The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 28-200mm F2.8-5.6 Di III and the Olympus 12-100mm F4.0 IS Pro for their suitability to various photography scenarios:
Size and Weight Comparison Below you can find a scaled side-by-side image of Tamron 28-200mm F2.8-5.6 Di III and Olympus 12-100mm F4.0 IS Pro to get a better idea of how their sizes compare in real life.
Comparison image of the Tamron 28-200mm F2.8-5.6 Di III and the Olympus 12-100mm F4.0 IS Pro 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. Olympus 12-100mm F4.0 IS Pro weighs 561g, 2% (15g) lighter than the Tamron 28-200mm F2.8-5.6 Di III's weight of 576g.
Filter Threads
The Tamron 28-200mm F2.8-5.6 Di III has a filter size of 67mm whereas the Olympus 12-100mm F4.0 IS Pro 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 28-200mm F2.8-5.6 Di III:
And these are the 72mm filters that we recommend for the Olympus 12-100mm F4.0 IS Pro:
Lens Mounts
The Tamron 28-200mm F2.8-5.6 Di III has the Sony E lens mount whereas the Olympus 12-100mm F4.0 IS Pro has the Micro Four Thirds 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 OM System OM-3 Astro , OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
Focal Range
Tamron 28-200mm F2.8-5.6 Di III has a focal range of 28-200mm and
7.1X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
42 - 300mm .
On the other hand, the Olympus 12-100mm F4.0 IS Pro has a focal range of 12-100mm and 8.3X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 24-200mm when used on a FourThirds format camera.
