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Pentax 50mm F/1.8: Picture 1 regular $106.90

About Pentax 50mm F/1.8

This Pentax 50mm F/1.8 Bundle comes with $19.95 worth of free accessories including a New Leaf PLUS 3yr Lens Warranty and Shipping is free! .

SMC PENTAX-DA 50mm f/1.8 medium-telephoto autofocus lens is designed exclusively for use with the Pentax K -mount interchangeable-lens (ILC) digital cameras. Thanks to state-of-the-art optical design technology from PENTAX, the lens' image coverage is optimized for PENTAX K-mount ILC cameras to deliver sharp, clear images from edge to edge. With a sleek, modern look anda lightweight body, the new PENTAX-DA 50mm f/1.8 lens was designed with versatility and flexibility in mind and is ideal for photographers of varying levels, from amateurs to professionals.

The PENTAX-DA 50mm f/1.8 lens is ideal for photographers interested in portraiture and general photography. The lens measures just 1.5 inches long and weighs only 4.3 ounces, making it small enough and light enough to accompany photographers on all kinds of outings.

When mounted on a PENTAX K-mount ILC camera body, the PENTAX-DA 50mm f/F1.8 lens delivers a focal length of 50mm or 76.5mm in the 35mm format. The lens' f/1.8 maximum aperture and round diaphragm blades enable it to produce a natural "bokeh" (out-of-focus) effect, which gives the blurry elements in an image a softer, rounded and more pleasing appearance. Additionally, the f/1.8 aperture makes it possible to increase camera shutter speed when photographing in poorly lit conditions, which minimizes camera shake and helps eliminate blur.

For extra preventative measures, the front surface of the PENTAX-DA 50mm f/1.8 lens is treated with the company's original SP (Super Protect) coating, which repels dust, water, grease, and other substances that may adhere to the surface of the lens. The protective coating promotes trouble-free use in all kinds of shooting situations.

The Pentax 50mm F/1.8 is commonly used for Landscape/scenery, Low light, Night photography, Weddings and more.The Pentax 50mm F/1.8 is most used by customers who consider themselves to be a Photo enthusiast among others.The Pentax 50mm F/1.8 is popular because customers like the following qualities of the Pentax 50mm F/1.8: Consistent output, Easily interchangeable, Fast / accurate auto-focus, Lightweight and Nice bokeh

Summary of Customer Reviews

Customers most agreed on the following attributes:
Fast / accurate auto-focus (11),Lightweight (11),Nice bokeh (11),Consistent output (10),Easily interchangeable (7)
Best Uses:
Low light (11),Landscape/scenery (6),Night photography (6),Weddings (5)
Reviewer Profile:
Photo enthusiast (10),Casual photographer (3)

Pentax 50mm F/1.8 Features

  • Prime standard lens is ideal for portrait, still life, or low light photography.
  • Fast f/1.8 aperture for outstanding depth of field control.
  • Rounded diaphragm blades create a more circular aperture for smooth, beautiful bokeh at large aperture settings.
  • Quick-shift Focus System for instant switching from auto to manual focus.
  • SP (Super Protect) coating, which repels dust, water, grease, and other substances that may adhere to the surface of the lens
  • Focal length equivalent to 76.5mm (in 35mm format).
  • Developed specifically for PENTAX digital SLR cameras.

Pentax 50mm F/1.8 Specifications

5 Groups/ 6 Elements
Angle of view
31.5° (w/ PENTAX DSLR)
F stop range
Closest Focusing Distance
0.45m (1.5 ft.)
Maximum Magnification
Filter Size
Dimensions (Length x Diameter)
37mm x 65mm (1.5" x 2.5" )
122g (4.3 oz.)
Diaphragm Control
Fully Automatic
Mfr #

Pentax 50mm F/1.8 Reviews

Review Snapshot®


(based on 14 reviews)


of respondents would recommend this to a friend.

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Most Liked Positive Review


Very nice normal option

Seems to be based on Pentax's outstanding 50/1.7 optical formula that has been around for decades. Newer coatings and a less expensive casing results in a solid performer for far less money. Nice lens and a great first prime for a new dSLR owner.

Reviewed by 14 customers


I should get it earlier


from Fort Collins, CO  -  Photo Enthusiast

Its really good deal for the price. I have a bunch of manual prime lenses, but with babies and children you need to be fast. That is the main reason I got this lens. Though it is a little slow focusing in the low light, but it have to be really low lighting. I use it with Pentax K30. Even at night, indoors, when the regular lights are on it works good. I do not use flash.


Great Lens


from Ozark, Missouri  -  Photo Enthusiast

I recently purchased this lens and have only used it once. I am initially very impressed with the photographs. My daughter, who is a professional photographer, said after seeing pictures taken with the new lens, that she was not impressed with my camera until she saw the pictures taken with the new 50mm prime lens. Now she has changed her mind about the camera. Evidently, it took a decent lens to create exceptional looking pictures!


Great lens, great price


from South Haven, MI  -  Photo Enthusiast

A wonderful piece of glass. Why didn't I purchase this sooner?


Sharp Versatile and Great Value


from Old Fields, WV  -  Photo Enthusiast

This lens is practically a give away at the current price. It is incredibly sharp and great for low light.


Excellent lens for your money


from Vancouver, WA  -  Casual Photographer

Bought this for my sister, she likes it a lot and I have tested it myself for a little. I have fa 50mm 1.4 and this DA 50mm 1.8 is very good alternative. Build quality is good and it is light. IQ is excellent for your money. Sharpness is good even wide open.


Plastic Fantastic


from Indiana  -  Casual Photographer

Great little lens. It's very light, fast, and sharp (when stopped down a tiny bit). Got this for everyday photography, but 50mm is a bit to narrow of a focal point although excellent for portraits. So, 35mm is on the wish list. The AF is also a bit on the loud side. All in all, for the price, this is an excellent lens with great IQ.


Wonderful lens


from 11211  -  Photo Enthusiast

As a hobby photographer this lens is absolutely amazing for the price. If you are looking for a prime lens go no further (unless you want to spent a lot more). This lens will help you compose your shots better. Definitely recommend this lens to any amateur.


Pentax SMCP-DA 50mm f/1.8


from SE Michigan  -  Photo Enthusiast

The lens is tack sharp and the focus is fast and accurate


Portrait perfection


from Upstate, SC  -  Photo Enthusiast

I was looking for a portrait lens with a large aperture and something fairly sharp with auto focus. This lens was just what I needed. I'm a stickler for image quality so it was easy to look past the cameras faults when I saw the pictures. Pros: very sharp even wide open, smooth bokeh, great for indoor shots without flash, lightweight, inexpensive ($181 at time of purchase) Cons: slow and obnoxiously loud auto focus, plastic construction, no quick-shift, not weather-sealed


Fantastic Lens for the price


from SF Bay Area  -  Casual Photographer

I purchased this lens for babies photography. Although MF lenses are good, they are a pain to use on babies. This lens works great with my K-X. Pros : - Best value alternative for AF prime - Excellent low light performance - Works great with the Digital SLRs Cons: - Plastic Construction.


Questions & Answers Powered by TurnTo®

Questions about this item:

Shopper  will this lens work on k2000?
STUART M  Yes this will work on the k2000
Shopper  Hi there, I'm wondering if this lense is compatible with my Pentax K5 camera?
LAURIE J  Yes, I have a K7 and it works beautifully. Enjoy!
Mike H  Is this a auto focus lens?
ADELL H  Yes, although no quick shift (quick shift allows manual focusing over the top of auto focus without changing any knobs).
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