The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Venus 15mm f4.5 and the Panasonic 9mm F1.7 ASPH 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. Panasonic 9mm F1.7 ASPH is the longer of the two lenses at 52mm. The Venus 15mm f4.5 with a length of 48mm, is 4mm shorter. On the other hand, the Venus 15mm f4.5 has a larger diameter of 70mm compared to the Panasonic 9mm F1.7 ASPH'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. Panasonic 9mm F1.7 ASPH weighs 130g, 57% (178g) lighter than the Venus 15mm f4.5's weight of 308g.
Filter Threads
The Venus 15mm f4.5 has a filter size of 62mm whereas the Panasonic 9mm F1.7 ASPH 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 62mm filters that we recommend you to consider for the Venus 15mm f4.5:
And these are the 55mm filters that we recommend for the Panasonic 9mm F1.7 ASPH:
Lens Mounts
The Venus 15mm f4.5 has the Nikon Z lens mount whereas the Panasonic 9mm F1.7 ASPH has the Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon ZR, Nikon Z5 II and RED Komodo-X 6K Z for the Nikon Z Mount and OM System OM-3 Astro, OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
Venus 15mm f4.5 is also available in the Sony E , Canon RF and Leica L mounts.
Focal Range
Venus 15mm f4.5 is a prime lens with fixed focal lenght of 15mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
22.5mm.
On the other hand, the Panasonic 9mm F1.7 ASPH is a prime lens with fixed focal lenght of 9mm which has an effective (full-frame 35mm equivalent) focal range of 18mm when used on a FourThirds format camera.
