The type of photography that you are planning to use is an important decision factor. Here we have evaluated the 7artisans 25mm F1.8 Lite and the TTArtisan 40mm F2 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. 7artisans 25mm F1.8 Lite is the longer of the two lenses at 51mm. The TTArtisan 40mm F2 with a length of 44mm, is 7mm shorter. Besides being longer, the 7artisans 25mm F1.8 Lite also has a larger diameter of 67mm compared to the TTArtisan 40mm F2's 61mm diameter.
Below you can find a scaled side-by-side image of 7artisans 25mm F1.8 Lite and TTArtisan 40mm F2 to get a better idea of how their sizes compare in real life.
Comparison image of the 7artisans 25mm F1.8 Lite and the TTArtisan 40mm F2 Size and Weight 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 40mm F2 weighs 167g, 8% (16g) lighter than the 7artisans 25mm F1.8 Lite's weight of 183g.
Filter Threads
The 7artisans 25mm F1.8 Lite has a filter size of 58mm whereas the TTArtisan 40mm F2 has a 52mm 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 7artisans 25mm F1.8 Lite:
And these are the 52mm filters that we recommend for the TTArtisan 40mm F2:
Lens Mounts
The 7artisans 25mm F1.8 Lite has the Nikon Z lens mount whereas the TTArtisan 40mm F2 has the Sony E 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 Sony FX5 , Sony A7R VI and Sony A7 V for the Sony E Mount.
Sony E and Fujifilm X mounts.
Nikon Z and Leica L mounts.
Focal Range
7artisans 25mm F1.8 Lite is a prime lens with fixed focal lenght of 25mm which has an effective (full-frame 35mm equivalent) focal range of
37.5mm when used on a APS-C / DX format camera.
On the other hand, the TTArtisan 40mm F2 is a prime lens with fixed focal lenght of 40mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 60mm .
