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Televue Imaging System Accessories

Introduction

Tele Vue Imaging System accessories are a line of interchangeable, matching products that facilitate astro-imaging with your telescope. Imaging System accessories were developed to meet the varied demands of astro imagers using our line of Imaging System ("is") APO refractor scopes: the NP-127is and NP-101is. The wide focuser openings of "is" scopes allows for critical illumination of imaging chips up to 50-mm diameter. An adapter allows reusability of virtually all of the Imaging System accessories on our 2" focuser scopes and those of other brands.

As you'll see in the accompanying table, the wide breadth of Imaging System accessories makes this a complete product line of optical components, focal path hardware, mount rings and focusing accessories.

Imaging System Accessory Table

The following table indicates recommended use of Imaging System accessories with the Tele Vue "is" scopes, other Tele Vue scopes, and other-brand scopes. Click the item code for more information and see the Imaging System manuals for specific usage information. See important footnotes at table bottom.

Item Code Description Tele Vue
NP-127is
Tele Vue
NP-101is
Tele Vue
Other
Other scopes
with 2inch focuser
  Focal Path: Optical Accessories
LCL-1069 Large Field Corrector, NP101/NP101is/NP127is
   
NPR-1073 0.8x Reducer for NP Scopes
NP101
NP127
 
RFL-4087 0.8x Reducer/Flattener for 102 Scopes    
TV102
*
AFT-1105 48-mm Filter Adapter for 2.4"
*
*
  Focal Path: System Conversion
RAD-1074 Imaging System Nosepiece for 2" Focuser    
A2A-1107 2.4" Adapter for 2" Accessories
*
*
  Focal Path: Camera Adapters
TRG-1072 Standard T-Ring Adapter for 2.4"
*
*
CWT-2070 Canon Wide T Adapter w/Bayonet for 2.4"
*
*
STL-1071 SBIG STL Camera Adapter for 2.4"
*
*
AD2-1110 Apogee U47-D2 Camera Adapter for 2.4"
*
*
  Focal Path: Extension
TLF-0040 0.040" (1mm) Long Accessory Tube for 2.4"
*
*
TLG-0080 0.080" (2mm) Long Accessory Tube for 2.4"
*
*
TLA-0250 0.25" (6.4mm) Long Accessory Tube for 2.4"
*
*
TLB-0375 0.375" (9.5mm) Long Accessory Tube for 2.4"
*
*
TLC-0500 0.50" (12.7mm) Long Accessory Tube for 2.4"
*
*
TLD-1000 1.0" (25.4mm) Long Accessory Tube for 2.4"
*
*
TLS-1121 Set of 2 (TLF+ TLG) Accessory Tubes for 2.4"
*
*
TLS-2245 Set of 6 Accessory Tubes for 2.4"
*
*
  Mount Rings
MRS-4011 Mt. Rng Set for 4” dia. Tube (inc. BPL-1098)  
NP101
TV102
 
MRS-5000 Mt. Rng Set for 5" dia. Tube (inc. BPL-1098)
 
NP127
 
  Focuser: Digital Indicator for "is" scopes
LMK-2404 10 Micron Indicator Kit for 2.4" focuser
   
LMF-2405 1 Micron Fine Indicator Kit for 2.4" focuser
   
  Focuser: Digital Indicator for non-"is" scopes
RMK-2002 10 Micron Indicator Kit for 2" focuser    
 
RMF-2003 1 Micron Indicator Kit for 2" focuser    
 
  Focuser: Fine Focus
FDF-2004 FocusmateDriver10:1
     
FDU-2003 FocusmateDriver 6:1, Universal  
 
RSC-2320 Indicator to computer RS232 cable 10 ft.
 
Item Code Description Tele Vue
NP-127is
Tele Vue
NP-101is
Tele Vue
Other
Other scopes
with 2inch focuser
Table Footnotes
*Scopes with 2" focusers will require the RAD-1074 accessory to accept 2.4" Imaging System accessories. Imaging System accessories used with 2" focusers may not provide the large field illumination found in the 2.4" focusers of "is" scopes. The "is" scopes include Focusmate installed on the focuser.

 

Imaging System Accessories Chart

Here are images and descriptions of the Imaging System accessories in the same order as the table above. Refer to table for telescope compatibility, other required parts, and notes, then read the summary description below. For more information, refer to informational links at bottom or call us.

Focal Path: Optical Accessories
Optical accessories in the Imaging System optimize the image for specific applications.
LCL-1069: Large Field Corrector, NP101/NP101is/NP127is   top
• The Large Field Corrector optimizes images at the edge of field when imaging through the Tele Vue-NP101, NP101is and NP127is telescopes. Recommended for cameras with diagonal sizes larger than APS format.
NPR-1073: 0.8x Reducer for NP Scopes   top
• A reducer has the optical property of decreasing the effective focal length of the telescope. Reduced focal length results in wider-field and faster imaging time on nebulae and galaxies. The 0.8x Reducer for NP Scopes reduces focal length to 80% of normal and is optimized for imaging with up to APS-size (27mm diagonal) cameras.
RFL-4087: 0.8x Reducer/Flattener for 102 Scopes   top
• Flatteners clean-up focus away from the center of an image. The 0.8x Reducer/Flattener for 102 Scopes reduces telescope focal length to 80% while flattening the field for up to 35mm frame formats. Although optimized for TV102 scopes, it also works with any non-flat-field refractors (such as doublets or triplets) from 800-1000mm focal length.
AFT-1105: 48-mm Filter Adapter for 2.4"   top
• Imaging System 48mm Filter Adapter allows use of 48mm filters in optical-train and adds 0.25” of spacing. Best if used closest to the chip to minimize any vignetting.
 
Focal Path: System Conversion
These conversion parts allow Imaging System accessories to attach to scopes with 2" focusers and connect 2" and SCT accessories to Imaging System parts.
RAD-1074: Imaging System Nosepiece for 2" Focuser   top
• This is a key component to the imaging system's versatility on non-"is" scopes. By placing the Imaging System Nosepiece for 2" Focuser in your standard 2" drawtube, you open up your telescope to accept the 2.4" Imaging System accessories and take advantage of the solid threaded connection.
A2A-1107: 2.4" Adapter for 2" Accessories   top
• 2.4" Adapter for 2" Accessories is another key component that expands the usability of your existing 2" accessories. The adapter allows any 2” accessory to connect to the Imaging System. This includes cameras and filter wheels with 2" nosepieces. This adapter includes dual thumb-screws and non-marring brass clamp ring.
 
Focal Path: Camera Adapters
Camera adapters connect to the back of all focal path accessories and provide a place to attach the camera.
TRG-1072: Standard T-Ring Adapter for 2.4"   top
• Standard T-Ring Adapter for 2.4" provides a standard T-ring thread to attach your camera too. Recommended for cameras with APS-size or smaller chips.
CWT-2070: Canon Wide T Adapter w/Bayonet for 2.4"   top
• Canon EOS cameras are popular with astro-imaging enthusiasts. But, the typical T-ring / telescope setup does not take advantage of the wide aperture of the Canon bayonet mount: significant vignetting is caused by the constriction of the T-ring opening. Canon Wide T Adapter with Bayonet for 2.4" connects to your EOS in place of the T-ring and provides 25% greater aperture to minimize vignetting.
STL-1071: SBIG STL Camera Adapter for 2.4"   top
• SBIG STL Camera Adapter for 2.4" threads directly onto the STL11000.
AD2-1110: Apogee U47-D2 Camera Adapter for 2.4"   top
• Apogee U47-D2 Camera Adapter for 2.4" fits the Apogee U47 camera or any Apogee model with D2 body housing.
 
Focal Path: Extension
Focuser extensions of various lengths are often used to create the necessary distance for proper spacing of field lenses to imager; the required distance will vary depending on camera specifications. All are black anodized aluminum with anti-reflection threads for maximum contrast.
TLF-0040: 0.040" (1mm) Long Accessory Tube for 2.4"   top
• 0.040" (1mm) Long Accessory Tube for 2.4" adds 0.040" (1mm) extension between Imaging System accessories.
TLG-0080: 0.080" (2mm) Long Accessory Tube for 2.4"   top
• 0.080" (2mm) Long Accessory Tube for 2.4" adds 0.080" (2mm) extension between Imaging System accessories.
TLA-0250: 0.25" (6.4mm) Long Accessory Tube for 2.4"   top
• 0.25" Length Accessory Tube for 2.4" adds 0.250" (6.4mm) extension between Imaging System accessories.
TLB-0375: 0.375" (9.5mm) Long Accessory Tube for 2.4"   top
• 0.375" Length Accessory Tube for 2.4" adds 0.375" (9.5mm) extension between Imaging System accessories.
TLC-0500: 0.50" (12.7mm) Long Accessory Tube for 2.4"   top
• 0.50" Length Accessory Tube for 2.4" adds 0.500" (12.7mm) extension between Imaging System accessories.
TLD-1000: 1.0" (25.4mm) Long Accessory Tube for 2.4"   top
• 1.0" Length Accessory Tube for 2.4" adds 1.000" (25.4mm) extension between Imaging System accessories.
TLS-1121: Set of 2 (TLF+ TLG) Accessory Tubes for 2.4"   top
• Set of 2 Accessory Tubes is a convenient set of the 1mm & 2mm spacers described above. This allows great versatility in achieving the necessary distance for proper spacing of field lenses to image plane.
TLS-2245: Set of 6 Accessory Tubes for 2.4"   top
• Set of 6 Accessory Tubes is a complete set of the tubes/spacers described above. This allows great versatility in achieving the necessary distance for proper spacing of field lenses to image plane.
 
Mount Rings
Mount Rings attach Tele Vue telescope to your mount. Our dual rings each have bat-handle locks, and two Tele Vue accessory slots for ring-mounted accessories such as Starbeam, Sol-Searcher, Piggy-Cam and others. The adjustable top plate is for spacing the ring set and adding additional accessories. Bottom of each ring is drilled for ¼"-20 hardware.
MRS-4011: Mt. Rng Set for 4” dia. Tube (inc. BPL-1098)   top
• Mount Ring Set for 4” Diameter Tube provides a rigid means of holding any 4" diameter telescope tube. The individual rings can be spaced any distance apart or from 5.5" to 6.5" apart with the accessory bar or bottom plate attached. This flexibility allows the Mount Ring Set to accommodate a variety of mounts. Each ring has two accessory channels with #10-32 tapped holes, and a #¼"-20 tapped hole on the top and bottom to accept the accessory bar, bottom plate, a stud or bolt as necessary. The accessory bar has a variety of holes to accept Tele Vue Starbeam and even a slot with which you can piggyback a smaller Tele Vue refractor. The included bottom plate (BPL-1098) is drilled to mate to a variety of mounts or mounting adapter plates - including the Tele Vue/Vixen Mount Adapter (AVT-1011) and Tele Vue Gibraltar-5 Head.
MRS-5000: Mt. Rng Set for 5" dia. Tube (inc. BPL-1098)   top
• Mount Ring Set for 5" Diameter provides a rigid means of holding any 5" diameter telescope tube. The individual rings can be spaced any distance apart or from 5.5" to 6.5" apart with the accessory bar or bottom plate attached. This flexibility allows the Mount Ring Set to accommodate a variety of mounts. Each ring has two accessory channels with #10-32 tapped holes, and a #¼"-20 tapped hole on the top and bottom to accept the accessory bar, bottom plate, a stud or bolt as necessary. The accessory bar has a variety of holes to accept Tele Vue Starbeam and even a slot with which you can piggyback a smaller Tele Vue refractor. The included bottom plate (BPL-1098) is drilled to mate to a variety of mounts or mounting adapter plates - including the Tele Vue/Vixen Mount Adapter (AVT-1011) and Tele Vue Gibraltar-5 Head.
 
Focuser: Digital Indicator for "is" scopes
Digital indicators are precision instruments for computing real-time focuser movement on Tele Vue telescopes. They are essential for returning your system to a pre-determined best-focus position or checking that it hasn’t changed. Kits exist for Tele Vue scopes with 2-inch focusers and 2.4-inch "is" scopes. All kits have indicator with LCD display, data port, 0.5" motion range and all mounting parts.

All indicators accept the optional Indicator to Computer RS232 cable connector for displaying readout on computer with free downloadable software.

LMK-2404: 10 Micron Indicator Kit for 2.4" focuser   top
• 10-micron Indicator Kit for 2.4" focuser reads down to 10-microns of focus travel.
LMF-2405: 1 Micron Fine Indicator Kit for 2.4" focuser   top
• 1-micron Indicator Kit for 2.4" focuser reads distance changes down to an astounding 1-micron.
 
Focuser: Digital Indicator for non-"is" scopes
These non-"is" kits have the same benefit as the kits for "is" scopes but fit our late-model scopes with 2" focusers (see table for compatibility).
RMK-2002: 10 Micron Indicator Kit for 2" focuser   top
• 10-micron Indicator Kit for 2" focuser indicates focus position down to 10-microns of focus travel.
RMF-2003: 1 Micron Indicator Kit for 2" focuser   top
• 1-micron Fine Indicator Kit for 2" focuser achieves the 1-micron focus position accuracy.
 
Focuser: Fine Focus
These accessories are a must for accurate image focusing.
FDF-2004: FocusmateDriver10:1   top
• Focusmate Driver, designed for scopes with black pinion bodies (click image left or see instructions). Works on the following scopes: larger scopes with the following serial #s and higher: TVNP-127is (#1175), TVNP-101is (#1227), & TVNP101 (#1982) ; TV-76 and TV-85 that came with Focusmate 10:1 standard. Permits vibration-free, variable-speed, electronic motor control of the 10:1 Focusmate Fine Focus Accessory through a hand controller or computer control (see More Information section). A tap on the button permits vibration-free focusing in steps as small as approximately 0.0005" or download TVFocusPlus. Switching between manual and motor focus is easily done with a unique quick disconnect that doesn't require tools.
FDU-2003: FocusmateDriver 6:1, Universal   top
• Focusmate Driver, permits vibration-free, variable-speed, electronic motor control of the 6:1 Focusmate Fine Focus Accessory with chrome shaft and barrel (click image left or see instructions) through a hand controller or computer control (see More Information section). A tap on the button permits vibration-free focusing in steps as small as approximately 0.0005" or download TVFocusPlus. Switching between manual and motor focus is easily done with a unique quick disconnect that doesn't require tools.
RSC-2320: Indicator to computer RS232 cable 10 ft.   top
• Indicator to computer RS232 cable 10 ft, allows readout from our Digital Indicator kits to appear on your (Win95 or greater) computer. Requires 9-pin RS232 port on computer or connect to a USB port through a serial to USB adapter available at computer stores. TVFocus software, downloadable from TeleVue.com, displays readout, can save several focus positions, and includes a night-vision mode.
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