The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Pentax FA 50mm F1.4 and the Pentax FA 50mm F1.4 Classic for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is a crucial factor to consider when comparing two lenses. Pentax FA 50mm F1.4 is the longer of the two lenses at 41mm. The Pentax FA 50mm F1.4 Classic with a length of 37mm, is 4mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 65mm.
The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods. Pentax FA 50mm F1.4 Classic weighs 216g, 3% (7g) lighter than the Pentax FA 50mm F1.4's weight of 223g.
Below you can find the dimension and weight table of the Standard Prime Lenses in Pentax KAF Mount for size comparison purposes.
Standard Lenses in Pentax KAF Mount for Size Comparison
Filter Threads
Both the Pentax FA 50mm F1.4 and the Pentax FA 50mm F1.4 Classic have the same Filter thread size of 49mm.
Below are links to the 49mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Pentax FA 50mm F1.4 and the Pentax FA 50mm F1.4 Classic has the same Pentax KAF lens mount. Some of the latest released cameras that are compatible with the Pentax KAF lenses are Pentax K-3 III Mono, Pentax KF and Pentax K-3 III.
Pentax FA 50mm F1.4 is also available in the Pentax KAF mount.
Focal Range
Both lenses have the same focal range of
50mm and the fastest aperture of
F1.4.