The type of photography that you are planning to use is an important decision factor. Here we have evaluated the OM SYSTEM 150-600mm f5-6.3 IS and the Tokina 300mm F6.3 MF Macro 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 SYSTEM 150-600mm f5-6.3 IS is the longer of the two lenses at 265mm. The Tokina 300mm F6.3 MF Macro with a length of 66mm, is 199mm shorter. Besides being longer, the OM SYSTEM 150-600mm f5-6.3 IS also has a larger diameter of 110mm compared to the Tokina 300mm F6.3 MF Macro's 55mm 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. Tokina 300mm F6.3 MF Macro weighs 298g, 85% (1762g) lighter than the OM SYSTEM 150-600mm f5-6.3 IS's weight of 2060g.
Filter Threads
The OM SYSTEM 150-600mm f5-6.3 IS has a filter size of 95mm whereas the Tokina 300mm F6.3 MF Macro has a 55mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 95mm filters that we recommend you to consider for the OM SYSTEM 150-600mm f5-6.3 IS:
And these are the 55mm filters that we recommend for the Tokina 300mm F6.3 MF Macro:
Lens Mounts
Both the OM SYSTEM 150-600mm f5-6.3 IS and the Tokina 300mm F6.3 MF Macro 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 SYSTEM 150-600mm f5-6.3 IS has a focal range of 150-600mm and
4.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
300-1200mm when used on a FourThirds format camera.
On the other hand, the Tokina 300mm F6.3 MF Macro is a prime lens with fixed focal lenght of 300mm which has an effective (full-frame 35mm equivalent) focal range of 600mm when used on a FourThirds format camera.
