The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 24-105mm F4 G OSS and the Sigma 18-250mm F3.5-6.3 DC OS HSM 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. Sony FE 24-105mm F4 G OSS is the longer of the two lenses at 113mm. The Sigma 18-250mm F3.5-6.3 DC OS HSM with a length of 101mm, is 12mm shorter. Besides being longer, the Sony FE 24-105mm F4 G OSS also has a larger diameter of 83mm compared to the Sigma 18-250mm F3.5-6.3 DC OS HSM's 79mm 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. Sigma 18-250mm F3.5-6.3 DC OS HSM weighs 628g, 5% (35g) lighter than the Sony FE 24-105mm F4 G OSS's weight of 663g.
Filter Threads
The Sony FE 24-105mm F4 G OSS has a filter size of 77mm whereas the Sigma 18-250mm F3.5-6.3 DC OS HSM has a 72mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 77mm filters that we recommend you to consider for the Sony FE 24-105mm F4 G OSS:
And these are the 72mm filters that we recommend for the Sigma 18-250mm F3.5-6.3 DC OS HSM:
Lens Mounts
The Sony FE 24-105mm F4 G OSS has the Sony E lens mount whereas the Sigma 18-250mm F3.5-6.3 DC OS HSM has the Nikon F (DX) lens mount. Some of the latest released cameras that are compatible with these mounts are Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount and Nikon D3500, Nikon D7500 and Nikon D5600 for the Nikon F (DX) Mount.
Sigma 18-250mm F3.5-6.3 DC OS HSM is also available in Canon EF , Nikon F (DX), Pentax KAF3, Sony Alpha, Sigma SA, Canon EF, Pentax KAF3, Sony Alpha and Sigma SA mounts.
Focal Range
Sony FE 24-105mm F4 G OSS has a focal range of 24-105mm and
4.4X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
36 - 157.5mm.
On the other hand, the Sigma 18-250mm F3.5-6.3 DC OS HSM has a focal range of 18-250mm and 13.9X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 27-375mm when used on a APS-C / DX format camera.
