Leica 100-400 @ 300mm f6.3 Leica 100-400 @ 300mm f8.0 OM 300/4.5 @ f4.5 OM 300/4.5 @ f5.6 OM 300/4.5 @ f8.0 Panny 100-300 @ 300mm f5.6 Panny 100-300 @ 300mm f6.3 Panny 100-300 @ 300mm f8.0 Oly 75-300 @ 300mm f6.7 Oly 75-300 @ 300mm f8.0