Specification :
The Sigma I series features full-frame-compatible lenses that offer mirrorless users a new and better alternative, both in the experience of shooting with the lens and in the impressive results it is able to achieve.
One of the key advantages of mirrorless cameras is their smaller form-factor, and this new 90mm optic is designed to be perfectly matched to these more compact systems without sacrificing performance. This combination of superb optical quality with exceptional portability, not previously possible with DSLR systems, will bring new opportunities to this and future generations of photographers.
Simultaneously, Sigma is aware that, in this day and age when we have such huge diversity when it comes to what we use to photograph, as represented by smartphones, people look for something more than a mere act of “taking pictures” when they choose to own a camera and lenses.
Sigma’s excellence in development and processing technologies has been built up since it was founded in 1961, and has become further sophisticated with the introduction of the Sigma Global Vision in 2012. With this as a base Sigma has given careful thought to how photographers use and enjoy their lenses, including optical design, advanced functionality, build quality and the experience of picking up and using the lens, and with all of this carefully considered the I series was born.
Camera Type
Corresponding Mount
Sensor Format
Lens Construction
11 elements in 10 groups (5 SLD and 1 aspherical lens elements)
Angle of View
27.0°
Number of Diaphragm Blades
9(Rounded diaphragm)
Minimum Aperture
F22
Minimum Focusing Distance
50cm / 19.7in
Maximum Magnification Ratio
1:5
Filter Size
φ55mm
Dimensions (Diameter × Length)
L-Mount?φ64mm × 59.7mm / φ2.5in. × 2.4in.
Sony E-mount?φ64mm × 61.7mm / φ2.5in. × 2.4in.
*The length of a lens is measured from the filter surface to its mount.
Weight
L-Mount?295g / 10.4oz.
Sony E-mount?295g / 10.4oz.
Edition Number
C021
The three-digit code on the surface of the lens is to indicate the year the lens was first released.
(Since it is different from the year of manufacture, the release year and edition number may not match depending on the mount.)
Supplied Accessories
LENS HOOD?LH576-05B?LH576-05S?
MAGNETIC METAL LENS CAP?LCF55-02 MB?LCF55-02 MS?
FRONT CAP?LCF-55 IV?
REAR CAP?LCR III?
Pouch
Mount / Product Barcode
* L-Mount is a registered trademark of Leica Camera AG.
* This product is developed, manufactured and sold based on the specifications of E-mount which was disclosed by Sony Corporation under the license agreement with Sony Corporation.