The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Olympus ED 40-150mm F2.8 Pro and the Sigma 60mm F2.8 DN 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 ED 40-150mm F2.8 Pro is the longer of the two lenses at 160mm. The Sigma 60mm F2.8 DN with a length of 56mm, is 104mm shorter. Besides being longer, the Olympus ED 40-150mm F2.8 Pro also has a larger diameter of 79mm compared to the Sigma 60mm F2.8 DN's 61mm 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 60mm F2.8 DN weighs 190g, 75% (570g) lighter than the Olympus ED 40-150mm F2.8 Pro's weight of 760g.
Filter Threads
The Olympus ED 40-150mm F2.8 Pro has a filter size of 72mm whereas the Sigma 60mm F2.8 DN has a 46mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 72mm filters that we recommend you to consider for the Olympus ED 40-150mm F2.8 Pro:
And these are the 46mm filters that we recommend for the Sigma 60mm F2.8 DN:
Lens Mounts
Both the Olympus ED 40-150mm F2.8 Pro and the Sigma 60mm F2.8 DN 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.
Sigma 60mm F2.8 DN is also available in Sony E mount.
Focal Range
Olympus ED 40-150mm F2.8 Pro has a focal range of 40-150mm and
3.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
80-300mm when used on a FourThirds format camera.
On the other hand, the Sigma 60mm F2.8 DN is a prime lens with fixed focal lenght of 60mm which has an effective (full-frame 35mm equivalent) focal range of 90mm when used on a APS-C / DX format camera.
