The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 85mm F1.4 DG DN A and the Tokina Opera 50mm F1.4 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. Tokina Opera 50mm F1.4 is the longer of the two lenses at 108mm. The Sigma 85mm F1.4 DG DN A with a length of 94mm, is 14mm shorter. On the other hand, the Sigma 85mm F1.4 DG DN A has a larger diameter of 83mm compared to the Tokina Opera 50mm F1.4's 80mm 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 85mm F1.4 DG DN A weighs 630g, which means it is 320g (33%) lighter than the Tokina Opera 50mm F1.4 which has a weight of 950g.
Filter Threads
The Sigma 85mm F1.4 DG DN A has a filter size of 77mm whereas the Tokina Opera 50mm F1.4 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 77mm filters that we recommend you to consider for the Sigma 85mm F1.4 DG DN A:
And these are the 72mm filters that we recommend for the Tokina Opera 50mm F1.4:
Lens Mounts
The Sigma 85mm F1.4 DG DN A has the Leica L lens mount whereas the Tokina Opera 50mm F1.4 has the Nikon F (FX) lens mount. Some of the latest released cameras that are compatible with these mounts are Leica SL3-P, Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount and Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount.
Tokina Opera 50mm F1.4 is also available in Canon EF mount.
Focal Range
Sigma 85mm F1.4 DG DN A is a prime lens with fixed focal lenght of 85mm.
On the other hand, the Tokina Opera 50mm F1.4 is a prime lens with fixed focal lenght of 50mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 75mm.
