GOWE 2" telescope Helical focuser 0.02mm scale w/AI NI Ultrawide Photography

GOWE 2" telescope Helical focuser 0.02mm scale w/ AI NI Ultrawide Photography

• 2-inch high-precision double helix focuser for telescope/guider; Material: Aluminum ; Focus Exercise: double push-way mobile, inner sleeve force is smallest; The optical diameter:45mm; Full frame size; Focusing accuracy: 0.02 MM; Front (male thread) and rear interfaces interfaces(female thread): M48; Focusing stroke: 40MM; the shortest distance focus: 50MM
• the longest distance focus; 90MM; item Weight: 230 g; Load weight: 2KG; Packing list: One 2" double Helical focuser with 2" adapter as picture show; one 2" AI/NI adapter,and this adapter fit the following camera: D40 D3000 D3100 D5000 D5100 D80 D90 D200 D300,D300S D7000 D3000 D60 and so on...