Samyang 135mm f/2.0 ED UMC Lens for Pentax K Mount

Samyang 135mm f/2.0 ED UMC Lens for Pentax K Mount

Samyang 135mm f/2.0 ED UMC Lens for Pentax K Mount

B&H # SA1352P MFR # SY135M-P
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Product Highlights

  • K Mount Lens/Full Frame Format
  • 202.5mm (35mm Equivalent on APS-C)
  • Aperture Range: f/2.0 to 22
  • One Extra-Low Dispersion Element
  • Ultra Multi-Coating
  • Manual Focus; Manual Aperture Ring
  • Minimum Focus Distance: 2.6'
  • Filter Thread Diameter: 77mm
  • Removable Lens Hood
  • Rounded 9-Blade Diaphragm
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Samyang 135mm f/2.0 overview

  • 1Description

Work in low light and capture images with exceptional "bokeh" with the 135mm f/2.0 ED UMC Lens from Samyang, available here for Pentax K mount full frame & APS-C cameras. This all-manual telephoto prime offers a flattering perspective well-suited to portraits and other sensitive subject matter, and the fast f/2.0 maximum aperture helps ensure the image will be bright and have an extremely shallow depth-of-field. Also, this lens features one extra-low dispersion element to reduce the impact of chromatic aberrations in the final image as well as an Ultra Multi-Coating to reduce flare and ghosting.

A large manual focus ring as well as a physical aperture ring are available on the lens barrel for making smooth, deliberate adjustments. Also, this lens has a minimum focus distance of 2.6' and a front filter thread diameter of 77mm. Assisting with smooth, pleasing out-of-focus elements is a circular 9-blade diaphragm. Additionally, it comes with a removable lens hood and soft pouch.

Optical construction of 11 elements in 7 groups
Front filter thread is non-rotating for easier use with certain filters, such as circular polarizers and variable NDs
This lens features a mechanical aperture coupling that permits the use of aperture priority and automated exposure modes, as well as the ability to control the aperture setting with Pentax DSLRs
UPC: 084438764246
In the Box
Samyang 135mm f/2.0 ED UMC Lens for Pentax K Mount
  • Front Lens Cap
  • Rear Lens Cap
  • Lens Hood
  • Soft Pouch
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Samyang 135mm f/2.0 specs

    Focal Length 135mm
    Comparable 35mm Equivalent on APS-C Format Focal Length: 202.5 mm
    Aperture Maximum: f/2
    Minimum: f/22
    Camera Mount Type Pentax K
    Format Compatibility 35mm Film / Full-Frame Digital Sensor
    Angle of View 18.8°
    APS-C Picture Angle: 12.4°
    Minimum Focus Distance 2.62' / .8 m
    Optical Design 11 Elements in 7 Groups
    Diaphragm Blades 9, Rounded
    Image Stabilization No
    Autofocus No
    Tripod Collar No
    Filter Thread Front: 77 mm
    Dimensions (DxL) 3.23 x 4.76" / 82 x 121 mm
    Weight 1.80 lb / 820 g
    Packaging Info
    Package Weight 2.5 lb
    Box Dimensions (LxWxH) 7.8 x 5.2 x 5.1"

    Samyang 135mm f/2.0 reviews

    135mm f/2.0 ED UMC Lens for Pentax K Mount is rated 5.0 out of 5 by 4.
    Rated 5 out of 5 by from So SHARP that I giggled when seeing my first images! This lens is heavy and is manual focus, but it's sharpness is unbelievable! The colors are not the best. When images from this 135mm lens are compared to those produced by most quality Pentax lenses, I'd say the colors from this Samyang lens look slightly duller. Micro-contrast is very good, but not quite at the level of the Pentax FA Limiteds or Zeiss ZK glass. It's crazy sharp straight from f/2, and it's images hold up perfectly until f/14. I noticed a tiny bit of unsharpness creeping in at f/16, with more at f/20 and 22. With the right technique, you will achieve sharpness and clarity that most of you have never before witnessed! The only telephoto lens that I have ever used that comes close to the sharpness produced by this Samyang 135mm is the incredible and highly rated Nikkor AFS 300mm f/4. One can tweek the contrast and colors to your liking in PhotoShop/Topaz/NIK, but there's no substitute for this type of sharpness. If you like this field of view, this is a must have lens.
    Date published: 2016-01-06
    Rated 5 out of 5 by from Top Notch Telphoto Lens I purchased this lens based on the reviews and my need for a short telephoto for a Pentax K-5IIs and Pentax film camera bodies. Initial images were impressive with more careful images revealing a truly spectacular lens. Don't be afraid to shoot this lens wide open, it is supremely sharp at full aperture with impressive bokeh. My use of this lens is for general nature photography, including landscapes and astrophotography. As an astrophotograhic lens, it can be shot wide open with pinpoint stars to the corners of an APS-C sensor, but there is some light falloff until f/2.8. This would be worse on full frame or film cameras. This is an incredible lens and Samyang should be praised for their consistent efforts to produce very fine lenses at a modest cost. Most reviews tell you that you will need to manually stop down this lens as well as focus, but this is not correct for Pentax cameras. I generally shoot aperture priority or manual, and aperture can be selected with the thumbwheel in half or third stops on the camera. Aperture can be automatically selected by the camera with Shutter Priority. This is generally true of all Samyang lenses on modern Pentax DSLR's. I do not subtract a star from the rating for not being auto focus. This is a given and does not detract from the performance.
    Date published: 2016-04-23
    Rated 5 out of 5 by from Heavy, but it works Inexpensive, well built, but heavy! The weight is a bit daunting on a small APS-C Pentax, but it works. I'm not used to a manual focus lens, but found with live view, image magnification and focus peaking it wasn't too hard to get it right. You're not going to use this lens for sport where the subject is moving about, but it's fine for something like musicians in poor light, or stationary subjects where you're looking for differential focus. The bokeh is creamy, and the lens is sharp! - even at F2. I find it unnecessary to use the supplied hood, it already has a 'built in' sort of hood - the barrel sticks out about 15mm beyond the front element, and I use my hand to supplement this if needed. Finally, it has quite good close focussing ability with a max reproduction ratio of around 1:4.8
    Date published: 2018-05-15
    Rated 5 out of 5 by from As good as I've seen My very best lens for the K-1, fantastic sharpness from wide open and a usefully short minimum focal distance.
    Date published: 2017-11-02
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    Samyang 135mm f/2.0 Q&A

    Samyang 135mm f/2.0 accessories

    Samyang 135mm f/2.0 add-on savings

    The more you Add-On the more you save (when you buy the Samyang 135mm f/2.0 ED UMC Lens for Pentax K Mount)

    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
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