Sigma 35mm f/1.4 DG HSM Art Lens for Pentax K

Sigma 35mm f/1.4 DG HSM Art Lens for Pentax K

Sigma 35mm f/1.4 DG HSM Art Lens for Pentax K

B&H # SI3514P MFR # 340109
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Product Highlights

  • K-Mount Lens/Full-Frame Format
  • Aperture Range: f/1.4 to f/16
  • One FLD Element, Four SLD Elements
  • Two Aspherical Elements
  • Floating Elements System
  • Super Multi-Layer Coating
  • Hyper Sonic AF Motor, Manual Override
  • Rounded 9-Blade Diaphragm
  • Compatible with Sigma USB Dock
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Sigma 35mm f/1.4 overview

  • 1Description

An optically advanced wide-angle prime, the Pentax K 35mm f/1.4 DG HSM Art Lens from Sigma mixes a comfortable focal length with an especially fast design. The bright f/1.4 maximum aperture helps to achieve shallow depth of field and selective focus effects, and also suits working in difficult lighting conditions. The optical layout incorporates both low dispersion and aspherical elements, which help to improve sharpness and clarity by controlling both spherical and chromatic aberrations. A floating elements system is also used to maintain performance throughout the focusing range. A Super Multi-Layer Coating is also featured, and helps to minimize flare and ghosting for greater contrast and color accuracy when working in strong lighting conditions.

Complementing the imaging capabilities, the lens sports a Hyper Sonic Motor to produce quick, smooth, and quiet autofocus performance with full-time manual focus override. The physical design features a brass bayonet mount, which offers rigidity and mounting precision along with a seal to guard against dust and moisture. Additionally, a rounded nine-blade diaphragm contributes to a pleasing bokeh quality.

As part of the Art line within Sigma's Global Vision series, this lens is designed to achieve truly notable optical performance and is ideally suited for creative and artistic applications.
Wide-angle prime is designed for full-frame-format Pentax K-mount cameras, however is also suitable for APS-C models where it provides a 52.5mm equivalent focal length.
Impressively bright f/1.4 maximum aperture is well-suited for working in low-light conditions and also provides greater control over the focus position when using shallow depth of field techniques.
One F Low Dispersion (FLD) element and four Special Low Dispersion (SLD) elements are featured in the optical design, and help to reduce color fringing and chromatic aberrations for improved clarity and color accuracy.
Two aspherical elements are used to help limit distortion and spherical aberrations and also contributes to greater overall sharpness and accurate rendering.
Floating elements system helps to realize consistent optical performance throughout the focusing range, from 11.8" to infinity.
A Super Multi-Layer Coating has been applied to lens elements in order to minimize lens flare and ghosting and contribute to producing contrast-rich and color-neutral imagery, even in backlit conditions.
Rounded nine-blade diaphragm contributes to a smooth and pleasing bokeh quality.
The integrated HSM (Hyper Sonic Motor) realizes quick and quiet autofocusing, which is further complemented by an optimized AF algorithm to produce smoother focusing performance. The HSM also permits full-time manual focus control simply by rotating the focus ring at any time.
The bayonet mount is constructed from brass for ensured accuracy and durability. Additionally, rubber sealing is incorporated in the mount design to render it dust- and splash-resistant.
This lens is compatible with the optional Sigma USB Dock for fine-tuning different lens characteristics and updating its firmware.
UPC: 085126340612

Sigma 35mm f/1.4 specs

Performance
Focal Length 35mm
Aperture Maximum: f/1.4
Minimum: f/16
Camera Mount Type Pentax K
Format Compatibility 35mm Film / Full-Frame Digital Sensor
Angle of View 63.4°
Minimum Focus Distance 11.81" / 30 cm
Magnification 0.192x
Maximum Reproduction Ratio 1:5.2
Optical Design 13 Elements in 11 Groups
Diaphragm Blades 9, Rounded
Features
Image Stabilization None
Autofocus Yes
Physical
Filter Thread Front: 67 mm
Dimensions (DxL) 3.03 x 3.70" / 77 x 94 mm
Weight 1.46 lb / 665 g
Packaging Info
Package Weight 2.3 lb
Box Dimensions (LxWxH) 5.7 x 5.0 x 4.5"

Sigma 35mm f/1.4 reviews

35mm f/1.4 DG HSM Art Lens for Pentax DSLR Cameras is rated 4.5 out of 5 by 6.
Rated 5 out of 5 by from Tack sharp and fast focus I got this lens for my Pentax K5ii and it's really stunning. I was able to take a chest-up photograph of my subject with ample background around and get the eyes so sharp I could crop down to one eye and still have a printable image of my reflection in the pupil. The quickness of the focus and the lack of noise are also features I appreciate. My go-to lens has always been a Tamron zoom and it so loud when it auto-focuses as to be disruptive in quiet settings and distracting to subjects who mistake it for shutter release and break pose.
Date published: 2016-01-25
Rated 4 out of 5 by from Slightly Untapped Potential I need a low-light lens for my Pentax K5IIs, and the Sigma 35mm 1.4 seems to fit that need. This is a solid, maybe heavy, piece of gear. The lens did not focus well at all at first. Corrections with the Sigma dock helped, but focus finally seemed to fall into line with an in-camera adjustment. I have not wrung out the lens properly yet so I cannot make a final conclusion. Downloaded pictures are better than what they appear to be when chimping, so the potential is there. The lens is sharp, with decent bokeh. Autofocus is slightly slower than expected (lesser glass focuses faster with my K5IIs). I expect the manually adjustable focus after autofocus lock is going to be a very valuable feature since the camera's autofocus seems to be uncomfortable with such a fast lens. Now, I just need to use the lens in the heat of battle in some low light situations to see what it can bring to the table. Recommended with caution.
Date published: 2015-02-18
Rated 5 out of 5 by from Great Lens for Pentax K-1 Mark II This lens is a great match to the Pentax K-1 Mark II. I enjoy the photos in low light possible due to the K-1 and the lens speed. It included the dock for accurate calibration but I do not need it for now. My lens came perfectly calibrated. For those K-1 users concerned about the lens scratching the camera body, do not be concerned anymore because the B&H stock has the new compatible version of the lens with the new flange that will not scratch the camera body.
Date published: 2018-05-18
Rated 5 out of 5 by from Great lens, would buy again Sharp lens, that is relatively quiet on my Pentax K1. Very enjoyable to use and produces wonderful colors and quality in the images. Have only used for studio work so far, but can't wait to get it outside.
Date published: 2017-03-23
Rated 4 out of 5 by from This is a first-class lens This is the best lens I have ever used. Very sharp, beautiful rendition, and very nice bokeh. It's heavy, but real glass is heavy. If it wasn't all plastic and had better barrel markings, I would give it five stars.
Date published: 2013-06-21
Rated 4 out of 5 by from Great Lens My girlfriend and I are verrrrrrrry satisfied with this lens for camera people.
Date published: 2013-10-14
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Sigma 35mm f/1.4 Q&A

Sigma 35mm f/1.4 accessories

Designed for use with:

  • Nikon D4s
  • Nikon D5
  • Nikon D610
  • Nikon D750
  • Nikon D800E
  • Nikon D810
  • Nikon D810A
  • Nikon D850
  • Nikon Df
  • Pentax K-1
  • Pentax K-1 II
  • Pentax K-3 II
  • Pentax K-70
  • Pentax K-S2
  • Pentax KP