The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Pentax 02 Standard Zoom and the Olympus ED 75mm f1.8 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. Olympus ED 75mm f1.8 is the longer of the two lenses at 69mm. The Pentax 02 Standard Zoom with a length of 48mm, is 21mm shorter. Besides being longer, the Olympus ED 75mm f1.8 also has a larger diameter of 64mm compared to the Pentax 02 Standard Zoom's 49mm 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 02 Standard Zoom weighs 96g, which means it is 209g (68%) lighter than the Olympus ED 75mm f1.8 which has a weight of 305g.
Filter Threads
The Pentax 02 Standard Zoom has a filter size of 41mm whereas the Olympus ED 75mm f1.8 has a 58mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 41mm filters that we recommend you to consider for the Pentax 02 Standard Zoom:
And these are the 58mm filters that we recommend for the Olympus ED 75mm f1.8:
Lens Mounts
The Pentax 02 Standard Zoom has the Pentax Q lens mount whereas the Olympus ED 75mm f1.8 has the Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with these mounts are , and for the Pentax Q Mount and OM System OM-3 Astro, OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
Focal Range
Pentax 02 Standard Zoom has a focal range of 5-15mm and
3.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
22.75-68.25mm when used on a 1/1.7" format camera.
On the other hand, the Olympus ED 75mm f1.8 is a prime lens with fixed focal lenght of 75mm which has an effective (full-frame 35mm equivalent) focal range of 150mm when used on a FourThirds format camera.