Drive system

• True diamonds form a micro-geared high precision drive system never accomplished before
• In comparison to conventional crayford or rack & pinion drives, this micro-geared movement has zero backlash, zero cogging, and zero flexure
• Diamond Steeltrack® 2" focusers lift a payload of 6kg (13 lbs) straight up, without slipping, without excessive bearing preload (bearing preload can be increased further if necessary)
• Bearing system utilizes unbreakable Instrument Grade Roller-Bearings instead of simpler Ball Bearings - handles higher loads with greater rigidity and accuracy. No Teflon-pads anywhere
• 1:10 Stainless Steel fine-focus mechanism, ready for attachment of the optional Diamond Steeldrive temperature-compensating motor drive system
• Detachable drive block assembly is reversible for right hand or left hand fine-focus operation and for attaching the Diamond Steeldrive motor block
• Shortest possible mechanical design achieves optimum balance between focuser height (backfocus) and rigidity requirements
• Zero shift locking knob to precisely stop any movement without affecting optical axis adjustment

Focusing Drawtube:

• Each bearing individually adjustable for precise alignment of mechanical vs. optical axis
• Ultra-hard subzero coated bearing races – precision milled and much harder than anodizing or stainless steel
• Oversized 55mm inner clear diameter, to prevent vignetting, with anti-reflection knife-edge baffles

FASTENING SYSTEM :

• The S58 dovetail clamp ring built into the focus tube to accommodate optional T-2/M48/M68 and S58 direct threaded adapters and other 2” clampless accessories and cameras
• The 2'' eyepiece clamp with hardened bronze clamp (length: 12.5mm/1/2'') included in the standard version
• Optionally available: Baader S58 2" Clicklock clamp (#2956258) with S58 clamping ring (additional length 16mm/5/8inch)
• Two auxiliary threads (M60x1 and M55x0.75) are present on the RT&NT focusing tube for dedicated attachment to field flatteners or focal reducers or correctors

TELESCOPE ADAPTERS:

• Refractor–BDS(RT):  adapters available or under development to fit a wide variety of refractor telescopes
• BDS Newtonian (NT):  Includes the Versabase Baader, for a perfect fit on most tube diameters.