The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Venus 33mmF0.95 CF APO and the Sigma 35mm F2 DG 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. Venus 33mmF0.95 CF APO is the longer of the two lenses at 83mm. The Sigma 35mm F2 DG DN with a length of 65mm, is 18mm shorter. Besides being longer, the Venus 33mmF0.95 CF APO also has a larger diameter of 72mm compared to the Sigma 35mm F2 DG DN's 70mm 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 35mm F2 DG DN weighs 325g, 44% (265g) lighter than the Venus 33mmF0.95 CF APO's weight of 590g.
Filter Threads
The Venus 33mmF0.95 CF APO has a filter size of 62mm whereas the Sigma 35mm F2 DG DN has a 58mm 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 33mmF0.95 CF APO:
And these are the 58mm filters that we recommend for the Sigma 35mm F2 DG DN:
Lens Mounts
Both the Venus 33mmF0.95 CF APO and the Sigma 35mm F2 DG DN has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A6700, Sony FX30 and Sony ZV-E10.
Sigma 35mm F2 DG DN is also available in Leica L mount.
Focal Range
Venus 33mmF0.95 CF APO is a prime lens with fixed focal lenght of 33mm which has an effective (full-frame 35mm equivalent) focal range of
49.5mm when used on a APS-C / DX format camera.
On the other hand, the Sigma 35mm F2 DG DN is a prime lens with fixed focal lenght of 35mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 52.5mm.