The type of photography that you are planning to use is an important decision factor. Here we have evaluated the TTArtisan AF 56mm F1.8 and the Venus 17mm F1.8 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 56mm F1.8 is the longer of the two lenses at 56mm. The Venus 17mm F1.8 with a length of 51mm, is 5mm shorter. Besides being longer, the TTArtisan AF 56mm F1.8 also has a larger diameter of 68mm compared to the Venus 17mm F1.8's 55mm 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. Venus 17mm F1.8 weighs 172g, 26% (61g) lighter than the TTArtisan AF 56mm F1.8's weight of 233g.
Filter Threads
The TTArtisan AF 56mm F1.8 has a filter size of 52mm whereas the Venus 17mm F1.8 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 52mm filters that we recommend you to consider for the TTArtisan AF 56mm F1.8:
And these are the 46mm filters that we recommend for the Venus 17mm F1.8:
Lens Mounts
The TTArtisan AF 56mm F1.8 has the Fujifilm X lens mount whereas the Venus 17mm F1.8 has the Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with these mounts are Fujifilm X-T30 III, Fujifilm X-E5 and Fujifilm X-M5 for the Fujifilm X 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 56mm F1.8 is also available in the Sony E and Nikon Z mounts.
Focal Range
TTArtisan AF 56mm F1.8 is a prime lens with fixed focal lenght of 56mm which has an effective (full-frame 35mm equivalent) focal range of
84mm when used on a APS-C / DX format camera.
On the other hand, the Venus 17mm F1.8 is a prime lens with fixed focal lenght of 17mm which has an effective (full-frame 35mm equivalent) focal range of 34mm when used on a FourThirds format camera.