The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 90mm F2.8 Macro G OSS and the Sony E 30mm 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. Sony FE 90mm F2.8 Macro G OSS is the longer of the two lenses at 131mm. The Sony E 30mm F3.5 Macro with a length of 56mm, is 75mm shorter. Besides being longer, the Sony FE 90mm F2.8 Macro G OSS also has a larger diameter of 79mm compared to the Sony E 30mm F3.5 Macro's 62mm 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. Sony E 30mm F3.5 Macro weighs 138g, 77% (464g) lighter than the Sony FE 90mm F2.8 Macro G OSS's weight of 602g.
Below you can find the dimension and weight table of the Macro Prime Lenses in Sony E Mount for size comparison purposes.
Macro Lenses in Sony E Mount for Size Comparison
The Sony FE 90mm F2.8 Macro G OSS has a filter size of 62mm whereas the Sony E 30mm F3.5 Macro has a 49mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 62mm filters that we recommend you to consider for the Sony FE 90mm F2.8 Macro G OSS:
And these are the 49mm filters that we recommend for the Sony E 30mm F3.5 Macro:
Both the Sony FE 90mm F2.8 Macro G OSS and the Sony E 30mm F3.5 Macro has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A9 III, Sony A7C Mark II and Sony A7CR.
Sony FE 90mm F2.8 Macro G OSS is a prime lens with fixed focal lenght of 90mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 135mm
On the other hand, the Sony E 30mm F3.5 Macro is a prime lens with fixed focal lenght of 30mm which has an effective (full-frame 35mm equivalent) focal range of 45mm when used on a APS-C / DX format camera.