|
>
2"
Newtonian Low-Profile Steeltrack
>
2" SC
Steeltrack (for Schmidt Cassegrains)
>
2"
Refractor Steeltrack
>
3"
Refractor Steeltrack
>
3"
RT Steeltrack Accessories
Baader Steeltrack®
Premium Focusers
In recent years the Crayford
style of ball-bearing guided focuser has become popular due to its
smooth motions, absence of pinion backlash, and rigid drawtube support.
Baader's new Steeltrack® Premium
Focusers incorporate a number of innovative features that further
enhance the smoothness and robustness of the Crayford focuser.
Steetrack focusers are available to fit practically every telescope, from
Refractors (2" and 3" sizes) to Newtonians, and SCTs.
All Baader Steeltrack®
focusers incorporate the following features:
-
The precision ball bearings ride
on hardened and polished stainless steel ways that are inset into the
thick-walled aluminum drawtube. The large diameter pinion drive
also rides on a precision laser cut
hardened and polished steel way. This important feature delivers an
ultra-smooth motion that is superior to to the rougher motions of an
aluminum bearing system, and guarantees that the buttery-smooth motions will
remain that way over the life of the focuser. Crayford focusers that
rely on machined and anodized aluminum bearing ways can become worn and pitted
with use, which results in loss of smoothness and accuracy.
-
The extra-large focusing knobs
and Precision 1:10 reduction gearing permits ultra-fine motion control
without backlash.
-
Precision Pinion Drive and
Bearing Assembly delivers an exceedingly smooth slipless motion and avoids
the drawtube flexure present in other crayford focusers.
-
Each Steeltrack incorporates a
drawtube locking screw that supports even extremely heavy cameras and
eyepieces without flexure or slippage. The knurled lock screw
incorporates a swivelling anti-marring brass insert that allows firm clamping of
the drawtube without marring or damage to the focusing mechanism.
-
Future-proof. Steeltrack
focusers incorporate mounting features to permit addition of a motorized
focussing accessory (availability 2010)
-
Internal drawtube surfaces are
knife edge baffled to eliminate stray light reflections.
-
Bronze compression rings permit
secure clamping of eyepieces and accessories without marring.
-
Baader Precision and Quality. All parts are precisely machined
and their high surface quality make the Baader Steeltrack an attractive
compliment to any telescope.
-
Graduated markings on the
drawtube aid in measuring and repeating focus positions.
-
A complete set of adapters and
extensions permit adaptation onto practically any telescope.
♦
2" Newtonian Low-Profile Steeltrack®
♦
2" Newtonian Steeltrack
(shown with
optional Pushfix 2"/1¼”
low-profile Reducer) |
2" Newtonian Steeltrack
(as
supplied, with universal base)
|
|
Upgrade practically any
Newtonian, small or large, with all of the smoothness, precision, and
features of Baader Planetarium's 2" Newtonian Low-Profile
Steeltrack Focuser.
-
Low Profile. Overall
height of only 50mm
-
Fully Baffled and blackened
drawtube kills off-axis stray light. Tube hole size of 2.4"
Diameter required for drawtube clearance.
-
Focuser travel of 30mm.
-
Universal Base, fits tubes 8"
Dia and larger. Designed especially to fit Synta/Celestron
Reflectors. 54 x 90mm hole pattern (7mm diameter holes drilled at
a 30degree angle from vertical to work with curved tubes ).
-
Optional low-profile (1mm)
2"/1¼”
Pushfix Reducer.
-
Weighs 29oz (811g).
- 2" Newtonian Steeltrack Crayford Focuser (#FOC-NT)
PRICING |
ORDERING
♦
2"/1¼ Pushfix
Low-Profile Reducer
♦
|
|
 |
 |
|
Baader's Pushfix Reducer is
the perfect low-profile 2"/1¼
reducer for the
Newtonian and SCT Steeltrack focusers. The 'pushfix' reducer
incorporates unique features not found in any other reducer.
-
When mated to
the Newtonian and SCT Steeltrack Focusers, the Pushfix uses up only 1mm
of height, saving precious back-focus.
-
Captive Bronze
compression ring protects eyepieces from damage.
-
Threaded to
accept 2" filters.
-
Unique 3-Way
clamping:
-
Standard
Knurled thumbscrew. Nests inside the mating Steeltrack focuser recess to
preserve the ultra-low 1mm profile.
-
Semi-Permanent
attachment to eyepieces. Recessed setscrews can be tightened onto
the compression ring to semi-permanently 'fix' the reducer to a 1.25"
eyepiece, converting it to a 2" eyepiece.
-
The three
recessed round-head nylon set screws can be adjusted to lightly bear on
1.25" eyepiece barrels, enabling them to be simply 'pushed' into the
reducer and held by friction.
-
2"/1¼ Pushfix Low-Profile
Reducer (#T2-15A)
PRICING |
ORDERING |
♦
2" SC Steeltrack®
♦
|
|
 |
 |
 |
|
The Baader 2" SC Steeltrack Focuser
enables Schmidt Cassegrains to deliver ultra-smooth focusing with zero
image shift.
-
Fits Schmidt Cassegrains from 6" to
14". The included adapters fit both the SCT 2" thread used on 8"
and smaller scopes, and the 3.3" thread used on larger SCTs.
-
30mm Focus travel
-
Fully Baffled and blackened
drawtube kills off-axis stray light.
-
Optional low-profile (1mm)
2"/1¼”
Pushfix Reducer.
-
Overall Length of 93mm, weighs 33oz
(930g)
- 2" SC Steeltrack Crayford Focuser (#FOC-SC)
PRICING |
ORDERING |
♦
2" Refractor Steeltrack®
♦
 |
 |
 |
|
Baader
Planetarium's 2" Refractor Steeltrack Focuser gives refractors a
full 3" (76mm) of velvety smooth focusing travel. Easily adaptable to
popular refractors.
-
Overall length fully retracted 80mm
(backfocus length).
-
Drawtube is fully internally baffled
and blackened to eliminate off-axis stray light.
-
Includes 2"/1¼”
Reducer, with internal Bronze compression ring. Optical Path Length
10mm.
-
72mm dovetail receiver permits
360degree rotation of focuser with single-screw locking.
-
Optional RT Adapterset permits easy
attachment to Celestron/Skywatcher/Zeiss refractors, and is easily
adaptable to other refractors.
- 2" RT Steeltrack Crayford Focuser (#FOC-RT2)
weight 1060g (2.33lb)
PRICING |
ORDERING
♦
RT Steeltrack®
Adapterset
♦ |
|
 |
 |
 |
The RT Steeltrack Adapterset consists of 4 parts:
- Large Lock-Ring (M90 Internal Thread). 3
chrome grip 'spokes' permit easy rotation and locking of the focuser.
- 72mm Dovetail Ring for attachement to focuser.
Also has M68 External Thread, fits directly onto Zeiss.
- Expanding Ring, M80 External Thread, fits directly
onto Zeiss.
- Base Ring, Slip-fit OD 96mm. Slips inside of
tubes with approximate ID of 96mm.
When all 4 parts are combined, the RT Adapterset slips
into 96mm ID tubes (used on Celestron/Skywatcher telescopes, or any
other similar sized tube). The adapter is then attached using (3)
M3 screws around the periphery.
- Steeltrack RT Adapterset (#FOC-RTAD)
PRICING |
ORDERING |
♦
3" Refractor Steeltrack®
♦
|
 |
 |
 |
 |
|
Baader
Planetarium's Giant 3" Refractor Steeltrack Focuser gives large refractor
owners the same ultra-smooth focusing and robustness as their 2"
focusers, but in an oversized 3" format. There is no smoother and
finer made large format focuser on the planet.
-
Overall length fully retracted 88mm
(backfocus length), measured to face of 2" Eyepiece Holder.
-
Focuser Travel of 115mm.
-
Drawtube ID of 3" (76mm), OD 3.4"
(87mm). Fully internally baffled and blackened to eliminate
off-axis stray light. Threaded Internal M82.
-
Includes Baader M82/M68 Reducer Ring
for attachment of 2" Eyepiece Holder and M68 Extension Tubes.
-
Includes Deluxe 2" Eyepiece
Holder, with internal Bronze compression ring and dual lock screws.
Optical Path Length 12mm. Also has M68 external thread for
attachment of Baader M68 accessories.
-
4" dovetail receiver permits
360degree rotation of focuser with single-screw locking.
-
Optional adapters and spacers permit easy
attachment to large refractors.
-
Focuser Weight: 3lb 13oz (1740gm)
- 3" RT Steeltrack Crayford Focuser (#FOC-RT3)
PRICING |
ORDERING |
|
3" RT Steeltrack shown with Optional Adapters
and Baader Quick Release Dovetail Finder Bracket |
|
|
♦
3" Refractor Steeltrack®
Accessories ♦
|
♦
Adapter M100
♦ |
 |
|
|
The Adapter M100 enables
attachment of the 3" RT Steeltrack Focuser into telescope backplates with
an opening of 100mm
-
4"Dovetail on one side for
attachment of 3" RT Steeltrack Focuser.
-
M100 external thread on other
side.
-
M100 Counternut for locking
onto telescope backplates.
-
Fully Baffled and blackened
internal surface kills off-axis stray light.
- MT100 Adapter (#FOC-AD100)
PRICING |
ORDERING
♦
Adapter M116
♦
|
|
 |
 |
|
The Adapter M116 enables
attachment of the 3" RT Steeltrack Focuser into telescope backplates
with an M116 thread.
-
4"Dovetail on one side for
attachment of 3" RT Steeltrack Focuser.
-
M116 internal thread on other
side.
-
48mm Overall Length
-
Baffled and blackened
internal surface kills off-axis stray light.
- MT116 Adapter (#FOC-AD116)
PRICING |
ORDERING
♦
RT Spacer
♦
|
|
 |
RT 3" Steeltrack Focuser
Shown with RT Spacer and
Baader Quick Release Dovetail Base |
|
The 3" RT Spacer allows
changing back-focus by providing quick connect/disconnect spacing of the
3" RT Steeltrack Focuser (39mm spacing length).
-
4"External Dovetail on one side for
attachment of 3" RT Steeltrack Focuser.
-
4"Internal Dovetail
Receiver on opposite side, with 3 lock screws.
-
39mm Spacing Length
-
Baffled and blackened
internal surface kills off-axis stray light.
- RT Spacer (#FOC-SPCR)
PRICING |
ORDERING
|
Last Update
12/31/09 |
