Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Fujinon MK 18-55mm T2.9 is the longer of the two lenses at 206mm. The Sony E 16-55mm F2.8 G with a length of 100mm is 106mm shorter. Besides being longer, the Fujinon MK 18-55mm T2.9 also has a larger diameter of 85mm compared to Sony E 16-55mm F2.8 G's 73mm diameter.
Below you can find the scaled side by side image of Sony E 16-55mm F2.8 G and Fujinon MK 18-55mm T2.9 to get a better idea of how their size compare in real life.
Weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Sony E 16-55mm F2.8 G weighs 494g, which means it is 486g (98%) lighter than the Fujinon MK 18-55mm T2.9 which has a weight of 980g.
Below you can find the dimension and weight table of the 'Standard Zoom Lenses in Sony E Mount for size comparison purposes.
Standard Zoom Lenses in Sony E Mount for Size Comparison
Both Sony E 16-55mm F2.8 G and Fujinon MK 18-55mm T2.9 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, Sony A6600 and Sony A6100.
Sony E 16-55mm F2.8 G has a focal range of 16-55mm and 3.4X zoom ratio which has a 35mm equivalent focal range of 24-82.5mm when used on a APS-C / DX format camera. Fujinon MK 18-55mm T2.9 has a focal range of 18-55mm and 3.1X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 27 - 82.5mm.