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

Good lens at a great price, but an Issue with New Canon Cameras. As a general all-purpose lens, the quality of build, the quality of images, and the great price far exceeds my expectations. One can buy a Canon lens for 3x the cost and get the same quality build and quality images, but the price is difference in savingsfrom the Sigma as compared to the Canon lenses. Btw, this Sigma lens and other standard Sigma lenses are off exposure by 1 and 1/3 stops when installed on the new released Canon cameras, such as the 90D. I tested this lens and other Sigma lenses on the Canon 90D, compared to the 7D Mark II and the Gossen Luna Pro light meter. I have to set C1 (programmable) with an exposure compensation of +1 and 1/3 stops. I informed Canon Tech Support and Sigma Tech Support about this issue. I also read an article that the Canon 1DX Mark II has the same uner-exposure issue with Sigma lenses. The older Canon cameras, such as the 7D Mark II and the mirrorless M5 work fine with the Sigma lenses.

Sticks and takes dark pictures I bought this for my wife, who liked my Cannon 18-135 and I thought this would be better because of a greater range. It does zoom in more, but that's the only thing better than Cannon. The unit does not zoom smoothly, but sticks really bad. After reading other reviews, this is a characteristic of this lens. Not good. Also while trying to figure out a way to make it quit sticking, I read that several users were reporting dark pictures, so I experimented. The camera is a Cannon D70. I took a picture in "C" mode and forced "no flash" to let the camera automatically adjust to the lighting. The picture was taken in daylight in a room that was naturally lit, but not bright. The pic taken with the Cannon lens was bright and vivid in colors with excellent light adjustment. The Sigma, however, was dark and muddy and did NOT adjust nicely to the natural light. Because of the sticking, you can not take good videos - ever. Because of the poor light adjustment, you can't take low light pictures - ever. I wish I could submit the low light Cannon vs. Sigma pics.

Best All-in-one Super Zoom Sigma 18-250mm f3.5-6.3 DC OS HSM Macro for Canon The most acclaimed all-in-one super zoom lens. High quality, features and affordability makes it a must have for any DSLR camera. This is the newest model of this lens with Macro, more complex, reduced size, improved close-up ability, fast autofocus, accurate and distinctly sharper. You got it all with this lens, from the distant far away subject to the nearest close up; from the widest scene to the closest detail. You will be able to photograph that far away tower with the diminutive clock as well as photograph the exact time in that clock, all from the same spot. And best of all, it is so little, you can take it anywhere anytime without having to carry several lenses, in fact this is the smallest lens of its kind in the world. The 18-250mm lens is the best super-zoom you can find. Famous are the 28-70 and 70-200 but, even with those you will have to exchange lens every time you change subjects from close to far. Not the case with the 18-250, this is the only zoom that covers everything, period. With this lens you cover wide-angle to telephoto, don’t need any other when you go out with your camera, save space and weight, but more important no need for changing lenses. With 18mm you can take the entire family in a room; with 250mm you can capture a bird that you almost can’t see. Exchanging lenses in the middle of shooting? By the time you find another lens, put it in the camera and start focusing again is too late. This is also a Macro, it allows you to capture very small subjects. You can do it all with these lens and it is small, beautiful and easy to take everywhere. Not to mention Image Stabilizer, you don’t need a tripod.