The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 16mm F1.8 and the Sony FE 40mm F2.5 G 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. Sony FE 16mm F1.8 is the longer of the two lenses at 75mm. The Sony FE 40mm F2.5 G with a length of 45mm, is 30mm shorter. Besides being longer, the Sony FE 16mm F1.8 also has a larger diameter of 74mm compared to the Sony FE 40mm F2.5 G's 68mm diameter.
Below you can find a scaled side-by-side image of Sony FE 16mm F1.8 and Sony FE 40mm F2.5 G to get a better idea of how their sizes compare in real life.
Comparison image of the Sony FE 16mm F1.8 and the Sony FE 40mm F2.5 G 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. Sony FE 40mm F2.5 G weighs 173g, 43% (131g) lighter than the Sony FE 16mm F1.8's weight of 304g.
Filter Threads
The Sony FE 16mm F1.8 has a filter size of 67mm whereas the Sony FE 40mm F2.5 G has a 49mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 67mm filters that we recommend you to consider for the Sony FE 16mm F1.8:
And these are the 49mm filters that we recommend for the Sony FE 40mm F2.5 G:
Lens Mounts
Both the Sony FE 16mm F1.8 and the Sony FE 40mm F2.5 G has the same Sony E lens mount . Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX5 , Sony A7R VI and Sony A7 V .
Focal Range
Sony FE 16mm F1.8 is a prime lens with fixed focal lenght of 16mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
24mm .
On the other hand, the Sony FE 40mm F2.5 G 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 .
