The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Pentax 12-24mm F4.0 ED AL and the Sony E 10-18mm F4 OSS 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 12-24mm F4.0 ED AL is the longer of the two lenses at 84mm. The Sony E 10-18mm F4 OSS with a length of 64mm, is 20mm shorter. Besides being longer, the Pentax 12-24mm F4.0 ED AL also has a larger diameter of 88mm compared to the Sony E 10-18mm F4 OSS'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. Sony E 10-18mm F4 OSS weighs 225g, 47% (205g) lighter than the Pentax 12-24mm F4.0 ED AL's weight of 430g.
Filter Threads
The Pentax 12-24mm F4.0 ED AL has a filter size of 77mm whereas the Sony E 10-18mm F4 OSS 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 77mm filters that we recommend you to consider for the Pentax 12-24mm F4.0 ED AL:
And these are the 62mm filters that we recommend for the Sony E 10-18mm F4 OSS:
Lens Mounts
The Pentax 12-24mm F4.0 ED AL has the Pentax KAF lens mount whereas the Sony E 10-18mm F4 OSS has the Sony E lens mount. Some of the latest released cameras that are compatible with these mounts are Pentax K-3 III Mono, Pentax KF and Pentax K-3 III for the Pentax KAF Mount and Sony ZV-E10 II, Sony A6700 and Sony FX30 for the Sony E Mount.
Focal Range
Pentax 12-24mm F4.0 ED AL has a focal range of 12-24mm and
2.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
18-36mm when used on a APS-C / DX format camera.
On the other hand, the Sony E 10-18mm F4 OSS has a focal range of 10-18mm and 1.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 15-27mm when used on a APS-C / DX format camera.
