The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Pentax-D FA645 35mm F3.5 AL IF and the Pentax DA645 28-45mm F4.5ED 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 DA645 28-45mm F4.5ED is the longer of the two lenses at 152mm. The Pentax-D FA645 35mm F3.5 AL IF with a length of 90mm, is 62mm shorter. Besides being longer, the Pentax DA645 28-45mm F4.5ED also has a larger diameter of 99mm compared to the Pentax-D FA645 35mm F3.5 AL IF's 88mm 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-D FA645 35mm F3.5 AL IF weighs 570g, which means it is 900g (61%) lighter than the Pentax DA645 28-45mm F4.5ED which has a weight of 1470g.
Filter Threads
Both the Pentax-D FA645 35mm F3.5 AL IF and the Pentax DA645 28-45mm F4.5ED have the same Filter thread size of 82mm.
Below are links to the 82mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Pentax-D FA645 35mm F3.5 AL IF and the Pentax DA645 28-45mm F4.5ED has the same Pentax 645AF2 lens mount. Some of the latest released cameras that are compatible with the Pentax 645AF2 lenses are Pentax 645Z, Pentax 645D and .
Focal Range
Pentax-D FA645 35mm F3.5 AL IF is a prime lens with fixed focal lenght of 35mm.
On the other hand, the Pentax DA645 28-45mm F4.5ED is a prime lens with fixed focal lenght of 28-45mm.
