The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Brightin Star 60mm f2.8 II and the OM System 90mm F3.5 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 90mm F3.5 Macro is the longer of the two lenses at 136mm. The Brightin Star 60mm f2.8 II with a length of 118mm, is 18mm shorter. Besides being longer, the OM System 90mm F3.5 Macro also has a larger diameter of 70mm compared to the Brightin Star 60mm f2.8 II's 68mm 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. OM System 90mm F3.5 Macro weighs 453g, 31% (207g) lighter than the Brightin Star 60mm f2.8 II's weight of 660g.
Filter Threads
The Brightin Star 60mm f2.8 II has a filter size of 67mm whereas the OM System 90mm F3.5 Macro has a 62mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 67mm filters that we recommend you to consider for the Brightin Star 60mm f2.8 II:
And these are the 62mm filters that we recommend for the OM System 90mm F3.5 Macro:
Lens Mounts
The Brightin Star 60mm f2.8 II has the MFT lens mount whereas the OM System 90mm F3.5 Macro has the Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with these mounts are OM System OM-3 Astro, OM System OM-5 II and OM System OM-3 for the MFT Mount and OM System OM-3 Astro, OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
Brightin Star 60mm f2.8 II is also available in the Sony E , Nikon Z and Canon RF mounts.
Focal Range
Brightin Star 60mm f2.8 II is a prime lens with fixed focal lenght of 60mm which has an effective (full-frame 35mm equivalent) focal range of
120mm when used on a FourThirds format camera.
On the other hand, the OM System 90mm F3.5 Macro is a prime lens with fixed focal lenght of 90mm which has an effective (full-frame 35mm equivalent) focal range of 180mm when used on a FourThirds format camera.
