The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 17-28mm F2.8 Di III 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. Tamron 17-28mm F2.8 Di III is the longer of the two lenses at 99mm. The Lensbaby Velvet 56 with a length of 86mm, is 13mm shorter. Besides being longer, the Tamron 17-28mm F2.8 Di III also has a larger diameter of 73mm compared to the Lensbaby Velvet 56's 72mm diameter.
Below you can find a scaled side-by-side image of Tamron 17-28mm F2.8 Di III and Lensbaby Velvet 56 to get a better idea of how their sizes compare in real life.
Comparison image of the Tamron 17-28mm F2.8 Di III 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, 4% (20g) lighter than the Tamron 17-28mm F2.8 Di III's weight of 420g.
Filter Threads
The Tamron 17-28mm F2.8 Di III has a filter size of 67mm whereas the Lensbaby Velvet 56 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 67mm filters that we recommend you to consider for the Tamron 17-28mm F2.8 Di III:
And these are the 62mm filters that we recommend for the Lensbaby Velvet 56:
Lens Mounts
The Tamron 17-28mm F2.8 Di III has the Sony E lens mount whereas the Lensbaby Velvet 56 has the Canon EF lens mount . Some of the latest released cameras that are compatible with these mounts are Sony FX5 , Sony A7R VI and Sony A7 V for the Sony E Mount and Blackmagic URSA 12K LF , Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount.
Fujifilm X , Micro Four Thirds , Nikon F (FX) , Pentax KAF3 , Samsung NX , Sony Alpha and Sony E mounts.
Focal Range
Tamron 17-28mm F2.8 Di III has a focal range of 17-28mm and
1.7X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
25.5 - 42mm .
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 1.6x crop, it provides a 35mm (FF) equivalent of 89.6mm .
