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Irix 15mm f/2.4 : Specifications and Opinions


Irix 15mm f/2.4

The Irix 15mm f/2.4 is a wide-angle lens for FF and APS-C, manufactured from 2016. The focus is done by Manual Focus, it does not have image stabilization. The average price, when it has been added to the JuzaPhoto database, is 667 €;
19 users have given it an average vote of 9.2 out of 10.


If you have used this item, you can add your vote:  

MOUNT

This lens is available with the following mounts:

Canon EF: this lens is compatible with reflex fullframe and APS-C Canon EF.

Nikon F: this lens is compatible with reflex fullframe and APS-C Nikon.



SpecificationsReviewsCompareBuySample Photos




 Specifications
 Focal lenght   15 mm
 Angle of view   110.6°
 Format   FF, APS-C
 Max. aperture   f/2.4
 Aperture blades   9
 Lenses/Groups   15 elements in 11 groups
 Min. focus distance   0.28 meters
 Reproduction ratio  

 Features
 Stabilization   No
 Focus   Manual Focus
 Internal AF   No
 Full Time MF   Yes

 Built and notes
 Tripod ring   No
 Extenders   No
 Filters   95 mm
 Lens hood   Yes, supplied
 Weather sealing   Yes
 Weight   650 g
 Dimensions   114 x 100 mm
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Reviews



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Google Translate  The following opinions have been automatically translated with Google Translate.


avatarsenior
sent on January 14, 2020

Pros: Construction, infinite click, infinite adjustment, lockable window on lampshade to rotate filters, focus lock, f2.4, possibility of front screw and rear jelly filters, little distortion, good flare handling.

Cons: Nothing special.

Opinion: I have the Firefly version, made of plastic but built very well. It is a lens that is seen to have been designed on the basis of the needs of those who make landscape and astrophotography. Infinite click and adjustable infinity allow you to focus on infinity without looking (in the dark, for example); the maf ring has a bulge that allows a safe grip even with heavy gloves (useful for those who take photos in the cold!); The maf block allows you not to inadvertently lose the correct maf, perhaps by screwing an ND1000 filter to the lens after focusing without; The lampshade has an opening and resealable window to rotate a polarizing filter without removing the lampshade itself; You can use filters to the front screw (95mm,a bloodletting, but less than the slab ones) and rear jellies; the firefly version is also tropicalized (albeit with a few less seals). The price used is even more tempting than the new one. A lens for me really well thought out and carefully crafted. The image quality is very good, with excellent sharpness in the center and also at the edges if you close to f5.6-f11 (as you use to do in landscape). At the corners the coma is up to f3.5, then it goes much better, considering that it is a 15mm you can think of cropping away the worst corners in pp. I vignette abundantly up to f5.6, but it is in the norm for a 15mm f2.4 and honestly corrects itself in a click in pp. It distorts little on ff, with simple cushion distortion, even here with two clicks goes into place. The conclusion that this lens leads me to synthesize is: probably the ergonomics of use and some simple found in certain photographic areas count as much as the quality of the image, because it is definitely better to take photos in focus with an Irix taking advantage of the block of the maf dive or adjusting in the field (maybe at - 20 degrees, that a little stand the calibration of the maf) the scale of infinity, rather than taking out-of-focus photos with a Zeiss Batis because you do not realize that you have a little moved the maf guineas by screwing a filtr or ND1000. All at a price that is clearly palatable. Good Irix!

avatarjunior
sent on December 08, 2018

Pros: Screw Filters-sharpness-No Distortion

Cons: If you shoot in backlight can occur in photos the presence of flare that can safely be removed in the development phase

Opinion: I own this lens from April 2018 that I use as wide angle on my Nikon D750. Unlike the APS-C universe, in the Full Frame world, there are very few and rare wide-angle lenses that don't force you to assemble holder and bulky, delicate and very expensive slab filters, and that's why I chose the Irix 15 f/2.4. Probably not everyone knows that this lens is produced in two versions: Blackstone and Firefly. I chose the Firefly version. The differences between the two are as follows: The Blackstone costs more because it consists of more robust and heavier material, it is tropicalized to 100% and has phosphorescent numbers. The Firefly is cheaper and is made of lighter material, and tropicalization is partial. The lens group is exactly the same. I never go out to photograph in extreme weather situations, and for this reason I chose the Firefly. I am fully satisfied with the sharpness. I do not notice any particular coma at the edges and especially if I put the machine in bubble, the classic wide angle barrel distortions are almost absent. Those minimal distortions that can occur are easily arranged in post production, same thing with regard to the possible presence of flare. In my gallery I have several photographs made with Nikon D750 + irix 15 f/2.4 that you can go to examine. As filters for this magnificent lens I have a polarizer of nisi and a ND 1000 always of nisi. I forgot to tell you that these IRIX lenses can also fit some small jelly filters applicable on the back, but I have not had a way to try because I prefer the classic screw filters. P.S.: When I mount the 2 screw filters one on the other, first the polarizer and then the ND, there is a vignetting that however I go to eliminate in the development phase. I think I said it all.

avatarjunior
sent on November 05, 2018

Pros: Good build quality and good optical quality.

Cons: Defective from new, warranty as if there was.

Opinion: Bought a specimen for Pentax with showy of defect field curvature, brought back to the store the same day, from 80 GG I don't know anything anymore. Specifically, at full aperture set to infinity, on APS-C good quality except in the center-left part of the image. In this area to focus on a subject indefinitely you had to set the focus on 3 meters. Further suspended judgments waiting to see him, who knows when, come back. The construction looks very good, evidently the alignment of the optics no, since others have found problems in this regard. I was quiet because it was said that initially they would be entrusted to the substitution and not to repair. Based on my single experience, highly unadvisable.

avatarjunior
sent on September 09, 2018

Pros: Absence of distortion, absence of coma, brightness, lightness (Firefly), contrast, MAF block, fine adjustment of the fire to infinity.

Cons: Flare

Opinion: After having claked the front lens of the Nikkor 14-24 f:2,8, I convinced myself to take this lens into use, and I was thrilled by the optical qualities and its portability. Unfortunately it did not have the hood supplied, but patience, the front lens is still well protected from the barrel and does not protrudes almost at all from the graft of the hood, which among other things is important in case of bad weather. After the first tests it is obvious the sharpness that extends practically to the edges, where the images just undoes. At night the stars appear point on almost the entire frame, without the unpleasant effect of being transformed into commas or triangles as it happens on the 14-24 at full aperture. Compared to this, it is quite evident the presence of parasitic lights if there are very bright sources in the frame, such as lighthouses, lampposts or moon. The chromatic rendition is very pleasant. In fact, since I have this lens, the 14-24 is no longer out of custody. I do not say that it is better in all respects, indeed, probably with daylight the Nikkor outclasses the IRIX, but at night, for me, has no rivals. The fact that you can lock the focus ring with another accessory nut, and that it is possible to finely adjust the focus to infinity by simply unscrewing and tightening a screw, makes it an indispensable tool for me that I do Predominantly nocturnal photos and timelapse. The most recommended

avatarjunior
sent on June 07, 2018

Pros: Excellent sharpness almost at the edges, balanced chromatic rendering, perfectly correct distortion, controlled contrast, absence of chromatic aberration and ghosting, robustness, sexy design

Cons: Closes shadows, packaging at risk of damage to the Product. Some users complain about focus Issues.

Opinion: The object is very elegant, to the touch conveys a feeling of quality, although I preferred to buy the light version, the Firefly (weighing 568 grams without front and rear cap with the lens hood, 537 grams removed the lens hood too). I have not put between the pros and cons of the weight and the cost, because they can be judged reasonable or excessive at the same time, depending on the characteristics that you prefer in this Perspective. The weight of the Firefly corresponds roughly to that of its most direct competitor, the much cheaper Samyang 14 f/2.8, is considerably lower than the much more expensive Zeiss Distagon f/2.8, and is the middle of the Sigma Boulder Art 14 f/1.8. IRIX has some refinements such as the block of the hood and the door on the lens hood to be able to turn the polarizer without removing the hood itself. The product came to me in a tin box, beautiful to look at, but with worrying holes outwards at the widest part of the lens, which is to show that the lens has undergone compressions or beatings. In any case I have not found any damage, nor the problems reported by other users of out of focus Areas. The object is solid and Robust. As for the warranty in the package I found only one card with four empty fields to fill out, without any address where to send it nor any indication on how to use this card to activate the Warranty. I wrote in the contact area of their site for information and after a few days they responded from Krakow saying that: «The warranty card is only required by some distributors and if it has not been filled in by The seller, you do not have to do anything. The document which is the most important for warranty repair is a copy of the proof of Purchase. " of course, It is an esoteric brand and a small company, with the unknowns of the case for any assistance. The diaphragm is operated by the machine, the focus is manual, which-in a 15mm-represents an advantage, because you always leave the fire at the desired point (you can fix the fire). In hyperfocal and/or closed diaphragm you basically forget the Focus. From the optical point of view, a certain vignetting is visible to TA, which I do not consider annoying. The sharpness is really remarkable: it inevitably reduces in the extreme corners of the frame, where the image is "stretched" by the correction of the distortion (do not forget that it is a 15 mm), but this reduction is circumscribed to a Minimal and negligible portion of the frame, and this is an excellent result. The distortion correction is perhaps the strong point of this lens, obviously when held parallel to the ground: we are close to Perfection. The chromatic rendition is neutral and Faithful. The shadows are rather closed, but at the same time the contrast is not excessive, and this is appreciable in a focal of the Genre. I have not noticed chromatic aberrations, nor annoying flare (at least by day). The bokeh is Nice. In conclusion: the lens is more than valid and allows you to bring home also remarkable results in various light conditions. The problem, if anything, is upstream, in the assessment of the real need to use a focal so Thrust. Stopping at 20 millimeters (which offers a perspective although always remarkable but in my opinion more usable and manageable for landscape purposes) the Nikonista has available the extraordinary 20 GED f/1.8, which at a price not dissimilar weighs half, is much smaller and maneuverable, brighter, has autofocus and suffers from minor optical compromises. however, If you need or prefer the 15 mm, the IRIX is definitely a good choice.

Photos taken with Irix 15mm f/2.4

Foto
Jeseniki
by Drvector
48 comments, 1543 views
Foto
Vestrahorn Mountain, New England
by AvvGonzo
45 comments, 751 views  
HI RES 19.0 MP

Foto
Sunset over the lake
by Lio2001
24 comments, 1310 views
Foto
Sunset over the three peaks of Lavaredo
by GinoDelaiti
26 comments, 1281 views  
HI RES 20.2 MP

Foto
Spring Storm
by Lio2001
11 comments, 1030 views
Foto
Between thunderstorms and milky way
by Rudy85
19 comments, 2683 views
Foto
Sunset in the brianza ..
by Lio2001
24 comments, 1384 views


RCE

Publish your advertisement on JuzaPhoto (info)
Foto
My Dream
by Lio2001
9 comments, 1988 views
Foto
The Aragonese castle at the first lights of the day
by Tonyfg86
21 comments, 1333 views
Foto
Untitled Photo
by Alessandro Murgia
17 comments, 2167 views
Foto
Soon the resinelli
by Lio2001
11 comments, 875 views
Foto
Last flashes of a spent Christmas
by Copernico
7 comments, 1562 views
Foto
Looking for the polar star
by EnricoTanz
3 comments, 1616 views  
HI RES 11.9 MP

Foto
Jeseniki
by Drvector
8 comments, 501 views
Foto
It is day to the Bay of Copanello
by Tonyfg86
8 comments, 534 views
Foto
Purple Autumn
by AvvGonzo
8 comments, 1175 views  
HI RES 24.2 MP

Foto
Sunrise at Isola Bella - Taormina
by Nikywolf78
4 comments, 1442 views  
HI RES 24.1 MP

Foto
Jeseniki, like Easter Islands if there was snow there:D
by Drvector
6 comments, 628 views
Foto
Waterflow, C.
by AvvGonzo
9 comments, 248 views  
HI RES 21.1 MP

Foto
The Bay of Copanello In long exposure
by Tonyfg86
19 comments, 718 views
Foto
The Monumental Cemetery At Night
by Tonyfg86
24 comments, 508 views
Foto
Sunset on Cypress Choline
by Lio2001
10 comments, 416 views
Foto
Snowy Dream
by Jonathan Giovannini
4 comments, 490 views
Foto
Piazza Teatro Massimo
by Nikywolf78
5 comments, 1500 views  
HI RES 30.1 MP

Foto
My evening
by Lio2001
7 comments, 856 views
Foto
Milky Way on Lavaredo's Three Peaks
by GinoDelaiti
0 comments, 329 views
Foto
Castel Boccale
by Jonathan Giovannini
3 comments, 332 views
Foto
Grazing light
by Jonny78jjj
5 comments, 262 views
Foto
Essauira
by Standola
2 comments, 867 views  
HI RES 22.4 MP

Foto
Blue Hour in Isola Bella - Taormina (me)
by Nikywolf78
0 comments, 1153 views  
HI RES 37.5 MP

Foto
The Aragonese castle at the first light of dawn
by Tonyfg86
4 comments, 544 views
Foto
An explosive sunrise at the cliff of Copanello
by Tonyfg86
10 comments, 501 views
Foto
The Unicredit Tower By Night
by Tonyfg86
18 comments, 444 views


RCE

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Foto
Morning Reflections at Copanello Bay
by Tonyfg86
4 comments, 468 views
Foto
Carrettera
by Standola
1 comments, 888 views
Foto
Sunset in the Storm
by Lio2001
6 comments, 299 views
Foto
Sweet Vision
by Gaber7
2 comments, 716 views

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