After owning the 16-35mm f/2.8 for 5 years and shoots a LOT of landscape and real estate images, I was intrigued by the great reputation this new f/4 lens was getting. I finally pulled teh trigger, sold the 16-35/2.8 and bought this, and the rumors are all true: the image quality on this lens is...

This is a spectacular lens! Fabulous image quality with minimal distortion, great contrast and color saturation. It is heavy, but the quality of construction and the resulting images are well worth the price and extra weight.

Another winner by Canon. I find this lens very difficult to find faults with. In fact this might be the first time I could not come up with a Con for this lens. Initially I thought the only possible negative I could come up with is that F/4 is not enough for certain astrophotography situations.

Landscape dream lens; 77mm Threads; Sharp images corner to corner even at F/4; IS; Locking Lens Hood

Not really; but in specific astrophotography situations; the aperture is not wide enough

I converted to L series lenses a few years back and was blown away by the quality of the images and the lens build quality. Having said that, my budget doesn't stretch to the f28 lenses. The f4 lenses are on my radar and im very happy with the results.

Hey AllAlways I used to go with my Great Combo 5dm3 with 70-200 ii which is always giving me the "WOW" pictures.But for long time I was not happy with wide angle focal length with 24-105/24-70 2.8 ii/16-35 2.8Then later I bought this lens after seeing the paper configuration and it blows me away :...

Sharp

Distortion 16mm

Image quality is fantastic and is fairly easy to operate though is a bit bulky. i now need to review my own technical skills.

Bulky

For the first few days I was dissapointed but later i have realised this is much better for shooting flats than the Zeiss 18 3.5 ZE i had before. It's great for wide angle shoots and ok for portraits at 35mm but I wish Canon would just make lens like Zeiss 15mm 2.8 for the price of the 16-35 4 IS

Versatile, IS is a killer good, distorsion in not bad; Sharpness is not too bad in corners

I guess it's sharper than other canon wide zooms but not as close as sharp as Zeiss 21mm 2.8 ZE; Out of focus part seem a bit weird as if they are result of camera shake

Abbe paglagayo keya? price se 1 lakh kam kar, jo maan me aya likh diya

Pros - Ultra-wide angle - Great image quality throughout the image - Includes IS - Great price for what you get Cons - f4, but expected given the price - Minor barrel distortion, but totally acceptable given the wide angle - Physically a bit larger than I would have liked, but is acceptable

"When I bought my 6D a year and a half ago, it comes with the 24-105mm lens. For a while I was content with it. However there were times when I'm shooting my clients backyard projects, or interior and exterior scenes when I can get wide enough.