The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 28-300mm f3.5-6.3 VC PZD and the Nikon 18-140mm f3.5-5.6G ED VR 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. Nikon 18-140mm f3.5-5.6G ED VR is the longer of the two lenses at 97mm. The Tamron 28-300mm f3.5-6.3 VC PZD with a length of 96mm, is 1mm shorter. Besides being longer, the Nikon 18-140mm f3.5-5.6G ED VR also has a larger diameter of 78mm 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. Nikon 18-140mm f3.5-5.6G ED VR weighs 490g, 9% (50g) lighter than the Tamron 28-300mm f3.5-6.3 VC PZD's weight of 540g.
Filter Threads
Both the Tamron 28-300mm f3.5-6.3 VC PZD and the Nikon 18-140mm f3.5-5.6G ED VR have the same Filter thread size of 67mm.
Below are links to the 67mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Tamron 28-300mm f3.5-6.3 VC PZD has the Nikon F (FX) lens mount whereas the Nikon 18-140mm f3.5-5.6G ED VR has the Nikon F (DX) lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount and Nikon D3500, Nikon D7500 and Nikon D5600 for the Nikon F (DX) Mount.
Tamron 28-300mm f3.5-6.3 VC PZD is also available in the Canon EF and Sony Alpha mounts.
Focal Range
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 1.5x crop, it provides a 35mm (FF) equivalent of
42 - 450mm.
On the other hand, the Nikon 18-140mm f3.5-5.6G ED VR has a focal range of 18-140mm and 7.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 27-210mm when used on a APS-C / DX format camera.
