The type of photography that you are planning to use is an important decision factor. Here we have evaluated the OM System 25mm F1.8 II 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. Lensbaby Velvet 56 is the longer of the two lenses at 86mm. The OM System 25mm F1.8 II with a length of 41mm, is 45mm shorter. Besides being longer, the Lensbaby Velvet 56 also has a larger diameter of 72mm compared to the OM System 25mm F1.8 II's 56mm diameter.
Below you can find a scaled side-by-side image of OM System 25mm F1.8 II and Lensbaby Velvet 56 to get a better idea of how their sizes compare in real life.
Comparison image of the OM System 25mm F1.8 II 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. OM System 25mm F1.8 II weighs 156g, which means it is 244g (61%) lighter than the Lensbaby Velvet 56 which has a weight of 400g.
Below you can find the dimension and weight table of the Standard Prime Lenses in Micro Four Thirds Mount for size comparison purposes.
Standard Lenses in Micro Four Thirds Mount for Size Comparison
Filter Threads
The OM System 25mm F1.8 II has a filter size of 46mm 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 46mm filters that we recommend you to consider for the OM System 25mm F1.8 II:
And these are the 62mm filters that we recommend for the Lensbaby Velvet 56:
Lens Mounts
Both the OM System 25mm F1.8 II and the Lensbaby Velvet 56 has the same Micro Four Thirds lens mount . Some of the latest released cameras that are compatible with the Micro Four Thirds lenses are OM System OM-3 Astro , OM System OM-5 II and OM System OM-3 .
Lensbaby Velvet 56 is also available in Canon EF , Fujifilm X , Nikon F (FX) , Pentax KAF3 , Samsung NX , Sony Alpha and Sony E mounts.
Focal Range
OM System 25mm F1.8 II is a prime lens with fixed focal lenght of 25mm which has an effective (full-frame 35mm equivalent) focal range of
50mm when used on a FourThirds format camera.
On the other hand, the Lensbaby Velvet 56 is a prime lens with fixed focal lenght of 56mm.