knock" on the door then ask for Big Dave and get handed a bucket of special sticky neutrinos to paste onto their lenses. Could happen.....
« Last Edit: March 20, 2016, 05:48:22 AM by GuyF »

Antono Refa

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Re: Irix Announces 15mm f/2.4 Lenses for Canon EF
« Reply #32 on: March 20, 2016, 05:47:29 AM »
damn... this lense looks awesome!! "rear gelatin filter slot" :O... why there isn't a Canon lense with it (e.g. the 11-24?!)

Yeah, the price would be interesting..but if its stellar and under Canons average wide angle price or little bit higher I think that would be ok.

Is this Samyang?
It's a new Swiss brand.

€dit: okay the two wide angle lenses of Canon (11-24 & 14 2.8) have rear filter mounts.

As do the 15mm f/2.8 fisheye, 8-15mm f/4 fisheye, 16-35mm f/2.8, and 17-40mm f/4.

nhz

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Re: Irix Announces 15mm f/2.4 Lenses for Canon EF
« Reply #33 on: March 20, 2016, 06:21:49 AM »
I have just returned from the Photography Show. Final price is not decided, but estimated as 680 Euros (I home that I remembered it correctly).

Also they had 11mm f/4 behind a glass, but soon to be announced. - See the CR facebook page - there is a photo of the 11mm.

There is also a Venus Optics Laowa 12mm f/2.8 in the pipeline ... interesting how there suddenly is a flurry of interest in somewhat affordable SWA primes.

Maximilian

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mb66energy

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Re: Irix Announces 15mm f/2.4 Lenses for Canon EF
« Reply #35 on: March 20, 2016, 09:28:16 AM »
Looks sexy, but MTF doesn't look that impressive.

Their MTF graph is different to what is normally shown. I'm not sure how to read/use it.

You have to read the coordinates: curve colors stand for distance from lens axis in image plane.
Than you have to look the MTF value depending on the desired Lines/mm value. Canon uses 10 or 30 Lines/mm.

As a physicist and physics/mathematics teacher I have some understanding about reading graphs but just for me it is easier to type the data into openoffice and make a simple plot - see attached image. (y-Axis: MTF value, x-axis: distance from center, values are approximate values read from irix' graph)

edit: values taken from the following graph of the irix web page: http://irixlens.com/dist/img/mtf.jpg

« Last Edit: March 20, 2016, 09:30:50 AM by mb66energy »
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NorbR

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Re: Irix Announces 15mm f/2.4 Lenses for Canon EF
« Reply #36 on: March 20, 2016, 09:34:06 AM »
I am sure I would not pay 680 Euros just because it has cool styling but that's just me.  :P

For me it has a bit more that cool styling. As a lens that I'd use primarily for astro/night sky pictures, it has two very useful features:
- focus lock ring (focus once, lock it in place, no more "oops I bumped it I have to do it again")
- fluorescent markings on the lens (that one might be more gimmicky, but could also be genuinely useful)

So I'm intrigued ... and my Samyang 14mm is starting to feel insecure ...

By the way, where does the price estimate of 680 euros come from? I couldn't find it anywhere other than here, did someone hear it directly from Irix?
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Re: Irix Announces 15mm f/2.4 Lenses for Canon EF
« Reply #36 on: March 20, 2016, 09:34:06 AM »

Haydn1971

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Re: Irix Announces 15mm f/2.4 Lenses for Canon EF
« Reply #37 on: March 20, 2016, 11:22:50 AM »
Blurb is talking about being designed for he new generation of 50mpx+ sensors, I'm not expecting this to be a bad lens, something balanced between Samyang value and Zeiss quality, with pricing inbetween - I'd expect to see a series of primes over the next few years at standard focal lengths - given Canons lacklustre drive to fill the 50mm & 85mm markets with new fast primes, I'd hope they would offer up a good target for Irix next, followed up with 24, 35 and 135 maybe...    Bingo, new boy in town, move over Zeiss !
Regards, Haydn

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clicstudio

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Re: Irix Announces 15mm f/2.4 Lenses for Canon EF
« Reply #38 on: March 20, 2016, 11:51:11 AM »
This lens is beautiful. I don't know if it's any good but it sure looks good.
I like the fact that Tamron and others are also stepping up their designs in lenses.
This one looks more expensive than it is and that is part of its appeal.
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lholmes549

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Re: Irix Announces 15mm f/2.4 Lenses for Canon EF
« Reply #39 on: March 20, 2016, 11:55:27 AM »
This look like a well built lens and I like the idea of the infinity click if it works as expected.
If the IQ is the same as the Samyang 14, has less coma (some copies are very bad), better QC and less distortion this would be a must have if it was around £500.
The Samyang is a great lens but only if you get a copy that hasn't got misaligned elements or shifted focus ring.
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PhotographyFirst

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Re: Irix Announces 15mm f/2.4 Lenses for Canon EF
« Reply #40 on: March 20, 2016, 01:05:12 PM »
I like how this lens seems to have been designed by people who use lenses, which is evident by the removable hood, hood filter window, front filter threads, rear filter, focus lock, weather sealing, etc.
« Last Edit: March 20, 2016, 03:26:54 PM by PhotographyFirst »

Haydn1971

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Re: Irix Announces 15mm f/2.4 Lenses for Canon EF
« Reply #41 on: March 20, 2016, 02:50:50 PM »
11mm f4.0 on its way too...



Regards, Haydn

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seaquay

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Re: Irix Announces 15mm f/2.4 Lenses for Canon EF
« Reply #42 on: March 20, 2016, 05:02:11 PM »
Not only was my BS detector triggered by the neutrino coating, but also by looking at the company's home page. In fact, they do not even give a postal address which is quite suspective. This led me to do some research:

The company is registered under a mailbox address of "Launchoffice GmbH" (https://www.easymonitoring.ch/handelsregister/th-swiss-ag-1214566 , German). So they probably just have a swiss address for having the "Swiss" in their name, I assume all the work on the lenses is done exclusively in Korea. Head of the company is Hubert Grzegorz Adamczyk, a Polish guy who appears to own a Forex Trading company (http://uk.data.directory/company/08300345/FX+TRADING+LTD) and something which appears to be a trading company in Poland (http://krs-pobierz.pl/next77-i93405 , Polish), no idea if they actually sell anything ...

In conclusion, I am not sure on how serious to take this company. In any case, if these lenses will eventually be sold, do not expect wide technical support by the manufacturer.

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Re: Irix Announces 15mm f/2.4 Lenses for Canon EF
« Reply #42 on: March 20, 2016, 05:02:11 PM »

rs

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Re: Irix Announces 15mm f/2.4 Lenses for Canon EF
« Reply #43 on: March 20, 2016, 05:17:39 PM »
This image was taken with the metal bodied (blackstone) Canon mount lens, wide open. CR2, using DPP, output quality of jpg 4 (to keep it under the 5MB limit). Apparently this lens is 70% to 80% production ready, so I'm surprised they let me shoot with it.

My 5D2 reported f2.5 when wide open. This is apparently an issue with Canon bodies - Nikon will reportedly show f2.4.

For this shot, focusing was set to infinity, where it clicks. You can turn the focus ring beyond the click to focus beyond infinity, to cope with thermal expansion.
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AvTvM

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Re: Irix Announces 15mm f/2.4 Lenses for Canon EF
« Reply #44 on: March 20, 2016, 05:30:16 PM »
Confirmed. The guy is exclusive distributor for Samyang lenses in Poland. Just google it. The company shell used for that Business is called Delta.

This is Samyang sheep in swiss wolves' coat, nothing else. :-)

http://
Not only was my BS detector triggered by the neutrino coating, but also by looking at the company's home page. In fact, they do not even give a postal address which is quite suspective. This led me to do some research:

The company is registered under a mailbox address of "Launchoffice GmbH" (https://www.easymonitoring.ch/handelsregister/th-swiss-ag-1214566 , German). So they probably just have a swiss address for having the "Swiss" in their name, I assume all the work on the lenses is done exclusively in Korea. Head of the company is Hubert Grzegorz Adamczyk, a Polish guy who appears to own a Forex Trading company (http://uk.data.directory/company/08300345/FX+TRADING+LTD) and something which appears to be a trading company in Poland (http://krs-pobierz.pl/next77-i93405 , Polish), no idea if they actually sell anything ...

In conclusion, I am not sure on how serious to take this company. In any case, if these lenses will eventually be sold, do not expect wide technical support by the manufacturer.
« Last Edit: March 21, 2016, 02:50:43 AM by AvTvM »

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Re: Irix Announces 15mm f/2.4 Lenses for Canon EF
« Reply #44 on: March 20, 2016, 05:30:16 PM »