The type of photography that you are planning to use is an important decision factor. Here we have evaluated the TTArtisan AF 75mm F2 and the Sigma 65mm F2 DG DN 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. Sigma 65mm F2 DG DN is the longer of the two lenses at 75mm. The TTArtisan AF 75mm F2 with a length of 69mm, is 6mm shorter. Besides being longer, the Sigma 65mm F2 DG DN also has a larger diameter of 72mm compared to the TTArtisan AF 75mm F2's 68mm diameter.
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. TTArtisan AF 75mm F2 weighs 328g, which means it is 77g (19%) lighter than the Sigma 65mm F2 DG DN which has a weight of 405g.
Filter Threads
Both the TTArtisan AF 75mm F2 and the Sigma 65mm F2 DG DN have the same Filter thread size of 62mm.
Below are links to the 62mm filters that we recommend you to consider for these lenses:
Lens Mounts
The TTArtisan AF 75mm F2 has the Sony E lens mount whereas the Sigma 65mm F2 DG DN has the Leica L lens mount. Some of the latest released cameras that are compatible with these mounts are Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount and Leica SL3-P, Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount.
TTArtisan AF 75mm F2 is also available in the Nikon Z , Leica L and Fujifilm X mounts.
Sigma 65mm F2 DG DN is also available in Sony E mount.
Focal Range
TTArtisan AF 75mm F2 is a prime lens with fixed focal lenght of 75mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
112.5mm.
On the other hand, the Sigma 65mm F2 DG DN is a prime lens with fixed focal lenght of 65mm.