The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang AF 75mm F1.8 X and the Fujifilm 18-55mm F2.8-4 R LM OIS 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. Fujifilm 18-55mm F2.8-4 R LM OIS is the longer of the two lenses at 70mm. The Samyang AF 75mm F1.8 X with a length of 69mm, is 1mm shorter. On the other hand, the Samyang AF 75mm F1.8 X has a larger diameter of 70mm compared to the Fujifilm 18-55mm F2.8-4 R LM OIS's 65mm diameter.
Below you can find a scaled side-by-side image of Samyang AF 75mm F1.8 X and Fujifilm 18-55mm F2.8-4 R LM OIS to get a better idea of how their sizes compare in real life.
Comparison image of the Samyang AF 75mm F1.8 X and the Fujifilm 18-55mm F2.8-4 R LM OIS 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. Samyang AF 75mm F1.8 X weighs 257g, which means it is 53g (17%) lighter than the Fujifilm 18-55mm F2.8-4 R LM OIS which has a weight of 310g.
Filter Threads
The Samyang AF 75mm F1.8 X has a filter size of 62mm whereas the Fujifilm 18-55mm F2.8-4 R LM OIS has a 58mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 62mm filters that we recommend you to consider for the Samyang AF 75mm F1.8 X:
And these are the 58mm filters that we recommend for the Fujifilm 18-55mm F2.8-4 R LM OIS:
Lens Mounts
Both the Samyang AF 75mm F1.8 X and the Fujifilm 18-55mm F2.8-4 R LM OIS has the same Fujifilm X lens mount . Some of the latest released cameras that are compatible with the Fujifilm X lenses are Fujifilm X-T30 III , Fujifilm X-E5 and Fujifilm X-M5 .
Focal Range
Samyang AF 75mm F1.8 X is a prime lens with fixed focal lenght of 75mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
112.5mm .
On the other hand, the Fujifilm 18-55mm F2.8-4 R LM OIS has a focal range of 18-55mm and 3.1X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 27-82.5mm when used on a APS-C / DX format camera.