Manfrotto ProBall 468 brand_Walz 6 OSS lens is in

6 OSS lens is in excellent condition

obviously homemade

Interior dimensions are approximately 2x2

Am I crazy

The autofocus speed is not as lightning-quick as Nikon's huge professional 200-400mm f4 VR

Manfrotto ProBall 468 brand_Walz 6 OSS lens is inThe Manfrotto Proball 468 is a heavy duty ball head specced to support up to 10kg but, like most classic Manfrotto equipment, that's a conservative number. The Proball 468 has a very tactile click stopped friction adjustment and an easy to grip control knob. The top does not have a quick release it's a self adapting 1 4" 3 8" thread but the platform is nice and broad. Like all of these Proball heads, this one's made out of heavy aluminum alloy with a