Apochromatic refractors


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Astro-Physics 130 Starfire GTX OTA apochromatic refractor with rings and Losmandy dovetail plate

Astro-Physics 130 Starfire GTX OTA apochromatic refractor with rings (55RING2) and Losmandy dovetail plate (SBD12).

Waiting for the next production run! Contact us for quotation and orders.

9 999,00 €

-314,00 €

10 313,00 €

Pack description

Astro-Physics 130 Starfire GTX OTA apochromatic refractor with rings (55RING2) and Losmandy dovetail plate (SBD12).

Waiting for the next production run! Contact us for quotation and orders.

Pack content

Apochromatic OTA Astro-Physics Starfire GTX features 130mm diameter, 819mm focal lenght (F/6.3). Hybrid-designed triplet lens: air / oil spaced with all spherical surfaces. Machined aluminum tube assembly with dewcap fully retractable and 3.5 " I.D. focuser with FeatherTouch Micro 9:1 dual-speed reduction.


Color correctionLess than + - 0.006% focus variation from 706nm to 430nm (r to g wavelengths).
Clear aperture130mm (5.12")
Focal length819mm (32.25")
Theoretical Resolution0.87 arc seconds
CoatingsMulti-layer, broadband, overall transmission greater than 97% in peak visual wavelengths
Magnification range22x to 500x
Tube assemblyCream white, 5.5" diameter, machined aluminum tube, fully baffled, flat black interior, engraved retaining ring. Convertible for travel. Optional covers to protect the lens and tube when it is disassembled.
Focuser3.5 " I.D. Focuser with rotating collar with "captain's wheel", rack and pinion, FeatherTouch Micro 9:1 dual-speed reduction, 4.5" travel; 7.3" backfocus, 2.7", 2" and 1.25" adapters. Focuser drawtube features mm focusing scale.
Telescope length724 mm (28.5") with dewcap fully retracted; 864 mm (34.0") with dewcap fully extended
Diameter of dewcap155 mm (6.1") O.D. including paint thickness, retractable
Weight with dewcap18 lbs. (8.2 kg)
Carrying case

Wood case with grey vinyl covering and foam-lined interior.
Dimensions: approximately 31.5" x 9.5" x 10.25"
Weight: 14 lbs. (6.4 kg)

Photographic Field

Photographic field at prime-focus with 130 Prime Focus Field Flatteners (13035FF or 67PF562)Field size: 65 mm diameter, 4.2 degrees
Focal ratio: f/6.7
Focal length: 873 mm
Photographic field with QUAD Telecompressor Corrector (QUADTCC-AP130)Field size: 50 mm diameter, 4.6 degrees
Focal ratio: f/4.5 (.72x)
Focal length: 585 mm
Photographic field with 2x Barlow

Field size: 32 mm diameter, 1.2 degrees
Focal ratio: f/12 @90 mm backfocus

Out of stock, waiting for the next production run. It is not possible to place an order, however you can add your name to the waiting list.

Mounting rings attach to the cradle plate of the mount and hold your tube assembly firmly in place.
The tops of the rings are also flat which allows you to support your guidescope, camera or other accessories. The rings feature a hinged assembly with thumbscrew closure. They are felt-lined to prevent marring of your tube. Please order the size that corresponds to the outside diameter of your tube assembly.

55RING2- (new top-of-ring hole-pattern and taller base for increased clearance) 130 Starfire GTX and 130 Starfire EDT/EDF refractors or other telescope tubes of 5.5" diameter; weight: 2.80 lb. (1.3 kg.).
Note: New top-of-ring hole-pattern allows direct connection of dovetail plates (no riser block needed).

This 12" Dovetail Sliding Bar was designed with short instruments in mind. The middle portion of the plate is raised 0.5" above the front and back sections. As a result, the plate is long enough for optimal movement without causing interference with the dewcap or focuser.

Weight: 1.9 lb. (0.86 kg). The plate is ribbed on the opposite side to reduce weight.
Includes screw packet for various configurations.

Attach directly to the bottom of mounting rings or with a spacer bar

  • 130 mm f6.3 StarFire Gran Turismo, 105 mm Traveler, 130 mm f6 StarFire (original version) - attach directly to Astro-Physics rings. With the Traveler, a spacer bar is preferred to allow more finger room on the focuser, but is not required.
  • 130 mm f8 or f8.3 StarFires, 140 mm f7 StarFire, and 155 mm f7 StarFire or similar instruments - use with Astro-Physics Riser Blocks (SBDAPB) in the outer hole positions. This will space the rings approximately 10" apart. The LMAPBLOCKS rest completely on the sliding bar and do not extend off the side.
  • Instruments that have ¼-20 center holes in the mounting rings.
  • 90 mm f5 Stowaway must be mounted by using the 5.5" sliding bar (SB0550) (discontinued) as a spacer to allow additional clearance for the dewcap.
  • Attach your TeleVue or Takahashi clamshells directly to the SBD12 using M8 socket head screws.

Use with our 8.5" Dovetail Saddle Plate (DOVELM2), 16" Dovetail Saddle Plate version with 3-clamps (DOVELM162) or other similar saddle plates. The 12" Sliding Bar is too short to be used with our older style 16" plates, the DOVELM16, or DOVELM16S that have only 2 clamps.