Sigma I 4
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A lens is a piece of your photographic camera gear. But it’southward also something yous spend your time with when taking pictures.
When yous retrieve about it that fashion, at that place are so many factors y’all’d care about other than the images you take with it.
I series lenses are then satisfying to use and feel then natural in the mitt that yous’ll desire to achieve for 1 every time yous shoot.
I series lenses are more than a tool that takes beautiful pictures.
They are designed to enhance your photographic manner.
They are congenital to assistance you achieve your creative vision.
They are equally much about the journeying as the results.
That is the concept behind the letter ‘I’ in this new series.
We believe that the I series is unique in being able to meet these expectations.
A range of lenses
to all-time suit
your shooting style
Combines superior image quality
with everyday use
your partner in creation
20mm F2 DG DN
24mm F2 DG DN
35mm F2 DG DN
65mm F2 DG DN
more shooting freedom
24mm F3.5 DG DN
45mm F2.viii DG DN
90mm F2.eight DG DN
The SIGMA I series features full-frame uniform lenses that offering new value to mirrorless systems. The combination of superb optical performance with a level of compactness that is perfectly suited to smaller and lighter modern mirrorless cameras volition bring you new opportunities for a perfect shot.
SIGMA is aware that in today’s world we have a wide range of camera choices, specially with the increment in mobile phone ownership. But with many photographers looking for something more than something that simply captures images when they choose to ain a photographic camera and lens, I serial lenses offer the ultimate combination of superb optical performance, outstanding usability and meaty form-cistron.
SIGMA’s excellence in development and production technologies has been congenital up since our founding in 1961 and became increasingly sophisticated with the introduction of the SIGMA Global Vision brand in 2012. With this as a base, SIGMA has given careful thought to the quality of the products, the feeling of using it and the pleasance of owning it. This is how the I serial was built-in.
Here are the three “I”due south that are central to gaining insight into this concept:
The SIGMA identity
Genuinely Made in Nihon
“Genuinely Made in Japan” has been SIGMA’s identity since it was founded. It shines through in every aspect of the I series, including the manufacturing, metalworking, and assembly technologies.
“To exist honest,
we’ve gone farther than
we really needed to”
Kazuto Yamaki, CEO, SIGMA Corp
The I series is all about the pleasure of ownership. Information technology’south an amalgamation of technological expertise we have, put into giving a real feeling of quality to the production. The lens body in particular is well beyond the level that’due south needed.
That said, we were able to achieve a level of sensory quality unique to the I series, precisely because we went the extra mile. Let u.s.a. evidence you what makes the I series and then special.
From outside parts to inner structural parts, on which the operation ring slides, the I series is produced from the machining of metal materials. It has a luxurious construction very similar to the SIGMA Cinematics LENSES range, which is designed to withstand heavy apply by professional image-makers.
Chiefly using robust metal materials that can make the lens much more than durable, and no alternative cloth tin offering the same feeling of solidity and weight, or such a stylish look and experience.
Hood, operation band
A large number of grooves chosen ‘knurling’ are cut into the hood, the focus ring and the discontinuity ring, improving the lens functioning by serving as sideslip resistance and giving the lens a premium look and experience unique to the I series.
All the grooves are cut i by one, a meticulous process that ensures a luxurious stop.
Lens trunk surface
Leading surface treatment technique
On the exterior of the metallic barrel, a matting treatment called blast, in which particles are blown onto the surface, is applied. Besides a treatment called alumite, in which an oxide movie is produced on the surface to make it black, is added.
A combination of these two treatments create a unique gloss and texture. Equally I series lenses have metal parts lying next to each other, a high level of quality control is required to forestall a deviation in the stop between adjacent parts. This is achieved using the know-how obtained through the manufacture of SIGMA CINE LENSES.
The matched surfaces are proof of the processing accuracy.
The function on which the scale of the aperture ring is engraved and the part on which the base line and the production name are engraved have the same diameter, naturally connecting the two adjacent parts on the aeroplane of the same height.
This connectedness on the airplane too constitutes extreme precision of manufacture specific to the I series. Any divergence that occurs in role processing tin lead to a gap, which creates a difference in level, or a slight protrusion, when the parts are put together every bit a lens.
The matched surfaces are the proofs of the processing accuracy. Please trace this part with your finger and feel a natural connectedness.
Precise, reassuring action
The aperture ring offers a precise, definite activeness, with great attention paid to ensure the click is well-divers but not too sharp. Sound-deadening grease is used to create a more than rounded sound.The touch that one feels when the operation band hits the border was crafted so that information technology tin produce the right strike feeling
Construction without compromise
The focus rings of the I series lenses have fluid-like, well-damped movement. They are very shine when they begin to move, and then offering the correct amount of resistance owing to the viscosity of the grease used in their structure.
The realization of this movement was made possible owing to the farthermost applied science precision of both external and internal structural parts. The near-perfect roundness of the focus ring was achieved past a sophisticated metallic processing technique at the SIGMA Aizu factory that aids very fine adjustment. The precision of the focus ring movement demonstrates our exceptional attention to particular in the design, manufacture and assembly of these lenses.
Focus fashion switch
Tactile and intuitive switch action
A newly-developed dedicated long-stroke switch has been adopted to change the focus mode on the 20mm F2 DG DN | Contemporary, 24mm F2 DG DN | Gimmicky, 35mm F2 DG DN | Contemporary, and the 65mm F2 DG DN | Gimmicky. To create a solid click action when the switch is shifted, it incorporates an intricate mechanism including a spring, a steel brawl, and a dedicated printing part.
However, adopting these mechanisms increased the switching speed, which presented two drawbacks: a sharper activeness and increased audio. To improve these, a mechanism for enclosing audio-deadening grease in the switch unit of measurement was added, helping reduce the operational sound.
The greatest operational feeling born from the latest technology
In the evolution of the I series, meticulous attention was paid to the touch on and feel of the operational parts, which might remind some users of their experience of using classic, pre-digital lenses.
But unlike on these older, archetype lenses, on which the operational parts were mechanically connected to the inner structure, the I series, which is designed exclusively for mirrorless cameras, works in a different way, bringing a range of advantages. The focus ring adopts a past-wire arrangement, while the aperture ring is operated electronically. In other words, it is possible to accomplish the perfect operational movement without beingness restricted by the inner structure, as the ii are not mechanically linked.
This latest technology allows the best experience when using these lenses, and is some other reason that the I series was born from the Contemporary line.
F2 icon that improves performance
A embrace ring is used between the focus band and the aperture ring on the 20mm F2 DG DN | Gimmicky, 24mm F2 DG DN | Contemporary,35mm F2 DG DN | Contemporary and the 65mm F2 DG DN | Gimmicky.
This is the position where the fingers naturally sit and it enables like shooting fish in a barrel zipper and removal of the lens from the camera. In add-on, the tactile stop of the surface is a combination of the trajectory of a cut bract and alumite layer. This is adopted in parts of the Art lens mount as well, which delivers a brushed stop that represents the iconic pattern of the lens body.
Lenses adjusted 1 past ane
In the I serial, all letters and lines are engraved by lasers, which are able to create extremely fine lines compared with preprint, and there is no risk of peeling, which can occur with ink. Withal, having fine lines means having a thin scale and baseline, which makes gaps more noticeable when the parts are assembled. For this reason earlier SIGMA lenses did non accept the scale marker on the aperture band.
In the I series, to properly align the scale of the discontinuity ring to the base line, lenses are visually checked and assembled one past one without creating a guide for assembly in the part.
Magnetic metal lens cap
Meticulously crafted dedicated cap
The 24mm F2 DG DN | Contemporary, 24mm F3.v DG DN | Gimmicky, 35mm F2 DG DN | Contemporary, 65mm F2 DG DN | Contemporary and the 90mm F2.8 DG DN | Contemporary of the I series are accompanied by a dedicated magnetic metal lens cap, in addition to a normal plastic cap. This dedicated metal cap clips to the front surface of the lens magnetically. It is no exaggeration to say that this meticulously crafted cap represents the finishing impact for the I serial.
SIGMA I series | Magnetic Metallic lens Cap Promotion Video
*Cannot be used when a filter is fastened.
Magnetic metallic lens cap holder
Cap holder created for added convenience and style
When a cap is removed from the lens information technology should have a proper place where it tin exist kept. Using this every bit a starting point, a cap holder using the magnetic force of the dedicated cap was created.
With the cap fastened to the ring plate, and the plate clipped to a bag or belt, the cap is always inside piece of cake reach and is less likely to go lost. Plus, its elegant blueprint is a fashionable addition to a lensman’due south equipment.
Defended metal hood
Materials advisedly selected for the highest quality and usability
On the dedicated metal hood, the bayonet section was made of plastic with the goal of obtaining a shine and secure attachment to the lens. Since a metallic and a plastic role rub directly against each other, a special plastic material was adopted to improve durability and smoothness. Information technology achieves both sturdiness and elegance, which makes the I series unique.
As with the main body, all of the sections except the sliding department adopt metallic materials and are molded through machining. The hood requires a totally different cutting pattern for the within and the exterior. Grooves called knurling are engraved on the exterior, while notched level differences called calorie-free shielding lines are engraved on the inside. These are created i-past-one through an intricate procedure.
to your artistic work
The I series’ optical blueprint has state-of-the-art technologies built in, including the mirrorless-sectional blueprint that takes advantage of a short flange dorsum distance and loftier-precision aspherical lenses. It combines the superb optical functioning needed to shoot full-frame with a meaty pattern.
Find impressions of I series via inspiring ways of living.
Sigma I 4