Baader Planetarium BDS-SC 2″ Diamond Steeltrack Focuser for SC/EdgeHD Telescope


Buy Now

SKU: 4171300115164728 Categories: ,


• Baader Diamond Steeltrack (BDS-SC) for Schmidt-Cassegrains (EdgeHD) with 30 mm focus travel• Minimum height (as supplied – incl. 2″ clamp): 93 mm• Minimum height (with optional S58 direct-thread adapters): 80 mm• Focuser weight (as supplied – incl. 2″ Klemme): 1.040 g (36.7 oz)• Includes adapter to fit all C14/C11/C91/4/C8/C6/C5 OTA’s 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 Clamping System • S58 Dovetail ring-clamp built into focusing tube for accepting optional T-2 / M48 / M68 and other S58 direct-thread adapters to enable direct thread connection of accessories and cameras without 2″ clamp • 2″ eyepiece clamp with hardened bronze clamp ring (length of clamp: 12.5mm / 1/2″) included as standard • Optionally available 2″ Baader Clicklock-clamp w. integrated S58 dovetail (added length: 16mm / 5/8″) • Two auxiliary threads (M60x1 and M55x0,75) cut into the RT & NT focusing-tube for attachment of dedicated field flatteners or focal reducers/correctors 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

Additional information



Everybody Hates A Tourist is a travel site featuring stories about food & drink, history, culture, sports, art & architecture, travel guides, the great outdoors, travel tips, travel contests, news, and much more.

Our store features selected travel gear that will help you get the most out of your trip, including luggage & bags, the latest travel tech & gadgets, and outdoor & camping supplies. This page may contain affiliate links. Thank you for your support of the site, and happy traveling!