Sigma DC 18-250mm f/3.5-6.3 Macro OS HSM

The Sigma DC 18-250mm f/3.5-6.3 Macro OS HSM is a camera glass with a wide range of focal lengths suitable for aps-c cameras. It has a macro feature that can capture small objects in detail. The lens has a motor that can focus quickly and quietly. The aperture has seven blades that can create a circular out of focus effect. The lens weighs 465 grams and is 89 mm long, so it may be heavy and bulky to carry around. The lens filter diameter is 62 mm, which is not commonly used, so you may need to purchase an adapter.

Positives:
– Good all-around general purpose lens
– Produces sharp images
– Capable of macro photography
– Compact and easy to keep on the camera
– Comparable results to more expensive lenses

Negatives:
– Slightly soft wide open
– Images at full length of 250mm could be sharper

Conclusion:
The Sigma DC 18-250mm f/3.5-6.3 Macro OS HSM camera lens performs well as a general purpose lens. It is compact and produces sharp images, though there is a slight softness when shooting wide open and at full length. Overall, this lens is a great option for those looking for an all-in-one lens to keep on their camera for everyday use.

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. It is a ring-type ultrasonic motor designed to provide quick and silent focusing. Full frame equivalent focal length is 27.0-375.0 mm. Thanks to the macro capabilities this lens can make tiny things look big.

Physical characteristics

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. Weights 465 grams so plan ahead, carry only if really necessary. 89 mm long, requires consideration if you want to carry in the camera bag.