The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 24-70mm F2.8 II and the Lensbaby Burnside 35 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 24-70mm F2.8 II is the longer of the two lenses at 122mm. The Lensbaby Burnside 35 with a length of 70mm, is 52mm shorter. Besides being longer, the Sigma 24-70mm F2.8 II also has a larger diameter of 88mm compared to the Lensbaby Burnside 35'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. Lensbaby Burnside 35 weighs 374g, 49% (361g) lighter than the Sigma 24-70mm F2.8 II's weight of 735g.
Filter Threads
The Sigma 24-70mm F2.8 II has a filter size of 82mm whereas the Lensbaby Burnside 35 has a 62mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 82mm filters that we recommend you to consider for the Sigma 24-70mm F2.8 II:
And these are the 62mm filters that we recommend for the Lensbaby Burnside 35:
Lens Mounts
Both the Sigma 24-70mm F2.8 II and the Lensbaby Burnside 35 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.
Sigma 24-70mm F2.8 II is also available in the Leica L mount.
Lensbaby Burnside 35 is also available in Canon EF , Fujifilm X, Micro Four Thirds, Nikon F (FX), Pentax KAF, Samsung NX and Sony Alpha mounts.
Focal Range
Sigma 24-70mm F2.8 II has a focal range of 24-70mm and
2.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
36 - 105mm.
On the other hand, the Lensbaby Burnside 35 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.
