The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony DT 11-18mm F4.5-5.6 and the Sony 16-35mm F2.8 ZA SSM for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Sony 16-35mm F2.8 ZA SSM is the longer of the two lenses at 114mm. The Sony DT 11-18mm F4.5-5.6 with a length of 81mm is 33mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 83mm.
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 DT 11-18mm F4.5-5.6 weighs 360g, which means it is 540g (60%) lighter than the Sony 16-35mm F2.8 ZA SSM which has a weight of 900g.
Below you can find the dimension and weight table of the 'Wideangle Zoom Lenses in Sony Alpha Mount for size comparison purposes.
Wideangle Zoom Lenses in Sony Alpha Mount for Size Comparison
Both Sony DT 11-18mm F4.5-5.6 and Sony 16-35mm F2.8 ZA SSM has the same Sony Alpha lens mount. Some of the latest released cameras that are compatible with the Sony Alpha lenses are Sony A68, Sony A77 II and Sony A58.
Sony DT 11-18mm F4.5-5.6 has a focal range of 11-18mm and 1.6X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 16.5-27mm when used on a APS-C / DX format camera. Sony 16-35mm F2.8 ZA SSM has a focal range of 16-35mm and 2.2X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 24 - 52.5mm.