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Εστιαστής Crayford 2" με μετάδοση 1:10 για νευτώνια τηλεσκόπια TSFOCN2M

TS-OPTICS

In comparison to conventional crayford or rack & pinion drives, this micro-geared movement has zero backlash, zero cogging, and zero flexure.

Available Upon Request

Availability: In stock

SKU

TSFOCN2M

Details

2" BDS-NT Baader Diamond Steeltrack Focuser

General Specifications for all Baader Diamond Steeltrack® (BDS) focusers:

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 / ½") 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

BDS-NT Mounting instructions on an 8" Newtonian telescope in nine simple steps

Remove current Focuser
Remove screws and spacers of BDS-NT Diamond Steeltrack
Loosely mount new focuser using the old holes
Remove focuser from VersaBase by opening 8x hex screws
Use old screws and nuts for centering VersaBase plate
Drill four new 5mm holes (straight to tube center) in the middle of each elongated cutout
Attach radial sliding bolts, fasten from inside out with hex tool as shown
Remove old screws. VersaBase plate is now adjustable for your needs
Attach Diamond Steeltrack in prefered position, tighten 8x hex-screws

Our mounting instruction above was made on a 8" Newtonian – for these instruments our strip shims (adjustment spacers) are not needed. For other tube diameters, please use our strip shims between the telescope tube and the Baader VersaBase (the base of our BDS-NT Diamond Steeltrack). You gain up to 4mm height. Please note the self-explanatory gif to the left.

More Information

More Information
Net Weight (g)	700

Additional Features

FOCUSER TRAVEL: 40 mm
PAYLOAD CAPACITY (KG): 6 kg
INNER DIAMETER / CLEAR APERTURE (MM): 55
SHORTEST OVERALL HEIGHT (STANDARD): 63 mm
SHORTEST OVERALL HEIGHT (W. OPT. ADAPTERS): 50 mm
REDUCTION: 1:10
ROTATABLE: Yes
FINDER BASE: No
MOTORIZED: No, but can be upgraded
SPECIAL FEATURES: True diamonds form a micro-geared high precision drive system
INCLUDED ACCESSORIES: Includes Baader Versabase, for perfect fit onto most tube diameters. Optional flat mounting base also available
OUTER CONNECTION (LENS SIDED): Dovetail ring, S88
INNER CONNECTION (EYEPIECE/-CAMERA-SIDED): Thread, Clamp, Dovetail ring clamp, M55, S58, 2" (50,8mm)
OPTIONAL ACCESSORIES: Baader Steeldrive temperature compensating motor drive system
COMPATIBLE TELESCOPES: Newton
FOCUSER STYLE: Crayford
FOCUSER SIZE: 2 inch