The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 24-240mm F3.5-6.3 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 24-240mm F3.5-6.3 OSS is the longer of the two lenses at 119mm. The Sigma 18-250mm F3.5-6.3 DC OS HSM with a length of 89mm, is 30mm shorter. Besides being longer, the Sony FE 24-240mm F3.5-6.3 OSS also has a larger diameter of 81mm compared to the Sigma 18-250mm F3.5-6.3 DC OS HSM's 74mm 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 470g, 39% (310g) lighter than the Sony FE 24-240mm F3.5-6.3 OSS's weight of 780g.
Filter Threads
Both the Sony FE 24-240mm F3.5-6.3 OSS and the Sigma 18-250mm F3.5-6.3 DC OS HSM 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
The Sony FE 24-240mm F3.5-6.3 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 , Pentax KAF3, Sony Alpha, Sigma SA, Canon EF, Nikon F (DX), Pentax KAF3, Sony Alpha and Sigma SA mounts.
Focal Range
Sony FE 24-240mm F3.5-6.3 OSS has a focal range of 24-240mm 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
36 - 360mm.
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.
