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  1. Astrodon Photometric UVBRIc 50mm Unmounted Rc Edge Blackened Filter

    Astrodon - Photometric UVBRIc - Johnson-Cousins 50mm Unmounted Rc Edge Blackened Filter

    Astrodon Photometrics - UVBRI filters have been the standard for photometric measurements for decades.

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    (48 States)
    Model#: Rc*-50R
    $400.00

  2. Takahashi - 2" Mirror Diagonal with 1.25" Adapter

    Takahashi - 2" Mirror Diagonal with 1.25" Adapter

    Don't rob yourself of the extra light by using a 1.25" diagonal... Get the full effect by going to a full 2" with the Takahashi TDM0200 Mirror Diagonal.

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    (48 States)
    Model#: TDM0200
    $499.95

  3. Astro-Physics - Soft-sided Carrying Case for 6" Eagle Pier - 52" Long

    Astro-Physics - Soft-sided Carrying Case for 6" Eagle Pier - 52" Long

    Please Note: We cannot ship Astro-Physics products to customers in Germany, Switzerland, Austria, France and Japan.

    Those observers who want to grab-and-go quickly will prefer the longer case. This case is well sized to carry the Eagle Pier in its fully extended configuration and with the 8" Extension (EAGLE6E8) attached.

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    (48 States)
    Model#: C0052
    $354.00

  4. Lunt Solar Systems 2" Starlight Feather Touch Focuser with 1.5" travel

    Lunt Solar Systems - 2" Starlight Feather Touch Focuser with 1.5" travel

    The Feather Touch Focuser has been redesigned! Built on the original and ... Learn More
    Model#: SLF1.5
    $422.00

  5. Astrodon Gen2 I-Series LRGB (set of 4) Mounted in 31mm Inserts

    Astrodon - Gen2 I-Series LRGB (set of 4) Mounted in 31mm Inserts

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    (48 States)
    Model#: LRGB2-I31R
    $525.00

  6. Optical density (actually measured)

    IDAS - Hutech - 52mm UV Filter

    The IDAS UV filters helps create contrast and increase visibility of atmospheric clouds on Mars and Venus. It minimizes transmission leak in VIS and IR and results in very high contrasts views. These filters can also be used for applications outside astronomy like biological purposes.

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    (48 States)
    Model#: UV372-80-52
    $309.00

  7. Astro-Physics 30 Ib. Stainless Steel Counterweight for 2.5" Shaft

    Astro-Physics - 30 Ib. Stainless Steel Counterweight for 2.5" Shaft

    Please Note: We cannot ship Astro-Physics products to customers in Germany, Switzerland, Austria, France and Japan.

    This stainless steel counterweight was designed to fit onto the 2.5" diameter shaft of the 3600GTO. It features a spring-loaded, recessed lock knob and measures 7.9" in diameter by 2.5" thick.

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    (48 States)
    Model#: 30SCWT
    $365.00

  8. Astrodon - Photometric Sloan - 50mm Unmounted Gen2 z' Edge Blackened Square Filter

    Astrodon - Photometric Sloan - 50mm Unmounted Gen2 z' Edge Blackened Square Filter

    NEW!  Astrodon introduces Generation 2 Sloan filters based upon ongoing input from research organizations.  The changes include

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    (48 States)
    Model#: z'2-50S
    $440.00

  9. AstroSystems - 4.5 " Secondary Mirror

    AstroSystems - 4.5 " Secondary Mirror

    AstroSystems Secondary MirrorsPrecision Secondary Mirrors - the best!Our superior quality elliptical secondary mirrors are made of precision annealed Pyrex blanks, ground to the exact minor axis dimension ... Learn More
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    (48 States)
    Model#: AS_SM_4.50
    $565.00

  10. Starlight Instruments - Micro Touch Focusing System - Stepper Motor for 2.5 ", 3.0 " Feather Touch' and 2.7 " Astro-Physics Focusers

    Starlight Instruments - Micro Touch Focusing System - Stepper Motor for 2.5 ", 3.0 " Feather Touch' and 2.7 " Astro-Physics Focusers

    Old Model Number [MTAF-SML27]Extra stepper motor unit for the MicroTouch Autotelescope focuser (works with both WIRED and WIRELESS). Use this to easily transfer the MicroTouch between multiple telescopes.This motor unit fits the 2.5", 3 ... Learn More
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    (48 States)
    Model#: MSM30
    $319.00

  11. Pentax SMC ZOOM Eyepiece 20x-60x

    Pentax - SMC ZOOM Eyepiece 20x-60x

    This Zoom eyepiece is especially suited for use with astronomical telescopes ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: PN-70509
    $379.95

  12. Hotech - Advanced CT  for 1.25 " Focuser Laser Collimator

    Hotech - Advanced CT for 1.25 " Focuser Laser Collimator

    Collimate your Cassegrain Telescope without using a star Indoor or outdoor - day or night ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: ACT-M125
    $455.00

  13. Takahashi 4-Turret Eyepiece Holder

    Takahashi - 4-Turret Eyepiece Holder

    Takahashi has just introduced a high quality 90° 4-turret eyepiece holder. The 90° design allows the observer to conveniently view through any if the selected eyepiece in the turret.

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    (48 States)
    Model#: TKA00404
    $595.00

  14. Astrodon - Photometric Sloan - 50mm square Unmounted z Filter

    Astrodon - Photometric Sloan - 50mm square Unmounted z Filter

    Astrodon Photometrics - Sloan FiltersThe Sloan Digital Sky Survey (SDSS) filters were  designed by Fukugita et al. (Ast. J., 411/4, April 1996, p ... Learn More
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    (48 States)
    Model#: Z-50S
    $390.00

  15. AstroTrac - Tp3065 Pier

    AstroTrac - Tp3065 Pier

    The elegant TP3065 is the ultimate in portable piers created specifically for astrophotographers on the move.Rigid yet lightweight, the TP3065 provides the ideal platform for your AstroTrac tracking mount and wedge ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: tp3065
    $479.00

  16. Celestron - Serial Board for NexStar GPS Series Telescopes

    Celestron - Serial Board for NexStar GPS Series Telescopes

    Serial board for NexStar GPS Series Telescopes.

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    (48 States)
    Model#: NXW493
    $335.00

  17. ScopeGuard - Telescope Transport Case for the Astro-Physics AP Mach1GTO

    ScopeGuard - Telescope Transport Case for the Astro-Physics AP Mach1GTO

    All ScopeGuard Telescope Transport Cases have the following standard features

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    Model#: SG AP Mach
    $399.00

  18. RoboFocus - RoboFocus

    RoboFocus - RoboFocus

    Complete RoboFocus system, ready to install and operate on your specific telescope/focuser ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: RF3
    $495.00

  19. Lunt - Blocking Filter B600 in 2" Diagonal with T2 Connection

    Lunt - Blocking Filter B600 in 2" Diagonal with T2 Connection

    This 2.00" Lunt Solar Systems B600 Blocking Filter is housed in a star diagonal with a T2 connection.For best performance, be sure to pair your Lunt Solar Systems h-Alpha filter with the proper sized Lunt blocking filter ... Learn More
    Model#: B600d2
    $348.00

  20. Coronado - Adapter Plate for Meade 8 " SCT offset

    Coronado - Adapter Plate for Meade 8 " SCT offset

    Coronado Solar Filter Adapter PlateMost telescopes will require a Coronado built adaptor plate in order to secure the MaxScope series filter to the objective cell. These plates are built by Coronado for most telescope up to 16" in diameter ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: AP172
    $402.00

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