Sigma 18-200mm f/3.5-6.3 DC OS HSM II

The Sigma 18-200mm f/3.5-6.3 DC OS HSM II is a camera glass that can be used to zoom in and out on subjects. It is compatible with certain cameras and has alternatives for different mounts. It can focus automatically or manually and has lens elements that help create sharp images. It also has a lens coating that helps reduce glare and reflections. The lens has a mid-grade build quality and can provide good resolution in good lighting conditions. The aperture has 7 blades and can create a pleasing bokeh effect. The lens is 88mm long and weighs 490 grams, so it may not be the most portable option. The lens filter diameter is 62mm, which is not commonly used, so additional equipment may be needed. The manufacturing time is not mentioned.

Optical design

It is a ring-type ultrasonic motor designed to provide quick and silent focusing. Great choice mainly for good light conditions Full frame equivalent focal length is 27.0-300.0 mm. Has 7 aperture blades, mid-grade lenses usually have this amount of blades. Having rounded blades provides out of focus circle shape closer to a circle.

Physical characteristics

Weights 490 grams so plan ahead, carry only if really necessary. 88 mm long, requires consideration if you want to carry in the camera bag. With a lens filter diameter of 62 mm you are one step from the next standard filter size, buy step-up ring and bigger filter you may want to use a step-up ring and 67 or 77mm filter.