| Year | 1979 |
| Lens Groups | 10 |
| Lens Element | 10 |
| Aperature Blades | 8 |
| Minimum Aperture | f/22 |
| Closest Focusing | 1. m |
| Max. Magnifcation | 1:14.3 (0.07x) |
| Filter Size | 58 mm |
| Diameter x Length | 69 x 120 mm |
| Weight | 545 gr (1.2 lb) |
| Hood | W-69 |
Images quality of excellent for its age .. have had some really good images from this ... paid less than £70 on UK eBay for this and had my doubts about if from the start for some reason .. however the Lens has shown me to wrong .. it is incredibly Sharpe and has a great vintage feel to ts images .. starting to love it ... my copy has slightly loose focus ring , but other that .. it’s awesome /... IMAGES can be found on 500px guy Butterworth .. tested on Sony A7 ..
This is a great zoom, although it is a variable aperture.
It has good image quality built on a fast aperture. It is great for general photography and covers a good focal range. This is great for full or upper body portraiture. The zooming to the long side makes the front element go deeper in acting as a built in lens hood. It does have a detachable clamp on lens hood, but it can leave some cosmetic issues.
Most of the time, you will find this lens with a dented front due to the clamping down of the lens hood by previous owners which is done by twisting a single knob to fasten itself to the lens. Also, my copy is very noisy when zooming creating this zipping noise, especially when zooming from wide to tele.
This is a great zoom lens for photography but not very good for video due to it's variable aperture. It can be useful, but accommodate for the change in brightness.
Consistent and versatile. Good for day or night since it's so fast, and it's a fraction of the price of its EOS counterparts. Manual focus becomes challenging once you have gotten so accustomed to AF. I would say great for landscapes, but not so much for street photography.