The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 50mm F1.4 EX DG HSM and the Lensbaby Sol 45 DSLR 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 EX DG HSM is the longer of the two lenses at 68mm. The Lensbaby Sol 45 DSLR with a length of 39mm, is 29mm shorter. Besides being longer, the Sigma 50mm F1.4 EX DG HSM also has a larger diameter of 85mm compared to the Lensbaby Sol 45 DSLR's 73mm 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. Lensbaby Sol 45 DSLR weighs 144g, 71% (361g) lighter than the Sigma 50mm F1.4 EX DG HSM's weight of 505g.
Lens Mounts
Both the Sigma 50mm F1.4 EX DG HSM and the Lensbaby Sol 45 DSLR has the same Sony Alpha lens mount. Some of the latest released cameras that are compatible with the Sony Alpha lenses are Sony A99 II, Sony A68 and Sony A77 II.
Sigma 50mm F1.4 EX DG HSM is also available in Canon EF , Pentax KAF3, Sigma SA, Nikon F (FX) and Four Thirds mounts.
Lensbaby Sol 45 DSLR is also available in Canon EF , Fujifilm X, Nikon F (FX) and Pentax KAF mounts.
Focal Range
Sigma 50mm F1.4 EX DG HSM 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.
On the other hand, the Lensbaby Sol 45 DSLR is a prime lens with fixed focal lenght of 45mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 67.5mm.