The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Pentax D FA 24-70mm F2.8 ED SDM WR and the Lensbaby Velvet 56 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. Pentax D FA 24-70mm F2.8 ED SDM WR is the longer of the two lenses at 110mm. The Lensbaby Velvet 56 with a length of 86mm, is 24mm shorter. Besides being longer, the Pentax D FA 24-70mm F2.8 ED SDM WR also has a larger diameter of 89mm compared to the Lensbaby Velvet 56's 72mm diameter.
Below you can find a scaled side-by-side image of Pentax D FA 24-70mm F2.8 ED SDM WR and Lensbaby Velvet 56 to get a better idea of how their sizes compare in real life.
Comparison image of the Pentax D FA 24-70mm F2.8 ED SDM WR and the Lensbaby Velvet 56 Size and Weight 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 Velvet 56 weighs 400g, 49% (387g) lighter than the Pentax D FA 24-70mm F2.8 ED SDM WR's weight of 787g.
Lens Mounts
Both the Pentax D FA 24-70mm F2.8 ED SDM WR and the Lensbaby Velvet 56 has the same Pentax KAF3 lens mount . Some of the latest released cameras that are compatible with the Pentax KAF3 lenses are Pentax K-3 III Mono , Pentax KF and Pentax K-3 III .
Lensbaby Velvet 56 is also available in Canon EF , Fujifilm X , Micro Four Thirds , Nikon F (FX) , Samsung NX , Sony Alpha and Sony E mounts.
Focal Range
Pentax D FA 24-70mm F2.8 ED SDM WR 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 Velvet 56 is a prime lens with fixed focal lenght of 56mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 84mm .