The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 18-50mm F2.8 DC DN C and the Samsung 16-50mm F3.5-5.6 Power Zoom 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 18-50mm F2.8 DC DN C is the longer of the two lenses at 75mm. The Samsung 16-50mm F3.5-5.6 Power Zoom with a length of 31mm, is 44mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 65mm.
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. Samsung 16-50mm F3.5-5.6 Power Zoom weighs 111g, 61% (179g) lighter than the Sigma 18-50mm F2.8 DC DN C's weight of 290g.
Filter Threads
The Sigma 18-50mm F2.8 DC DN C has a filter size of 55mm whereas the Samsung 16-50mm F3.5-5.6 Power Zoom has a 43mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 55mm filters that we recommend you to consider for the Sigma 18-50mm F2.8 DC DN C:
And these are the 43mm filters that we recommend for the Samsung 16-50mm F3.5-5.6 Power Zoom:
Lens Mounts
The Sigma 18-50mm F2.8 DC DN C has the Leica L lens mount whereas the Samsung 16-50mm F3.5-5.6 Power Zoom has the Samsung NX lens mount. Some of the latest released cameras that are compatible with these mounts are Leica TL2, Leica TL and Leica T Typ 701 for the Leica L Mount and Samsung NX1, Samsung NX3000 and Samsung NX30 for the Samsung NX Mount.
Sigma 18-50mm F2.8 DC DN C is also available in the Sony E and Fujifilm X mounts.
Focal Range
Sigma 18-50mm F2.8 DC DN C has a focal range of 18-50mm and
2.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
27-75mm when used on a APS-C / DX format camera.
On the other hand, the Samsung 16-50mm F3.5-5.6 Power Zoom has a focal range of 16-50mm and 3.1X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 24-75mm when used on a APS-C / DX format camera.