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 Samyang AF 35mm F2.8 FE 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. Samyang AF 35mm F2.8 FE is the longer of the two lenses at 33mm. The SG-image 25mm F1.8 with a length of 32mm, is 1mm shorter. On the other hand, the SG-image 25mm F1.8 has a larger diameter of 67mm compared to the Samyang AF 35mm F2.8 FE's 62mm 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. Samyang AF 35mm F2.8 FE weighs 85g, 41% (60g) 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 Samyang AF 35mm F2.8 FE 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 52mm filters that we recommend you to consider for the SG-image 25mm F1.8:
And these are the 49mm filters that we recommend for the Samyang AF 35mm F2.8 FE:
Lens Mounts
Both the SG-image 25mm F1.8 and the Samyang AF 35mm F2.8 FE 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 Samyang AF 35mm F2.8 FE is a prime lens with fixed focal lenght of 35mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 52.5mm.
