The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 70-200mm F2.8 EX DG HSM II and the Olympus ED 150mm f2.0 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. Sigma 70-200mm F2.8 EX DG HSM II is the longer of the two lenses at 184mm. The Olympus ED 150mm f2.0 with a length of 150mm, is 34mm shorter. On the other hand, the Olympus ED 150mm f2.0 has a larger diameter of 100mm compared to the Sigma 70-200mm F2.8 EX DG HSM II's 87mm 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. Sigma 70-200mm F2.8 EX DG HSM II weighs 1390g, which means it is 220g (13%) lighter than the Olympus ED 150mm f2.0 which has a weight of 1610g.
Filter Threads
The Sigma 70-200mm F2.8 EX DG HSM II has a filter size of 77mm whereas the Olympus ED 150mm f2.0 has a 82mm 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 Sigma 70-200mm F2.8 EX DG HSM II:
And these are the 82mm filters that we recommend for the Olympus ED 150mm f2.0:
Lens Mounts
Both the Sigma 70-200mm F2.8 EX DG HSM II and the Olympus ED 150mm f2.0 has the same Four Thirds lens mount. Some of the latest released cameras that are compatible with the Four Thirds lenses are Olympus E-5, Olympus E-600 and Olympus E-620.
Sigma 70-200mm F2.8 EX DG HSM II is also available in the Canon EF , Pentax KAF3, Sony Alpha, Sigma SA and Nikon F (FX) mounts.
Focal Range
Sigma 70-200mm F2.8 EX DG HSM II has a focal range of 70-200mm and
2.9X zoom ratio .
On the other hand, the Olympus ED 150mm f2.0 is a prime lens with fixed focal lenght of 150mm which has an effective (full-frame 35mm equivalent) focal range of 300mm when used on a FourThirds format camera.