Baader 2" Diamond Steeltrack Newtonian Focuseur, BA2957230

EUR 368,90 Achat immédiat, EUR 21,90 Livraison, 14-Jour Retours, Garantie client eBay
Vendeur: wolfi24 ✉️ (49.983) 100%, Lieu où se trouve: Parsdorf, DE, Lieu de livraison: WORLDWIDE, Numéro de l'objet: 374778731378 Baader 2" Diamond Steeltrack Newtonian Focuseur, BA2957230. Baader 2" Diamond Steeltrack Newtonian Eye Piece Holder (Focuser)

The completely new construction combines extreme durability and precision with high payload : - Micro-geared drive system with zero backlash, zero cogging, and zero flexure - Almost unbreakable instrument-grade roller-bearings (10 mm width) - Payload 6 kg - 40 mm Drawtube travel - 1:10 stainless steel fine-focus mechanism - Zero shift locking knob to precisely stop any movement without affecting optical axis adjustment - S58 dovetail ring-clamp

2" BDS-NT Diamond Steeltrack® Focuser for Newtonian telescopes

The completely new construction combines extreme durability and precision with high payload!

This focusers for Newtonians has, like the one for refractors, two auxiliary threads (M60x1 and M55x0,75) for attachment of dedicated field flatteners or focal reducers/correctors.

Additionally, the Baader NT Diamond Steeltrack allows for the mounting of miscellaneous adapters at the eyepiece side.

To a larger image, please use the right (or middle) mouse key.

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 6 kg (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 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 Steeldrive motorblock onto Diamond-NT-Steeltracks for Newtonian telescopes

- 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 55 mm clear inner diameter, to prevent vignetting, with anti-reflection knife-edge baffles

Clamping System

- S58 dovetail ring-clamp built into focusing tube for accepting optional T2 / 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: 12.5 mm / œ") included as standard

- Optionally available 2" Baader Clicklock-clamp w. integrated S58 dovetail (added length: 16 mm / 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

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

1. Remove current Focuser

2. Remove screws and spacers of BDS-NT Diamond Steeltrack®

3. Loosely mount new focuser using the old holes

4. Remove focuser from VersaBase by opening 8x hex screws

5. Use old screws and nuts for centering VersaBase plate

6. Drill four new 5 mm holes (straight to tube center) in the middle of each elongated cutout

7. Attach radial sliding bolts, fasten from inside out with hex tool as shown

8. Remove old screws. VersaBase plate is now adjustable for your needs

9. Attach Diamond Steeltrack® in prefered position, tighten 8x hex-screws

Using NT-strip-shims of Baader VersaBase for different tube sizes

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

To a larger image, please use the right (or middle) mouse key.

 

Technical Data:

- Drawtube Travel: 40 mm

- Payload: 6 kg

- Fine focusing: 1/10

- Special feature: Micro-geared drive system made of diamonds

- Bearing: Roller-Bearing, 10 mm width, adjustable

- Clear aperture: 55 mm

- Telescope side connection: supplied Baader VersaBase for most tube diameters, optional flat base plate

- Focus side clamping: S58 dovetail ring-clamp for accepting of S58 direct-thread adapters

- Focus side eyepiece clamp (icluded): 2" eyepiece clamp with hardened bronze clamp ring (length of clamp 12.5mm)

- Auxiliary threads: M60x1 and M55x0.75 for attachment of dedicated field flatteners or focal reducers/correctors

- Minimal total height (as delivered – incl. 2" clamp): 63 mm

- Minimal total height (with optional S58 direct-thread adapters): 50 mm

- Total weight (incl. 2" clamp): 1000 g

- Basic hole spacing lengthwise to tube: 65 - 94.5 mm variablel

- Base hole spacing transverse to tube: 101 mm measured directly from hole to hole

  

In The Box:

- Focuser with VersaBase

- 2" Eyepiece clamp

- Radial sliding bolts

- Strip-shims for smaller tube diameters

- Screws

 

For further selection of telescopes, cameras and accessories, please visit us in our online shop at teleskop-express and  enter the product no.  BA2957230

    PAYMENT SHIPPING
    • Condition: Neuf
    • Numéro de pièce fabricant: BA2957230
    • Type: Focuseur
    • Marque: BAADER
    • EAN: 4250477980350

    PicClick Insights - Baader 2" Diamond Steeltrack Newtonian Focuseur, BA2957230 PicClick Exclusif

    •  Popularité - 0 personnes suivent la vente, 0.0 de nouvelles personnes suivent la vente par jour, 276 days for sale on eBay. 0 vendu, 3 disponibles.
    •  Meilleur Prix -
    •  Vendeur - 49.983+ articles vendu. 0% évaluations négative. Grand vendeur avec la très bonne rétroaction positive et plus de 50 cotes.

    Les Gens ont Aussi Aimé PicClick Exclusif