The optical construction is made of 10 elements in 9 groups with one aspherical element. Its minimum focus distance is 0.25m resulting in a max. object magnification of 1:5.5. The aperture mechanism has 7 aperture blades. The filter size is 58mm.

I've had the lens for almost a year using it on a crop camera. Sharpness/Softness: For this review soft means you can just start to see lack of sharpness in an A4 print. Center is sharp at all apertures, the borders are a touch soft at f1.8, corners are noticably soft at F1.8.

The only problem was the box was beat up and the lenses was very dirty on both sides, there were no visible scratches but I got the feeling that the lens was used. No damage but if you spend $500. On a lens I would expect to get it in better condition.

I never wrote a product review before but this lens causes so much confusion across the internet that I couldn't resist offering my opinion. I only use it as a standard prime on a cropped sensor so I'm not referring to it's use as a wide angle lens on a full-frame sensor.

I have owned this lens for almost three years and have used it on a 40d, 60d and a 7d. I love the speed and accuracy of the USM focus system and appreciate the solid build quality and feel of this lens in hand.

Solid Construction. Good low light performance on a T6i. Excellent sharpness at f2.8. Still not bad at f1.8. Nice wide angle without fisheye for a crop DSLR.

I wanted a wide angle prime and was caught between the 24mm f2.8 and the 28mm f1.8. I decided to go with aperture over focal length. I think I made a good choice. This is a good lens, fast focus, sharp images. So far I am pleased with my choice. Thanks again to B&H for their help and fast delivery.

Pros: I grew up with manual focus prime lenses so the Canon EF 28mm f/1.8 feels like home to me. I use the autofocus most of the time ?ò it's spot on and fast, but I like to focus manually, especially with the very shallow depth of field this lens offers at f/1.8, and it has a large and very smooth...

This has been my favorite lens so far. I have another fixed lens of Canon's that I fell in love with & both are great. The images are crisp and clear and they are sturdy/durable.

Love the maximum aperture of 1.8!