The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Panasonic 45-200mm F4-5.6 II Power OIS and the Olympus 75-300mm f4.8-6.7 II 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. Olympus 75-300mm f4.8-6.7 II is the longer of the two lenses at 117mm. The Panasonic 45-200mm F4-5.6 II Power OIS with a length of 100mm, is 17mm shorter. On the other hand, the Panasonic 45-200mm F4-5.6 II Power OIS has a larger diameter of 70mm compared to the Olympus 75-300mm f4.8-6.7 II's 69mm 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. Panasonic 45-200mm F4-5.6 II Power OIS weighs 370g, which means it is 53g (12%) lighter than the Olympus 75-300mm f4.8-6.7 II which has a weight of 423g.
Below you can find the dimension and weight table of the Telephoto Zoom Lenses in Micro Four Thirds Mount for size comparison purposes.
Super Telephoto Lenses in Micro Four Thirds Mount for Size Comparison
Filter Threads
The Panasonic 45-200mm F4-5.6 II Power OIS has a filter size of 52mm whereas the Olympus 75-300mm f4.8-6.7 II has a 58mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 52mm filters that we recommend you to consider for the Panasonic 45-200mm F4-5.6 II Power OIS:
And these are the 58mm filters that we recommend for the Olympus 75-300mm f4.8-6.7 II:
Lens Mounts
Both the Panasonic 45-200mm F4-5.6 II Power OIS and the Olympus 75-300mm f4.8-6.7 II has the same Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with the Micro Four Thirds lenses are OM System OM-1 II, Panasonic G9 II and OM System OM-5.
Focal Range
Panasonic 45-200mm F4-5.6 II Power OIS has a focal range of 45-200mm and
4.4X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
90-400mm when used on a FourThirds format camera.
On the other hand, the Olympus 75-300mm f4.8-6.7 II has a focal range of 75-300mm and 4.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 150-600mm when used on a FourThirds format camera.