The type of photography that you are planning to use is an important decision factor. Here we have evaluated the 7Artisans FF 18mm f5.6 Z and the TTArtisan 27mm F2.8 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 7Artisans FF 18mm f5.6 Z with a length of 32mm, is 9mm shorter. Besides being longer, the TTArtisan 27mm F2.8 also has a larger diameter of 64mm compared to the 7Artisans FF 18mm f5.6 Z's 61mm 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 94g, 35% (52g) lighter than the 7Artisans FF 18mm f5.6 Z's weight of 146g.
Filter Threads
The 7Artisans FF 18mm f5.6 Z has a filter size of 49mm whereas the TTArtisan 27mm F2.8 has a 39mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 49mm filters that we recommend you to consider for the 7Artisans FF 18mm f5.6 Z:
And these are the 39mm filters that we recommend for the TTArtisan 27mm F2.8:
Lens Mounts
The 7Artisans FF 18mm f5.6 Z has the Nikon Z lens mount whereas the TTArtisan 27mm F2.8 has the Sony E lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon ZR, Nikon Z5 II and RED Komodo-X 6K Z for the Nikon Z Mount and Sony ZV-E10 II, Sony A6700 and Sony FX30 for the Sony E Mount.
TTArtisan 27mm F2.8 is also available in Fujifilm X and Nikon Z mounts.
Focal Range
7Artisans FF 18mm f5.6 Z is a prime lens with fixed focal lenght of 18mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
27mm.
On the other hand, the 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.
