The type of photography that you are planning to use is an important decision factor. Here we have evaluated the TTArtisan 27mm F2.8 and the Olympus M 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 27mm F2.8 is the longer of the two lenses at 41mm. The Olympus M 17mm f1.8 with a length of 36mm, is 5mm shorter. Besides being longer, the TTArtisan 27mm F2.8 also has a larger diameter of 68mm compared to the Olympus M 17mm f1.8's 58mm 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 27mm F2.8 weighs 100g, which means it is 20g (16%) lighter than the Olympus M 17mm f1.8 which has a weight of 120g.
Filter Threads
The TTArtisan 27mm F2.8 has a filter size of 39mm whereas the Olympus M 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 39mm filters that we recommend you to consider for the TTArtisan 27mm F2.8:
And these are the 46mm filters that we recommend for the Olympus M 17mm f1.8:
Lens Mounts
The TTArtisan 27mm F2.8 has the Nikon Z lens mount whereas the Olympus M 17mm f1.8 has the Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with these mounts are RED Komodo-X 6K Z, Nikon Z50 II and Nikon Z30 for the Nikon Z Mount and OM System OM-3 Astro, OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
TTArtisan 27mm F2.8 is also available in the Sony E and Fujifilm X mounts.
Focal Range
TTArtisan 27mm F2.8 is a prime lens with fixed focal lenght of 27mm which has an effective (full-frame 35mm equivalent) focal range of
40.5mm when used on a APS-C / DX format camera.
On the other hand, the Olympus M 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.
