The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 16-300mm f3.5-6.3 II VC PZD and the Nikon 18-200mm f3.5-5.6G IF-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. Tamron 16-300mm f3.5-6.3 II VC PZD is the longer of the two lenses at 100mm. The Nikon 18-200mm f3.5-5.6G IF-ED VR with a length of 97mm, is 3mm shorter. On the other hand, the Nikon 18-200mm f3.5-5.6G IF-ED VR has a larger diameter of 77mm compared to the Tamron 16-300mm f3.5-6.3 II VC PZD's 75mm 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. Tamron 16-300mm f3.5-6.3 II VC PZD weighs 540g, which means it is 20g (3%) lighter than the Nikon 18-200mm f3.5-5.6G IF-ED VR which has a weight of 560g.
Filter Threads
The Tamron 16-300mm f3.5-6.3 II VC PZD has a filter size of 67mm whereas the Nikon 18-200mm f3.5-5.6G IF-ED VR 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 67mm filters that we recommend you to consider for the Tamron 16-300mm f3.5-6.3 II VC PZD:
And these are the 72mm filters that we recommend for the Nikon 18-200mm f3.5-5.6G IF-ED VR:
Lens Mounts
Both the Tamron 16-300mm f3.5-6.3 II VC PZD and the Nikon 18-200mm f3.5-5.6G IF-ED VR has the same Nikon F (DX) lens mount. Some of the latest released cameras that are compatible with the Nikon F (DX) lenses are Nikon D3500, Nikon D7500 and Nikon D5600.
Tamron 16-300mm f3.5-6.3 II VC PZD is also available in Canon EF and Sony Alpha mounts.
Focal Range
Tamron 16-300mm f3.5-6.3 II VC PZD has a focal range of 16-300mm and
18.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
24-450mm when used on a APS-C / DX format camera.
On the other hand, the Nikon 18-200mm f3.5-5.6G IF-ED VR has a focal range of 18-200mm and 11.1X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 27-300mm when used on a APS-C / DX format camera.