steptoe VIP Member Jun 23, 2019 #21 siilver said: Found this to work out arm length Focal length = (width ^ 3) / (16 * depth * height) A 110 dish can have a arm length of 62cm to 72cm From what I can see Click to expand... Too early for me
siilver said: Found this to work out arm length Focal length = (width ^ 3) / (16 * depth * height) A 110 dish can have a arm length of 62cm to 72cm From what I can see Click to expand... Too early for me