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 28-70mm F2.8 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 28-70mm F2.8 DG DN is the longer of the two lenses at 102mm. The TTArtisan AF 75mm F2 with a length of 69mm, is 33mm shorter. Besides being longer, the Sigma 28-70mm F2.8 DG DN also has a larger diameter of 72mm compared to the TTArtisan AF 75mm F2's 68mm diameter.
Below you can find a scaled side-by-side image of TTArtisan AF 75mm F2 and Sigma 28-70mm F2.8 DG DN to get a better idea of how their sizes compare in real life.
Comparison image of the TTArtisan AF 75mm F2 and the Sigma 28-70mm F2.8 DG DN Size and Weight 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 142g (30%) lighter than the Sigma 28-70mm F2.8 DG DN which has a weight of 470g.
Filter Threads
The TTArtisan AF 75mm F2 has a filter size of 62mm whereas the Sigma 28-70mm F2.8 DG DN has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 62mm filters that we recommend you to consider for the TTArtisan AF 75mm F2:
And these are the 67mm filters that we recommend for the Sigma 28-70mm F2.8 DG DN:
Lens Mounts
The TTArtisan AF 75mm F2 has the Leica L lens mount whereas the Sigma 28-70mm F2.8 DG DN has the Sony E lens mount . Some of the latest released cameras that are compatible with these mounts are Leica SL3-P , Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount and Sony FX5 , Sony A7R VI and Sony A7 V for the Sony E Mount.
Sony E , Nikon Z and Fujifilm X mounts.
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 28-70mm F2.8 DG DN has a focal range of 28-70mm and 2.5X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 42 - 105mm .
