The type of photography that you are planning to use is an important decision factor. Here we have evaluated the TTArtisan 75mm F1.5 SB and the Leica Summilux-M 90mm F1.5 ASPH 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 Summilux-M 90mm F1.5 ASPH is the longer of the two lenses at 91mm. The TTArtisan 75mm F1.5 SB with a length of 63mm, is 28mm shorter. Besides being longer, the Leica Summilux-M 90mm F1.5 ASPH also has a larger diameter of 74mm compared to the TTArtisan 75mm F1.5 SB's 63mm 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 75mm F1.5 SB weighs 562g, which means it is 448g (44%) lighter than the Leica Summilux-M 90mm F1.5 ASPH which has a weight of 1010g.
Filter Threads
The TTArtisan 75mm F1.5 SB has a filter size of 58mm whereas the Leica Summilux-M 90mm F1.5 ASPH 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 58mm filters that we recommend you to consider for the TTArtisan 75mm F1.5 SB:
And these are the 67mm filters that we recommend for the Leica Summilux-M 90mm F1.5 ASPH:
Lens Mounts
The TTArtisan 75mm F1.5 SB has the M42 lens mount whereas the Leica Summilux-M 90mm F1.5 ASPH has the Leica M lens mount. Some of the latest released cameras that are compatible with these mounts are Leica M EV1, Leica M11-D and Pixii Max for the M42 Mount and Leica M EV1, Leica M11-D and Pixii Max for the Leica M Mount.
Focal Range
TTArtisan 75mm F1.5 SB 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 Leica Summilux-M 90mm F1.5 ASPH is a prime lens with fixed focal lenght of 90mm.
