The type of photography that you are planning to use is an important decision factor. Here we have evaluated the SG-image 25mm F1.8 and the Sony E 16-50mm F3.5-5.6 PZ OSS 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. SG-image 25mm F1.8 is the longer of the two lenses at 32mm. The Sony E 16-50mm F3.5-5.6 PZ OSS with a length of 30mm, is 2mm shorter. Besides being longer, the SG-image 25mm F1.8 also has a larger diameter of 67mm compared to the Sony E 16-50mm F3.5-5.6 PZ OSS's 65mm 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. Sony E 16-50mm F3.5-5.6 PZ OSS weighs 116g, 19% (29g) lighter than the SG-image 25mm F1.8's weight of 145g.
Filter Threads
The SG-image 25mm F1.8 has a filter size of 52mm whereas the Sony E 16-50mm F3.5-5.6 PZ OSS has a 41mm 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 SG-image 25mm F1.8:
And these are the 41mm filters that we recommend for the Sony E 16-50mm F3.5-5.6 PZ OSS:
Lens Mounts
Both the SG-image 25mm F1.8 and the Sony E 16-50mm F3.5-5.6 PZ OSS has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony ZV-E10 II, Sony A6700 and Sony FX30.
SG-image 25mm F1.8 is also available in the Nikon Z and Fujifilm X mounts.
Focal Range
SG-image 25mm F1.8 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 Sony E 16-50mm F3.5-5.6 PZ OSS has a focal range of 16-50mm and 3.1X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 24-75mm when used on a APS-C / DX format camera.