The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 18-300mm F3.5-6.3 Di and the Tamron 35-150mm F2.8-4 Di VC OSD 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 35-150mm F2.8-4 Di VC OSD is the longer of the two lenses at 127mm. The Tamron 18-300mm F3.5-6.3 Di with a length of 126mm, is 1mm shorter. Besides being longer, the Tamron 35-150mm F2.8-4 Di VC OSD also has a larger diameter of 84mm compared to the Tamron 18-300mm F3.5-6.3 Di's 76mm diameter.
Below you can find a scaled side-by-side image of Tamron 18-300mm F3.5-6.3 Di and Tamron 35-150mm F2.8-4 Di VC OSD to get a better idea of how their sizes compare in real life.
Comparison image of the Tamron 18-300mm F3.5-6.3 Di and the Tamron 35-150mm F2.8-4 Di VC OSD Size and Weight 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 18-300mm F3.5-6.3 Di weighs 620g, which means it is 170g (21%) lighter than the Tamron 35-150mm F2.8-4 Di VC OSD which has a weight of 790g.
Filter Threads
The Tamron 18-300mm F3.5-6.3 Di has a filter size of 67mm whereas the Tamron 35-150mm F2.8-4 Di VC OSD has a 77mm 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 18-300mm F3.5-6.3 Di:
And these are the 77mm filters that we recommend for the Tamron 35-150mm F2.8-4 Di VC OSD:
Lens Mounts
The Tamron 18-300mm F3.5-6.3 Di has the Sony E lens mount whereas the Tamron 35-150mm F2.8-4 Di VC OSD has the Canon EF lens mount . Some of the latest released cameras that are compatible with these mounts are Sony ZV-E10 II , Sony A6700 and Sony FX30 for the Sony E Mount and Blackmagic URSA 12K LF , Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount.
Tamron 18-300mm F3.5-6.3 Di is also available in the Fujifilm X mount.
Tamron 35-150mm F2.8-4 Di VC OSD is also available in Nikon F (FX) mount.
Focal Range
Tamron 18-300mm F3.5-6.3 Di has a focal range of 18-300mm and
16.7X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
27-450mm when used on a APS-C / DX format camera.
On the other hand, the Tamron 35-150mm F2.8-4 Di VC OSD has a focal range of 35-150mm and 4.3X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 56 - 240mm .