The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Venus 7.5mm F2 MFT and the Venus 4mm F2.8 FMFT 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. Venus 7.5mm F2 MFT is the longer of the two lenses at 55mm. The Venus 4mm F2.8 FMFT with a length of 26mm, is 29mm shorter. On the other hand, the Venus 4mm F2.8 FMFT has a larger diameter of 61mm compared to the Venus 7.5mm F2 MFT's 50mm diameter.
Below you can find a scaled side-by-side image of Venus 7.5mm F2 MFT and Venus 4mm F2.8 FMFT to get a better idea of how their sizes compare in real life.
Comparison image of the Venus 7.5mm F2 MFT and the Venus 4mm F2.8 FMFT Size and Weight 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. Venus 4mm F2.8 FMFT weighs 135g, 20% (35g) lighter than the Venus 7.5mm F2 MFT's weight of 170g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Micro Four Thirds Mount for size comparison purposes.
Ultra-Wideangle Micro Four Thirds Mount
Lens Mounts
Both the Venus 7.5mm F2 MFT and the Venus 4mm F2.8 FMFT 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
Venus 7.5mm F2 MFT is a prime lens with fixed focal lenght of 7.5mm which has an effective (full-frame 35mm equivalent) focal range of
16mm when used on a FourThirds format camera.
On the other hand, the Venus 4mm F2.8 FMFT is a prime lens with fixed focal lenght of 4mm which has an effective (full-frame 35mm equivalent) focal range of 8mm when used on a FourThirds format camera.
