The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Zeiss Otus 50mm f1.4 and the Sigma 50mm F1.4 DG DN Art 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. Sigma 50mm F1.4 DG DN Art is the longer of the two lenses at 110mm. The Zeiss Otus 50mm f1.4 with a length of 100mm, is 10mm shorter. Besides being longer, the Sigma 50mm F1.4 DG DN Art also has a larger diameter of 78mm compared to the Zeiss Otus 50mm f1.4's 77mm 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 50mm F1.4 DG DN Art weighs 669g, 1% (8g) lighter than the Zeiss Otus 50mm f1.4's weight of 677g.
Below you can find the dimension and weight table of the Standard Prime Lenses in Sony E Mount for size comparison purposes.
Standard Lenses in Sony E Mount for Size Comparison
Filter Threads
The Zeiss Otus 50mm f1.4 has a filter size of 67mm whereas the Sigma 50mm F1.4 DG DN Art has a 72mm 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 Zeiss Otus 50mm f1.4:
And these are the 72mm filters that we recommend for the Sigma 50mm F1.4 DG DN Art:
Lens Mounts
Both the Zeiss Otus 50mm f1.4 and the Sigma 50mm F1.4 DG DN Art has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX5, Sony A7R VI and Sony A7 V.
Zeiss Otus 50mm f1.4 is also available in the Canon RF and Nikon Z mounts.
Sigma 50mm F1.4 DG DN Art is also available in Leica L mount.
Focal Range
Both lenses have the same focal range of
50mm and the fastest aperture of
F1.4.