A fast normal-length prime featuring an old-school retro design, the Pentax SMC FA 50mm f/1.4 Classic Lensoffers a bright maximum aperture in a highly compact and portable form factor. Constructed with optical elements to cover the full-frame image circle of all K-mount cameras, this lens produces unique image renditions commonly created by lenses designed 50 years ago. When set to wide apertures and against strong backlight, the lens produces a unique visual effect commonly known as rainbow flare. In order to assist in creating this effect, a 49mm ND filter is included with the lens. Additionally, it retains the retro exterior design of the original SMC PENTAX-FA 50mm f/1.4 with a black matte finish and a matte-black focus ring.

Full-Frame | f/1.4 to f/22    Fast Normal-Length Prime    Old-School Retro Design    Compact and Portable Form Factor    Minimum Focusing Distance: 1.5'    Rounded 8-Blade Diaphragm

A normal-length prime optimized for full-frame Pentax K-mount cameras, the lens can also be used with APS-C models where it provides an approximate equivalent focal length of 75mm.

Fully compatible with all K-mount DSLR cameras and K-mount film-format cameras, this lens allows you to retain all camera functions.

Bright f/1.4 maximum aperture contributes to both low-light performance as well as offering precise control over depth of field.

An eight-blade diaphragm control mechanism produces soft and natural bokeh from f/1.4 to f/2.8 while also minimizes the streaking effect of point light sources.

Well-suited for a wide variety of subjects including street photography and portraiture, this prime lens offers a minimum focusing distance of 1.5' and allows you to easily capture nearby subjects.

Through intentional fine-tuning of the lens design, this lens produces a unique visual effect known as rainbow flare when it captures an image at wide-open apertures and against strong backlight. It lets you change the position and size of rainbow flare by shifting the relative position of the subject and light source, creating a unique visual expression not common with modern lenses. In order to assist in creating this effect, a 49mm ND filter is included with the lens.

Related Questions and Answers

Q: 1. Will this Series FA DA Pentax lenses work with the K 3 Crop sensor bodies? john joulakian

A: Yes, this is Fully compatible with that camera. Make sure to factor in the 1.5x crop factor as that camera uses a crop sensor.

Q: 2. Can this lens be used with the Pentax 645nII (the 120 film camera)?

A: Yes, the Pentax smc FA 645 200mm f/4 IF Lens is compatible with the Pentax 645NII.

Q: 3. Is this lens compatible with the K1000?

A: The Pentax HD PENTAX-FA 50mm f/1.4 Lens is compatible with the Pentax K1000 Film Camera,

Q: 4. Can you use this in the Pentax 645n?

A: Not without an adapter if they make one.

Q: 5. I want to know the diameter of this lens? For example Canon 200 L lens has a diameter of 72mm. How much is for this lens?

A: The diameter of this lens is 74.5mm.

Q: 6. Is this a "full frame" or APS-C le s?

A: Hi Mike, It's a full frame lens

Q: 7. Is this made in Vietnam or Japan?

A: According to the information we have, our current inventory's Country of Origin is Vietnam. Please be aware this can change over the product's production life without notice.

Q: 8. I spoke with a sales associate with B & H before buying this Macro 50mm lens for my K-7 and was assured it would work. Current lens is a 50 - 200 mm zoom which works great, just not as a general purpose lens. I removed the current lens and attached the new lens. I cannot go to live view, the lens is not communicating with the K-7, nothing works with the camera. Did I miss something about using this lens or do I have a defective product? So far, I am very disappointed with my purchase.

A: If the lens works on the K5, the lens is fine. The lens may not be fully compatible with the K7.

Q: 9. Is this 50 mm macro lens a good lense to photograph art work?

A: Macro lenses like these are very sharp, en should be excellent for your purpose. The only question would be if the focus plane is flat enough (whether everything the same distance from the lens is sharp across the whole frame), but using a smaller aperture like f8 should solve that problem, if it indeed exists.

Q: 10. Does this 50 mm macro lens work on the Pentax k-m?

A: I don't see why not. All Pentax lenses without a screw mount are compatible with Pentax bodies. I use old lenses which I used for old SLR s with my new Pentax k-3.Ruthie