Description DVR90 Guide Scope Rings: Works with both Losmandy D Style and V Series Vixen Style plates. 90mm (3.5") I.D. rings with three point adjustment. Adjustment screws made of 7075 aluminum (85% stronger then 6061), with machined 1/4" Delrin tips. Wt. 25.5 oz. per set 2 rings per set Dovetail mounted with no tools needed I.D. size from 2.48" to 3.78" Ht. from top of dovetail plate to center of rings: D plates=3.265" V plates=3.015" DVR108 Guide Scope Rings: Works with both Losmandy D Style and V Series Vixen Style plates. 108mm (4.25") I.D. rings with three point adjustment. Adjustment screws made of 7075 aluminum (85% stronger then 6061), with machined 1/4" Delrin tips. Wt. 29 oz per set 2 rings per set Dovetail mounted with no tools needed. I.D. size from 2.96" to 4.32" Ht. from top of dovetail plate to center of rings: D plates=3.437" V plates=3.187" DVR108/66: Three Ring AutoGuider Scope Setup. Two Rings hold the AutoGuider Scope while the third Ring stabilizes your camera/guider. (Dovetail plate and Orion 80mm AutoGuider Scope not included. Shown only as an example of use) Works with both D and V series plates. Weight 2 lbs 14 oz DVR125: Works with both Losmandy D Style and V Series Vixen Style plates. 125mm (5.0") I.D. rings with three point adjustment. Adjustment screws made of 7075 aluminum (85% stronger then 6061), with machined 1/4" Delrin tips. Wt. 31.5 oz. per set 2 rings per set Dovetail mounted with no tools needed. I.D. size from 3.66" to 5.02" Ht. from top of dovetail plate to center of rings: D plates=3.837" V plates=3.587" DVR160 Works with both Losmandy D Style and V series Vixen Style plates. 160mm (6.3") I.D. rings with three point adjustment. Adjustment screws made of 7075 Aluminum (85% stronger then 6061), with machined 1/4" Delrin tips. Wt. 41.5 oz per set 2 rings per set Dovetail mounted with no tools needed. I.D. size from 5.3" to 6.3" Ht. from top of dovetail plate to center of rings: D plates=4.65" V plates=4.40"
