The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samsung 50-150mm F2.8 S and the Samsung 18-200mm F3.5-6.3 ED OIS 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. Samsung 50-150mm F2.8 S is the longer of the two lenses at 154mm. The Samsung 18-200mm F3.5-6.3 ED OIS with a length of 106mm, is 48mm shorter. Besides being longer, the Samsung 50-150mm F2.8 S also has a larger diameter of 81mm compared to the Samsung 18-200mm F3.5-6.3 ED OIS's 72mm 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. Samsung 18-200mm F3.5-6.3 ED OIS weighs 549g, 40% (371g) lighter than the Samsung 50-150mm F2.8 S's weight of 920g.
Filter Threads
The Samsung 50-150mm F2.8 S has a filter size of 72mm whereas the Samsung 18-200mm F3.5-6.3 ED OIS has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 72mm filters that we recommend you to consider for the Samsung 50-150mm F2.8 S:
And these are the 67mm filters that we recommend for the Samsung 18-200mm F3.5-6.3 ED OIS:
Lens Mounts
Both the Samsung 50-150mm F2.8 S and the Samsung 18-200mm F3.5-6.3 ED OIS 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 50-150mm F2.8 S has a focal range of 50-150mm and
3.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
75-225mm when used on a APS-C / DX format camera.
On the other hand, the Samsung 18-200mm F3.5-6.3 ED OIS has a focal range of 18-200mm and 11.1X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 27-300mm when used on a APS-C / DX format camera.
