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 Kamlan 50mm F1.1 II for their suitability to various photography scenarios:
Size and Weight Comparison
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 38g (6%) lighter than the Kamlan 50mm F1.1 II which has a weight of 600g.
Filter Threads
The TTArtisan 75mm F1.5 SB has a filter size of 58mm whereas the Kamlan 50mm F1.1 II has a 62mm 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 62mm filters that we recommend for the Kamlan 50mm F1.1 II:
Lens Mounts
The TTArtisan 75mm F1.5 SB has the M42 lens mount whereas the Kamlan 50mm F1.1 II has the Sony E 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 Sony ZV-E10 II, Sony A6700 and Sony FX30 for the Sony E Mount.
Kamlan 50mm F1.1 II is also available in Canon EF-M , Fujifilm X and Micro Four Thirds mounts.
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 Kamlan 50mm F1.1 II is a prime lens with fixed focal lenght of 50mm which has an effective (full-frame 35mm equivalent) focal range of 75mm when used on a APS-C / DX format camera.