Sigma AF 18-125mm f/3.5-5.6 DC

The lens has a wide range of focal lengths, from wide angle to telephoto, making it versatile for different types of photography. It has both autofocus and manual focus options, allowing for more control over the focus. The lens is made up of multiple lens elements that are coated to reduce flare and ghosting, resulting in clearer and more vibrant photos. The lens has a variable aperture, meaning the maximum aperture changes as you zoom in or out. The build quality is decent, but not as sturdy as higher-end lenses. The resolution is good enough for everyday use, but may not be as sharp as more expensive lenses. Overall, the Sigma AF 18-125mm f/3.5-5.6 DC lens is a good option for those who want a versatile lens for their aps-c camera, but may want to consider other alternatives if they are looking for higher quality optics.

Optical design

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. Full frame equivalent focal length is 27.0-187.5 mm. Average brightness in this league

Physical characteristics

77 mm long, requires consideration if you want to carry in the camera bag. Weights 385 grams so plan ahead, carry only if really necessary. 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.