The type of photography that you are planning to use is an important decision factor. Here we have evaluated the OM 50-200mm F2.8 and the Olympus ED 75-300mm f4.8-6.7 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. OM 50-200mm F2.8 is the longer of the two lenses at 226mm. The Olympus ED 75-300mm f4.8-6.7 with a length of 116mm, is 110mm shorter. Besides being longer, the OM 50-200mm F2.8 also has a larger diameter of 91mm compared to the Olympus ED 75-300mm f4.8-6.7's 70mm 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. Olympus ED 75-300mm f4.8-6.7 weighs 430g, 60% (645g) lighter than the OM 50-200mm F2.8's weight of 1075g.
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 OM 50-200mm F2.8 has a filter size of 77mm whereas the Olympus ED 75-300mm f4.8-6.7 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 77mm filters that we recommend you to consider for the OM 50-200mm F2.8:
And these are the 58mm filters that we recommend for the Olympus ED 75-300mm f4.8-6.7:
Lens Mounts
Both the OM 50-200mm F2.8 and the Olympus ED 75-300mm f4.8-6.7 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-3 Astro, OM System OM-5 II and OM System OM-3.
Focal Range
OM 50-200mm F2.8 has a focal range of 50-200mm and
4.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
100-400mm when used on a FourThirds format camera.
On the other hand, the Olympus ED 75-300mm f4.8-6.7 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.
