The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony DT 35mm F1.8 SAM 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 18-200mm F3.5-6.3 ED OIS is the longer of the two lenses at 106mm. The Sony DT 35mm F1.8 SAM with a length of 52mm, is 54mm shorter. Besides being longer, the Samsung 18-200mm F3.5-6.3 ED OIS also has a larger diameter of 72mm compared to the Sony DT 35mm F1.8 SAM's 70mm 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. Sony DT 35mm F1.8 SAM weighs 170g, which means it is 379g (69%) lighter than the Samsung 18-200mm F3.5-6.3 ED OIS which has a weight of 549g.
Filter Threads
The Sony DT 35mm F1.8 SAM has a filter size of 55mm 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 55mm filters that we recommend you to consider for the Sony DT 35mm F1.8 SAM:
And these are the 67mm filters that we recommend for the Samsung 18-200mm F3.5-6.3 ED OIS:
Lens Mounts
The Sony DT 35mm F1.8 SAM has the Sony Alpha lens mount whereas the Samsung 18-200mm F3.5-6.3 ED OIS has the Samsung NX lens mount. Some of the latest released cameras that are compatible with these mounts are Sony A68, Sony A77 II and Sony A58 for the Sony Alpha Mount and Samsung NX1, Samsung NX3000 and Samsung NX30 for the Samsung NX Mount.
Focal Range
Sony DT 35mm F1.8 SAM is a prime lens with fixed focal lenght of 35mm which has an effective (full-frame 35mm equivalent) focal range of
52.5mm 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.