Lets review standard light lens Yongnuo EF YN 50mm F/1.8 for Canon EF mounts. Its 50 mm focus is fixed, diaphragm can be set in f/1.8 – f/22 range with use of 7 diaphragm blades, its field of view is 46 degrees and minimal focusing distance is 0.45 m. It supports automatic and manual focusing and does not support image stabilization ( which can be performed by camera itself, if it supports it ). 6 lens elements in 5 groups are mounted into it, they all are covered with protective and anti-reflective multicoating. There is ability to attach 52 mm optical filters to it, its sizes are 73 ( diameter ) x 55 ( length ) mm, and mass is 120 g. Package contains : Yongnuo EF YN 50mm F/1.8 photo-lens itself, frontal and rear caps, 52 mm thread frontal cap and user’s guide. It is good standard photo-lens with adequate lens elements amount, high light strength and automatic focusing support, which costs much less, than Canon prime lenses. It will be useful for photos and videos making ( especially if camera supports image stabilization ) by novice and experienced photographers.