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Pentax smc PENTAX-FA 50mm f/1.4 Lens, Black

SKU: PX5014AFA MFR: 20817
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ALA404
Alter 49mm Rapid Filter System, Includes Lens Mounting Ring, Black

Key Features

  • Capture stunning images with the Pentax 50mm lens's exceptional image quality.
  • Experience superior sharpness across the frame with this prime Pentax FA 50mm lens.
  • The wide f/1.4 aperture is perfect for low-light photography and beautiful bokeh.
  • Compact and lightweight design makes this 50mm lens ideal for everyday shooting.
  • Enjoy fast and accurate autofocus, ensuring you never miss that perfect moment.
  • Create portraits with smooth backgrounds using this lens's shallow depth of field.
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Special Order?Estimated to Ship: 08/08/2025
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$29.99

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$49.99

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$69.99

Available to U.S. customers only.

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Q&A

Questions & Answers

Denis C : I am wondering as to how this lens will work on the K1ii full frame and also on the K3?MATTHEW L : Have this lens and it works fine with my K1, super fast, should work on your k3 also.REZA R : On your K1 it is full frame unless you set your camera to apac , on k3 which is apac it captures whatever you see on your viewfinder .
Shopper : this lens works in K50 camera??JULIE R : It should work in all K mount Pentax camera bodies.BOON G : Yes it does--the K-50 has an autofocus screw-drive on its mount that will turn the focusing module on this lens. This is an old but reliable system, where you will hear soft high-pitch sounds when this lens focuses.
KENDALL T : Does this lens come with a lens hood?BOON G : No it doesn't--there's a square Pentax hood made specifically for it though, available separately.STEPHANIE B : NoJESS O : No, it is only the lens.BARRY J : No this lens does not.

Reviews about this item

Review Summary

2017-07-04T15:36:40

Rated 5 out of 5

Pleasantly surprised

I purchased this lens mainly as a portrait lens. Having read some concerns about softness wide-open, I was a bit skeptical but jumped on a recent sale. Put simply, this lens is phenomenal! It is wonderfully sharp in its 'sweet spot' with creamy bokeh for portraits. It has some occasional quirks (some flare and fringing), especially wide open, but it also has a classic character that yields some stunning portraits. I would highly recommend a hood (not included), which does seem to boost contrast quite a bit. Even the occasional flare can be used for effect outdoors. It's an oldie but a goodie!

RYAN S.

2017-06-21T13:06:12

Rated 5 out of 5

Happy so far

I am happy so far. can't wait to use it for what I got it for. low light concerts.

Richard B.

2013-10-13T21:00:00

Rated 5 out of 5

Very nice and lens!

I really like this lens. Very wide opening, but beware of the depth of field ;-)

Azergoth

2013-05-02T21:00:00

Rated 5 out of 5

Great, easy to use lens

I originally purchased it for use on my K-10, but it now stays on my k-01 as my standard lens.

jimH

2013-04-10T21:00:00

Rated 5 out of 5

This is the best lens I have ever had...

It is very enjoyable to take indoor and low light phots with this lens. I have Sigma 17-70mm lens as walkaround lens but after this lens I generally prefer to use pentax. And also it makes very good bokeh.

Dioem

2011-12-18T19:00:00

Rated 4 out of 5

Small, cheap wonder

This is a small and cheap lens, but the results are really good if stopped down a bit. Personally I do not use this lens much as my primary interest is landscapes, but when I need a fast lens this one does the job nicely.

Reytor

2011-09-01T21:00:00

Rated 5 out of 5

Love this lens!

I use this lens to photograph my kids (3 & 7 yrs) and my 2 pets, A LOT!. I love how crisp and clean my shots are and the lens is fast so perfect for chasing kids and pets. The bokeh is lovely too. The lens is also fairly small and light weight so it is easy to get carry around without straining my neck. All-in-all, I have yet to be disappointed. This lens makes me look like I know what I'm doing. Anyone interested in shooting portraits should have this little lens in their bag.

KRISTINA M.

2011-07-21T21:00:00

Rated 5 out of 5

new favorite lens

I bought this lens because I have an unhealthy obsession for bokeh, and it delivers! It's also great in low light situations. The focal length is perfect and the autofocus is fast. I was surprised by how small and lightweight yet durable it seems. I like having the option of using the aperture ring; I think it makes it look classy.

MARY G.

2010-02-20T19:00:00

Rated 5 out of 5

Glad I bought it

I am a newbie so I am not the best to be reviewing lenses, however, I really like this lens a lot. Its small, lightweight, simple to use, sharp, great in low light, and relatively inexpensive. You cant go wrong with this lens. Id say its a must have.

dehanson1

2009-08-21T21:00:00

Rated 5 out of 5

I waiting so much time !!!

A beautiful lense, i nevermade before so much great portraits before. An obligatory lense for pentax users !

Julien R.

2009-08-18T21:00:00

Rated 5 out of 5

Fast Lens - Great for Portraiture

if you have never owned a fast lens like this you will be amazed at what you can shoot with this thing. interiors won't require flash with the aperture wide open, and subject isolation is great with beautiful bokeh. super sharp. if you put it on a dslr though this is not a standard focal length lens. on a dslr this lens is roughly the equivalent of a 75mm lens. perfect for general portraiture, low light and closeups. my new favorite lens.

Mr G.

2009-05-12T21:00:00

Rated 5 out of 5

I wouldn't be without it

This is one prime lens, everyone should have. As much as I like my zoom lenses you can't beat this one for picture quality. An idea walk about lens.

BJP

2009-04-07T21:00:00

Rated 5 out of 5

packs a punch for little bling

I enjoy using this lens because it is tack sharpe from f2.8 and up. f1.4 and f2.0 are sharpe but because of the larger DOF it is harder to get consistent shots in lower lights. I use this lens (along with other lenes) for portrait landscapes, product shots. I am not afraid to use this lens whenever the need arises. Can not beat the price for such a great sharpe lens

Daddy o.

2009-04-07T21:00:00

Rated 5 out of 5

Great sharp lens for the price

Love the bright view finder

WILLIAM K.

2009-02-28T19:00:00

Rated 5 out of 5

A must have that lives up to its reviews

Having purchased my K200D in July 08, I must confess to being a newbie when it comes to dslrs. During my researches, this lens popped up as a must have from professional and user reviews alike both for its performance and as a learning tool, i.e. framing with your feet rather than a zoom. During my limited experience with the lens, I've found nothing to contradict the rave reviews it has received, and find it very useful shooting indoors. I have also taken some nice twilight winterscapes and close-ups. The [$]price tag didn't hurt either.

m.g

2009-02-05T19:00:00

Rated 5 out of 5

Great lens

Very easy to use. Picture turns very nice. Best for indoor events that you want to shot without flash.

Jerry

2009-02-05T19:00:00

Rated 5 out of 5

The fastest and best lens I ever bought.

Its so good I am amazed at the speed. For me I cannot believe the speed at which this lens works. I am always astounded at the speed. Its absolutely brilliant

mick

2009-01-20T19:00:00

Rated 4 out of 5

Great for a newbie's first lens

Most reviews of this lens are very positive and they call this lens a "must have" prime lens. I agree. The focus is a bit soft wide open and can be tough to use in low light, but if you want to shoot without a flash you will very much like this lens--as long as you can use the manual focus correctly when the autofocus has difficulties. Remember that the focal length on an aps-c camera will be more like 75mm or so rather than 50mm so you will have to step back from the subject sometimes. It takes fantastic portraits of people and right out of the box I was getting some great shots. Wedding photographers typically rave about this lens. In fact, I would recommend that you NOT buy the kit lens and just start out with this 50mm f1.4.

STEVE H.

2009-01-02T19:00:00

Rated 5 out of 5

As excellent as others say

I raise Guiding Eyes puppies, which I photograph for archiving and pleasure. At last I can capture sharp and VISIBLE details of the black Labs. Often I have a lively puppy on short or long leash and can still shoot effectively one-handed with excellent quality. The lens has exactly the right range for shooting these dogs in action. It's a great transition lens between my older Pentax and my digital one.

KK

2009-01-01T19:00:00

Rated 5 out of 5

Awesome Lens..!

Used with K200D's clean high ISO, this lense helps take low light pictures because of its large aperture(f/1.4). I almost always use it at f2.0/2.8 in low light situations and got excellent result. Overall ,I am very happy with my purchase. Great buy for @200 A word about adorama's service - Simply Great..!

Sridharan

2008-12-28T19:00:00

Rated 5 out of 5

Normal lens becomes a "long" lens

My third lens for my K20D (Pentax 16-45, Tamron 70-300)and I use it more than I originally thought i would. Turns out this is the one all my old Cokin filters fit, not to mention its three-stop advantage over the F/4 of the other two. Often it's one of the others on the camera, and the easy-to-pack F 1.4 in an Adorama lens case big enough to hold the other two when they come off. Need to shoot in dim light? need to shoot at low ISO? Need a fast shutter speed? The F/1.4 winds up on the camera a LOT! And it is SHARP! And since it is really a 75mm lens on this camera, it's modest close focusing of 17 inches is effectively more like 12. At [$], it's a steal. The plastic looks a bit cheap, but it is well put together, even with a rubbery rim on the front element. Looks like the old days with that big glass on the front of the camera, too!

TJ

2008-12-28T19:00:00

Rated 5 out of 5

A PRO LEVEL LENS

Very sharp focus, usable in very low light.

jmartinspentax

2008-12-28T19:00:00

Rated 4 out of 5

I really like this lens

I use this a lot on my k20d. It is a good fast lens, and if you stop it down a couple of stops it is tack sharp. It has a pleasing bokeh when you open it up. For the money, you can't beat it. Cons: If you are looking for candid shots in low light, you might want to manual focus, because it doesn't always catch focus quickly.

GLENN G.

2008-09-25T21:00:00

Rated 5 out of 5

Very good, very affordable lens

I bought this lens to take pictures in low light conditions and to have better depth of field control for portraits. This lens exceeded my expectations given its price. Very sharp, great color rendition, and smooth bokeh. If those who use zoom lenses were to buy just prime lens, this would be the one to get.

Richard R.

2008-09-08T21:00:00

Rated 5 out of 5

SUPER LENS

This is a great lens. It is very sharp at 1/2 stop over f/1.4. But 1.4 is good. I really like this lens for low light and inside shots.

DEBRA D.

2008-08-24T21:00:00

Rated 4 out of 5

SMCP-FA 50mm f/1.4 Every good thing [...]

Every good thing you ever heard about this lens is true. The back grounds are pure blur and creamy and the focus is very sharp. Used on my K10d it is a joy to use. Hey, a prime 50 for two bills! You should not pass this up.[...]

DAVID D.

2008-08-20T21:00:00

Rated 5 out of 5

Excellent lens

Excellent lens whether its on film or digital. Factor in the cost it makes it a legendary fast fifty. It and the DA 35mm ltd macro have all but replaced the 18-55mm II kit lens. Once I get the DA 14 or Sigma 20, it will be on the used market, not that it is a bad lens.

Blue

2008-07-22T21:00:00

Rated 5 out of 5

Nice Lens

Nice bokah, fast and sharp. Quite a bargain for the money

JimB

2008-07-22T21:00:00

Rated 4 out of 5

Fantastic for portraits!

Admittedly I haven't used 10 different portrait lenses in my life, but this is by far the best in my experience. I use it with my K10D. Incredibly sharp right down to f/2, with the most amazing bokeh of any lens I've ever seen. Shooting at f/1.4-1.7 is a bit of a crapshoot, but when the shot comes out well, it's amazing. I tried using this to take a few action shots of some friends waterskiing, but I have to say I prefer my 50-200 Pentax zoom for that. But for that wonderful, intimate low-light portrait feel you can't go wrong with this lens. Works best with the subject filling the majority of the screen, such as facial close-ups. A fantastic value.

Superfly

2008-07-15T21:00:00

Rated 5 out of 5

Awesome Lens!

This lens outshines several other, more expensive lenses that I inherited from my father. Straight out of the box is takes beautiful, sharp images that truly take your breath away. I have not yet found another lens that takes pictures that are as true to real life as this one does. Awesome product!

Francis

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Pentax 50mm f/1.4 Specifications

General

General

Jump to...
  • Lens Mount

    Pentax K

  • Lens Format

    Full Frame

  • Lens Type

    Standard

  • Compatibility

    Pentax K-1 Mark II, Pentax K-1

  • Lens Series

    Pentax FA

  • Kit Style

    Base

  • MPN

    20817

  • Color

    Black

  • Focus Type

    Auto Focus

  • Closest Focus Distance

    1.5 / 45.72cm

  • Fixed Focal Length

    50mm

  • Maximum Aperture

    f/1.4

  • Filter Size

    49mm

  • Angle Of View

    47°

  • 35mm Equivalent Focal Length

    75mm

  • Minimum Aperture

    f/22

  • Maximum Magnification

    0.14x

  • Lens Coating

    Multi-Coated

Features

Jump to...
  • Image Stabilization Type

    No

Construction

Jump to...
  • Lens Elements / Groups

    7 Elements in 6 Groups

  • Diaphragm Blades

    6

  • Weight

    7.8oz / 221g

  • Dimensions

    2.5 x 1.5" / 6.35 x 3.81cm

  • UPC Code

    027075030534

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6 Accessories for Pentax smc PENTAX-FA 50mm f/1.4 Lens, Black

  • All Accessories (6)
  • Filters (3)
  • Bags & Cases (2)
  • Cap Leash (1)

Designed For Use With:

  • Pentax K-1 Mark II
  • Pentax K-1

Compatible With Restrictions:*

* If using a APS-C Lens on a Full Frame Camera OR Full-Frame Lens on a APS-C Camera then Image sensor will be narrowed down to APS-C size.

  • Pentax K-01
  • Pentax K-2000
  • Pentax K-3
  • Pentax K-3 II
  • Pentax K-30
  • Pentax K-5 IIs
  • Pentax K-50
  • Pentax K-500
  • Pentax K-7
  • Pentax K-70
  • Pentax KP
  • Pentax K-S1
  • Pentax K-S2

Need Help?

For any questions about compatibility with this product, call us at 800-223-2500 or you can email us any time.

Models
Pentax smc PENTAX-FA 50mm f/1.4 Lens, Black
$349.95

$378.95

Save:$29.00 (8%)

Special Order

Generally ships in 7-14 days, subject to availability

Pentax HD Pentax-FA 50mm f/1.4 Lens, Black
$326.95

$346.95

Save:$20.00 (6%)

In Stock

Pentax Normal smc P-D FA 50mm f/2.8 Macro Lens
$296.95

$346.95

Save:$50.00 (14%)

In Stock

CompatibilityPentax K-1, Pentax K-1 Mark IIPentax K-1, Pentax K-1 Mark IIPentax K-1, Pentax K-1 Mark II
Kit StyleBaseBaseBase
Lens TypeStandardStandardMacro, Standard
Edition-Standard-
Filter Size49mm49mm49mm
Fixed Focal Length50mm50mm50mm
Lens MountPentax KPentax KPentax K
Maximum Aperturef/1.4f/1.4f/2.8

About Pentax 50mm f/1.4

FEATURED REVIEWS

Great affordable prime for low-light

By SORIN A.

This is the most affordable new auto focus Pentax prime lens. Used on K100D body and it is 1000 times better than the kit lens. It allows for: - great control over depth-of-field - fast auto-focus due to large maximum aperture - sharp and virtual distortion-free pictures - portraiture when mounted on APS-C size bodies (equiv of 77mm on full frame sensors) - inconspicuously taken shots (kids etc) The only dissapointment I have is that it is not a zoom lens:-)

Very good lens!!

By CPH

When I received it, I am surprised by its small size. When I used it and Pentax smc P-DA 18-55mm F3.5-5.6 to take pictures from a badminton tournament and post the pictures on my web site, my friends asked me about why some pictures (taken using Pentax SMCP-FA 50mm f/1.4) are better than others (taken using Pentax smc P-DA 18-55mm F3.5-5.6). The wider aperture helps with this result for shots that you need to freeze the action, like badminton play.

Over the years, the smc PENTAX-FA 50mm f/1.4 Lens, Black, has emerged as a gold standard in the world of autofocus lenses, offering an unparalleled blend of brilliance, even in low light conditions. This lens, designed for Pentax autofocus cameras, boasts an impressively large f/1.4 aperture, ensuring your photographs remain sharp, vibrant, and in-focus, regardless of the lighting conditions.

Experience the epitome of light transmission with the Pentax Super Multi Coating process. This unique, proprietary method captures and channels every ray of light, rendering your photographs with an unmatched, life-like brilliance.

Don't be deceived by its compact design; this lens is a powerhouse of versatility. It's an invaluable asset for a wide range of photography styles, from candid snapshots and intimate portraits to still life compositions and expansive landscapes. The large aperture of this lens enhances indoor photography without the need for harsh flash and makes celestial night sky captures more majestic.

This lens is a technical marvel for discerning photographers. When mounted on a Pentax Digital SLR Camera Body, it offers an effective focal length equivalent to 76.5mm. The renowned Pentax Super Multi-coating ensures minimal light loss, while its compatibility with all Pentax film and digital SLR cameras adds to its appeal. Despite weighing just 7.76 oz and having a thickness of only 1.45", it offers a precise 31.5-degree angle of view. The lens construction comprises 7 elements in 6 groups, ensuring clarity and depth in your images.

In the dynamic intersection of precision and passion that is photography, the smc PENTAX-FA 50mm f/1.4 Lens, Black, stands as a testament to both. This high-quality, durable, and reliable lens is a must-have tool for every photographer's kit.

Pentax 50mm f/1.4 Features

  • Standard autofocus lens optimized for Pentax cameras
  • Bright f/1.4 aperture suitable for diverse photography styles including snapshots, portraits, still life, and landscapes
  • Compact yet powerful with a large aperture ensuring quality indoor shots without a flash and capturing detailed night skies
  • Boasts a focal length equivalent to 76.5mm on Pentax Digital SLR cameras, considering the 0.15x crop factor
  • Enhanced light transmission due to the Pentax Super Multi-coating
  • Universally compatible with every Pentax Film & Digital SLR camera
  • Lightweight and handy at just 1.45" in thickness and weighing 7.76 oz
  • Offers a specific 31.5-degree viewing angle with its fixed 50mm focal length
  • Automated diaphragm function for ease of use
  • Intricate lens build comprising 7 elements in 6 distinct groups

Key Features

  • Capture stunning images with the Pentax 50mm lens's exceptional image quality.
  • Experience superior sharpness across the frame with this prime Pentax FA 50mm lens.
  • The wide f/1.4 aperture is perfect for low-light photography and beautiful bokeh.
  • Compact and lightweight design makes this 50mm lens ideal for everyday shooting.
  • Enjoy fast and accurate autofocus, ensuring you never miss that perfect moment.
  • Create portraits with smooth backgrounds using this lens's shallow depth of field.

What's in the box:

  • Pentax smc PENTAX-FA 50mm f/1.4 Lens (Black)
  • 49mm Front Lens Cap
  • Rear Lens Cap
  • Pentax 1 Year Limited Warranty