Canon EF 3.5-4.5 50-200mm 

This lens saw the light of day in 1988. It consists of 16 lenses arranged in 13 groups. 

Max magnification x 0.23

The smallest aperture is 29; a total of 8 aperture blades were installed

Even at f/5.6, the lens offers very pleasing performance

Unfortunately, I didn't have a lens hood available

The lens accepts 58mm screw-in filters

Here is a comparison between aperture 5.6...

The length is 146.4mm with a diameter of 75.6mm

The lens weighs 690g

An unusual, but very practical, focal length range!

As an "L" variant, I could easily fall in love with this lens

When the aperture is wide open, the corners of the image lose a lot of performance

The sharpness can also be seen at 200mm and stopped down!

...and aperture 11 at 200mm