The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 150-500mm F5-6.3 and the Pentax 01 Standard Prime 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 150-500mm F5-6.3 is the longer of the two lenses at 252mm. The Pentax 01 Standard Prime with a length of 23mm, is 229mm shorter. Besides being longer, the Sigma 150-500mm F5-6.3 also has a larger diameter of 95mm compared to the Pentax 01 Standard Prime's 46mm 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. Pentax 01 Standard Prime weighs 37g, 97% (1743g) lighter than the Sigma 150-500mm F5-6.3's weight of 1780g.
Filter Threads
The Sigma 150-500mm F5-6.3 has a filter size of 86mm whereas the Pentax 01 Standard Prime has a 41mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 86mm filters that we recommend you to consider for the Sigma 150-500mm F5-6.3:
And these are the 41mm filters that we recommend for the Pentax 01 Standard Prime:
Lens Mounts
The Sigma 150-500mm F5-6.3 has the Canon EF lens mount whereas the Pentax 01 Standard Prime has the Pentax Q lens mount. Some of the latest released cameras that are compatible with these mounts are Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount and , and for the Pentax Q Mount.
Sigma 150-500mm F5-6.3 is also available in the Nikon F (FX) , Pentax KAF3, Sony Alpha and Sigma SA mounts.
Focal Range
Sigma 150-500mm F5-6.3 has a focal range of 150-500mm and
3.3X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
240 - 800mm.
On the other hand, the Pentax 01 Standard Prime is a prime lens with fixed focal lenght of 9mm which has an effective (full-frame 35mm equivalent) focal range of 40.95mm when used on a 1/1.7" format camera.
