Pre marked rings with minimums of 6’ and 10’ accessories cmotion cPRO By Bill Robinson on 6/24/20, 12:13 AM • 24 views I know this has been brought up before but it would be most useful to have 2 more premarked rings of 6’ and 10’ and comparable metric scales. I love the cpro and the new update but am still missing the control over long lenses with pre marked rings. A 150 with the 3’6” ring is to jittery to use. i do not think you need a fancy make your own ring system just the addition of 2 new pre marked rings for imperial and metric . This addition would be most helpful!