|Closest Focusing||4. m|
|Max. Magnifcation||1:9.1 (0.11x)|
|Filter Size||34 mm|
|Diameter x Length||102 x 287.5 mm|
|Weight||1270 gr (2.8 lb)|
I've tested this lens a few days ago in our local Zoo. The 400mm is a fantastic, well built, lens. The sharpness is very good but my 80-200 f/4 L is a bit sharper.
Great (relatively) small lens and very fast, almost a stop faster than the modern EF 100-400 5.6L. Sharper than the EF zoom as well. I use it on my New F1 and SONY NEX-5 and can focus to about 250 meters using my self developed EdMika EF-FD 0.75mm thick glassless adapter on an EF body.