The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Leica TL 35mm F1.4 ASPH and the HD Pentax-FA 35mm F2 AL 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. Leica TL 35mm F1.4 ASPH is the longer of the two lenses at 77mm. The HD Pentax-FA 35mm F2 AL with a length of 45mm, is 32mm shorter. Besides being longer, the Leica TL 35mm F1.4 ASPH also has a larger diameter of 70mm compared to the HD Pentax-FA 35mm F2 AL's 64mm diameter.
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Below you can find a scaled side-by-side image of Leica TL 35mm F1.4 ASPH and HD Pentax-FA 35mm F2 AL to get a better idea of how their sizes compare in real life.
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. Leica TL 35mm F1.4 ASPH weighs 128g, which means it is 65g (33%) lighter than the HD Pentax-FA 35mm F2 AL which has a weight of 193g.
Filter Threads
The Leica TL 35mm F1.4 ASPH has a filter size of 60mm whereas the HD Pentax-FA 35mm F2 AL has a 49mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 60mm filters that we recommend you to consider for the Leica TL 35mm F1.4 ASPH:
And these are the 49mm filters that we recommend for the HD Pentax-FA 35mm F2 AL:
Lens Mounts
The Leica TL 35mm F1.4 ASPH has the Leica TL lens mount whereas the HD Pentax-FA 35mm F2 AL has the Pentax KAF lens mount. Some of the latest released cameras that are compatible with these mounts are , and for the Leica TL Mount and Pentax K-3 III Monochrome, Pentax KF and Pentax K-3 III for the Pentax KAF Mount.
Focal Range
Both lenses have the same focal range of
35mm but while Leica TL 35mm F1.4 ASPH has the fastest aperture of
F1.4, the HD Pentax-FA 35mm F2 AL's widest aperture value is
F2.