The type of photography that you are planning to use is an important decision factor. Here we have evaluated the TTArtisan AF 14mm F3.5 and the Panasonic 20mm F1.7 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. TTArtisan AF 14mm F3.5 is the longer of the two lenses at 37mm. The Panasonic 20mm F1.7 ASPH with a length of 26mm, is 11mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 63mm.
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 14mm F3.5 weighs 98g, which means it is 2g (2%) lighter than the Panasonic 20mm F1.7 ASPH which has a weight of 100g.
Filter Threads
The TTArtisan AF 14mm F3.5 has a filter size of 39mm whereas the Panasonic 20mm F1.7 ASPH has a 46mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 39mm filters that we recommend you to consider for the TTArtisan AF 14mm F3.5:
And these are the 46mm filters that we recommend for the Panasonic 20mm F1.7 ASPH:
Lens Mounts
The TTArtisan AF 14mm F3.5 has the Sony E lens mount whereas the Panasonic 20mm F1.7 ASPH has the Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with these mounts are Sony ZV-E10 II, Sony A6700 and Sony FX30 for the Sony E Mount and OM System OM-3 Astro, OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
TTArtisan AF 14mm F3.5 is also available in the Fujifilm X mount.
Focal Range
TTArtisan AF 14mm F3.5 is a prime lens with fixed focal lenght of 14mm which has an effective (full-frame 35mm equivalent) focal range of
21mm when used on a APS-C / DX format camera.
On the other hand, the Panasonic 20mm F1.7 ASPH is a prime lens with fixed focal lenght of 20mm which has an effective (full-frame 35mm equivalent) focal range of 40mm when used on a FourThirds format camera.