The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 24mm F1.8 EX DG and the Tamron 28-300mm f3.5-6.3 VC PZD 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. Tamron 28-300mm f3.5-6.3 VC PZD is the longer of the two lenses at 96mm. The Sigma 24mm F1.8 EX DG with a length of 83mm, is 13mm shorter. On the other hand, the Sigma 24mm F1.8 EX DG has a larger diameter of 84mm compared to the Tamron 28-300mm f3.5-6.3 VC PZD'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 24mm F1.8 EX DG weighs 485g, which means it is 55g (10%) lighter than the Tamron 28-300mm f3.5-6.3 VC PZD which has a weight of 540g.
Filter Threads
The Sigma 24mm F1.8 EX DG has a filter size of 77mm whereas the Tamron 28-300mm f3.5-6.3 VC PZD has a 67mm 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 Sigma 24mm F1.8 EX DG:
And these are the 67mm filters that we recommend for the Tamron 28-300mm f3.5-6.3 VC PZD:
Lens Mounts
Both the Sigma 24mm F1.8 EX DG and the Tamron 28-300mm f3.5-6.3 VC PZD has the same Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Canon 1D X III, Canon 6D MII and Canon 5D MIV.
Sigma 24mm F1.8 EX DG is also available in Nikon F (FX) , Four Thirds, Pentax KAF, Sony Alpha, Sigma SA, Canon EF, Pentax KAF, Sony Alpha, Sigma SA and Nikon F (FX) mounts.
Tamron 28-300mm f3.5-6.3 VC PZD is also available in Nikon F (FX) and Sony Alpha mounts.
Focal Range
Sigma 24mm F1.8 EX DG is a prime lens with fixed focal lenght of 24mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
38.4mm.
On the other hand, the Tamron 28-300mm f3.5-6.3 VC PZD has a focal range of 28-300mm and 10.7X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 44.8 - 480mm.