Sigma AF Zoom 28-200mm f/3.8-5.6 UC

This camera glass has a focal length range of 28-200mm, which is a versatile range for different types of photography, from wide-angle landscapes to telephoto portraits. It has both manual and autofocus options, giving the photographer more control over the focus. The lens has 14 elements in 10 groups, which is a decent number of elements for a lens in this range. The lens coating helps to reduce glare and ghosting, which can improve the quality of the photos taken with the lens.

The aperture range of f/3.8-5.6 is decent, but not the widest available. The build quality is good, and the lens feels solid in the hand. It was manufactured some time ago, so it may not have the latest technology available in newer lenses.

Overall, this photographic lens is a good option for those who need a versatile lens for different types of photography. However, there are other alternatives available in the market that may offer better resolution, bokeh, or aperture range.

Positive:
The Sigma AF Zoom 28-200mm f/3.8-5.6 UC camera lens is an excellent product that delivers beautiful pictures. It produces great image quality and is versatile enough for different photography styles and situations. The zoom range of 28-200mm allows me to capture a wide range of subjects, from landscapes to portraits, with ease. The lens is well constructed and feels sturdy in the hand.

Negative:
One downside of this lens is that it may suffer from vignetting and distortion at the extreme ends of the zoom range. However, these can be corrected in post-processing. The lens can also be quite heavy and bulky, which may not be ideal for travel photography.

Conclusion:
Overall, the Sigma AF Zoom 28-200mm f/3.8-5.6 UC camera lens is a great option for photographers who want a versatile lens that delivers excellent image quality. It may have some minor drawbacks, but they are easily manageable. If you are looking for a lens that can handle a wide range of photography styles and situations, this lens is definitely worth considering.

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.

Physical characteristics

With a lens filter diameter of 72 mm you are one step from the next standard filter size, buy step-up ring and bigger filter but you can chose from plenty options. 78 mm long, requires consideration if you want to carry in the camera bag. Weights 450 grams so plan ahead, carry only if really necessary.