The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Voigtlander 75mm f1.5 RF and the Samyang AF 85mm F1.4 RF 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. Samyang AF 85mm F1.4 RF is the longer of the two lenses at 98mm. The Voigtlander 75mm f1.5 RF with a length of 72mm, is 26mm shorter. Besides being longer, the Samyang AF 85mm F1.4 RF also has a larger diameter of 88mm compared to the Voigtlander 75mm f1.5 RF's 74mm 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. Voigtlander 75mm f1.5 RF weighs 525g, which means it is 59g (10%) lighter than the Samyang AF 85mm F1.4 RF which has a weight of 584g.
Below you can find the dimension and weight table of the Telephoto Prime Lenses in Canon RF Mount for size comparison purposes.
Telephoto Lenses in Canon RF Mount for Size Comparison
Filter Threads
The Voigtlander 75mm f1.5 RF has a filter size of 62mm whereas the Samyang AF 85mm F1.4 RF has a 77mm 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 Voigtlander 75mm f1.5 RF:
And these are the 77mm filters that we recommend for the Samyang AF 85mm F1.4 RF:
Lens Mounts
Both the Voigtlander 75mm f1.5 RF and the Samyang AF 85mm F1.4 RF has the same Canon RF lens mount. Some of the latest released cameras that are compatible with the Canon RF lenses are RED Komodo-X 6K, RED Komodo 6K and Canon EOS C70.
Focal Range
Voigtlander 75mm f1.5 RF is a prime lens with fixed focal lenght of 75mm which has an effective (full-frame 35mm equivalent) focal range of
112.5mm when used on a 35mm FF format camera.
On the other hand, the Samyang AF 85mm F1.4 RF is a prime lens with fixed focal lenght of 85mm.
