Sigma 85mm F1.4 EX DG HSM is a Fixed aperture Auto Focus (AF)
Telephoto Prime lens with 35mm FF max sensor coverage, and it is designed to be used with
KAF3 Mount cameras.
The Sigma 85mm F1.4 EX DG HSM is also available in the Canon EF , Nikon F (FX), Sony Alpha and Sigma SA mounts.
What type of photography is the Sigma 85mm F1.4 EX DG HSM lens good for?
The choice of photography type for which you intend to use the Sigma 85mm F1.4 EX DG HSM is a crucial decision factor. Below, we have assessed its suitability for various photography scenarios:
There are 4 more lenses that have the same focal range and aperture values with the Sigma 85mm F1.4 EX DG HSM that are compatible with the Pentax KAF3 mount, you can find the review and comparison links of these lenses below.
Lenses in Pentax KAF3 Mount with Same Focal and Aperture Range
Reasons to Buy the Sigma 85mm F1.4 EX DG HSM Lens
Here we've included a summary of the advantages and disadvantages of the Sigma 85mm F1.4 EX DG HSM lens in a list form to assist you in determining whether it offers the features you need.
| Autofocus |
| Distance Scale |
| DoF(Depth of Field) Scale |
| Hood supplied |
| Full-time Manual Focusing |
| Very Fast Aperture |
| Covers Full-Frame Sensor |
| 9 Diaphragm Blades for Smooth Bokeh |
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Lens Mount
Sigma 85mm F1.4 EX DG HSM is compatible with cameras that have a Pentax KAF3 lens mount. Some of the latest released cameras that are compatible with the Pentax KAF3 lenses are Pentax K-3 III Mono, Pentax KF and Pentax K-3 III.
Size, Weight and Filter Thread
The size and weight are crucial factors to consider when searching for your next lens. Sigma 85mm F1.4 EX DG HSM has a maximum diameter of 86mm and a total length of 88mm. It weighs 725g / 25.6 oz.
Sigma 85mm F1.4 EX DG HSM has a filter thread of 77mm. Below are links to the filters that we recommend you to consider for your Sigma 85mm F1.4 EX DG HSM:
You can also check All Pentax KAF Mount Lenses with 77mm Filter Thread Size to find the matching lenses.
Focal Range
Sigma 85mm F1.4 EX DG HSM has a fixed focal length of 85mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 127.5mm.
Optical Image Stabilization
Sigma 85mm F1.4 EX DG HSM doesn't have an optical image stabilization system so the only option to stabilize the image taken with this lens is to mount on a camera body with IBIS (sensor based In-body image stabilization).
Maximum Magnification Ratio
Sigma 85mm F1.4 EX DG HSM has a Max Magnification Ratio of 0.12x with a minimum focusing distance of 0.85m. 0.12x ratio is quite low, making this lens unsuitable even for modest close-up photography.
Below are the 3 Telephoto Prime type Pentax KAF mount lens alternatives with highest max magnification ratios:
Aperture
The Sigma 85mm F1.4 EX DG HSM features a maximum aperture of F1.4 and can be stopped down to a minimum aperture of F16. With an exceptionally wide F1.4 maximum aperture, this lens excels in challenging low-light environments, letting you shoot at lower ISO speeds to keep images clean and noise-free. The combination of a longer 85mm focal length and a bright F1.4 opening makes it incredibly easy to isolate your subject, melting away busy backgrounds into smooth, professional bokeh. Stopping down to F16 gives you plenty of sweep for landscapes or outdoor group shots where you need everything sharp from front to back.
Optical Formula
Sigma 85mm F1.4 EX DG HSM's optical formula consists of 11 elements in 8 groups . The following special elements are used in this design:
- 1 SLD glass element
- 1 glass-molded aspherical element
Lens Hood
Sigma 85mm F1.4 EX DG HSM comes with a removable lens hood which is handy to reduce lens flare and glare in your photos.
Popular Comparisons of Sigma 85mm F1.4 EX DG HSM
Here are the 8 most popular comparisons of the Sigma 85mm F1.4 EX DG HSM amongst Camera Decision readers.
Top Alternatives of Sigma 85mm F1.4 EX DG HSM Lens
In addition, it would be interesting to check which lenses from other mounts are most commonly compared with the Sigma 85mm F1.4 EX DG HSM.
Top Alternatives of Sigma 85mm F1.4 EX DG HSM in Other Lens Mounts
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