The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 20-200mm F3.5-6.3 and the Sony E PZ 18-105mm F4 G 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. Sigma 20-200mm F3.5-6.3 is the longer of the two lenses at 118mm. The Sony E PZ 18-105mm F4 G with a length of 110mm, is 8mm shorter. On the other hand, the Sony E PZ 18-105mm F4 G has a larger diameter of 78mm compared to the Sigma 20-200mm F3.5-6.3's 77mm 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 PZ 18-105mm F4 G weighs 482g, 10% (58g) lighter than the Sigma 20-200mm F3.5-6.3's weight of 540g.
Below you can find the dimension and weight table of the SuperZoom Lenses in Sony E Mount for size comparison purposes.
Superzoom Lenses in Sony E Mount for Size Comparison
Filter Threads
Both the Sigma 20-200mm F3.5-6.3 and the Sony E PZ 18-105mm F4 G have the same Filter thread size of 72mm.
Below are links to the 72mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Sigma 20-200mm F3.5-6.3 and the Sony E PZ 18-105mm F4 G has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX5, Sony A7R VI and Sony A7 V.
Sigma 20-200mm F3.5-6.3 is also available in the Leica L mount.
Focal Range
Sigma 20-200mm F3.5-6.3 has a focal range of 20-200mm and
10.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
30 - 300mm.
On the other hand, the Sony E PZ 18-105mm F4 G has a focal range of 18-105mm and 5.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 27-157.5mm when used on a APS-C / DX format camera.
