Pentax Camera Lens Review: SMC Pentax-FA 50mm F1.4 - Pentax Normal Prime Lens

If you asked someone what lenses for Pentax they would recommend, chances are they would highly recommend this Pentax 50mm lens. This Pentax lens review is going to discuss why you need to consider this lens for your gig bag. This 50mm Pentax lens is simply one of the best choices when comparing price vs. performance, and it is highly rated by users. This K-mount Pentax camera lens was originally designed for film SLR cameras, but it is fully compatible on any Pentax digital SLR.

As an "FA" series lens, this 50mm version features fully automatic shooting, as well as the ability to control the aperture manually. The camera body is responsible for the autofocus, as this lens does not have a built-in motor. The rubber focus ring allows the user to precisely focus in manual mode as needed, though the focus mode still needs to be selected via the auto/manual toggle switch on the actual camera body.

At first glance the lens feels a little cheap because of the plastic construction. If you're used to older metal Pentax lenses this is readily apparent. However, don't let the outside look or feel fool you, because this lens is constructed very well and performs admirably. The FA 50mm f1.4 lens is also sizably smaller and lighter than other compareable lenses, such as the Canon EF 50mm f1.4 lens (the latter is also more expensive).

If one had to complain about this lens, it would probably be that it is a little soft when shooting wide-open. This is quickly rectified by stopping down, and the lens becomes razor sharp. It is nice to have an f1.4 lens, but the extremely shallow depth of field at that point can easily result in a blurry image. That is why this lens really shines with its sharpness when stopped down past f2-f2.8 or more. The bokeh is also nicest when stopped down at apertures smaller than f2.8. One thing to watch out for (really goes for any lens wide-open), is to make sure to use a lens hood to avoid flare. At smaller apertures this is less of a concern.

The FA 50mm f1.4 lens is great for use in low-light situations, and as a portrait lens. This is of course keeping in mind that the optimal sharpness is obtained at apertures smaller than f2.8. Some folks might find the focal length a little too long for portrait use, but I find it works great for my needs. The APS-C format of Pentax DSLRs makes the lens an equivalent 75mm, which is again why some people find it a little too long for portraiture.

Lenses for Pentax really don't get much better than this one, unless of course you decide to drop several hundred dollars or more on a DA* or Limited lens. I honestly believe this Pentax-FA 50mm f1.4 lens is a steal, as you can purchase one for around $200, give or take. This Pentax camera lens is a personal favorite, and is always in my camera bag. Although not perfect, it is sharp, fast, and makes excellent pictures. Thanks for reading this Pentax lens review!