The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samsung 20mm F2.8 Pancake and the Samsung 16mm F2.4 Pancake for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is an important deciding factor when comparing two lenses. Samsung 20mm F2.8 Pancake is the longer of the two lenses at 25mm. The Samsung 16mm F2.4 Pancake with a length of 24mm, is 1mm shorter. Besides being longer, the Samsung 20mm F2.8 Pancake also has a larger diameter of 62mm compared to the Samsung 16mm F2.4 Pancake's 61mm diameter.
The weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Samsung 20mm F2.8 Pancake weighs 89g, which means it is 1g (1%) lighter than the Samsung 16mm F2.4 Pancake which has a weight of 90g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Samsung NX Mount for size comparison purposes.
Wideangle Prime Lenses in Samsung NX Mount for Size Comparison
Lens Mounts
Both the Samsung 20mm F2.8 Pancake and the Samsung 16mm F2.4 Pancake has the same Samsung NX lens mount. Some of the latest released cameras that are compatible with the Samsung NX lenses are Samsung NX1, Samsung NX3000 and Samsung NX30.
Focal Range
Samsung 20mm F2.8 Pancake is a prime lens with fixed focal lenght of 20mm which has an effective (full-frame 35mm equivalent) focal range of 30mm when used on a APS-C / DX format camera. Samsung 16mm F2.4 Pancake is a prime lens with fixed focal lenght of 16mm which has an effective (full-frame 35mm equivalent) focal range of 24mm when used on a APS-C / DX format camera.