1. Manuals
  2. Brands
  3. Takahashi Manuals
  4. Telescope
  5. FOA-60Q
  6. Instruction manual

Takahashi FOA-60Q Instruction Manual

Fluorite ortho apochromat
Hide thumbs
Table of Contents

Advertisement

Quick Links

Instruction Manual
TAKAHASHI

Advertisement

Table of Contents
loading

Related Manuals for Takahashi FOA-60Q

Summary of Contents for Takahashi FOA-60Q

  • Page 1 Instruction Manual TAKAHASHI...
  • Page 2 Thank you very much for your purchase of the TAKAHASHI FOA- 60Q. The original FOA-60 is provided with the objective with almost no color aberration accomplished by exquisitely correcting a high order of the spherical aberration. The FOA-60Q has the extender 1.7XR built into the FOA-60.

  • Page 3: Warning & Caution

    Warning & Caution WARNING WHEN THE TELESCOPE IS DIRECTED TO DANGER THE SUN, ITS LIGHT AND HEAT ARE BOTH INTENSE AND DANGEROUS. NEVER TRY TO VIEW THE SUN. DOING SO WITHOUT P R O P E R E Q U I P M E N T M AY C A U S E PERMANENT BLINDNESS.

  • Page 4: Table Of Contents

    Table of Contents Warning & Caution ----------------------------------------- 3 Table of Contents ------------------------------------------ 4 Specifications ----------------------------------------------- 5 Tube Assembly Layout ----------------------------------- 6 Set Up Procedures ---------------------------------------- 7 Focusing ---------------------------------------------------- 10 Finder Adjustment --------------------------------------- 11 Observation ----------------------------------------------- 12 Accessories ----------------------------------------------- 13 What is Fluorite? ----------------------------------------- 19 Care &...

  • Page 5: Specifications

    With the Extender 1.7XR, the effective focal length of the FOA-60 is extended to 900mm (f/15.0). This combination will produce the ultimate optical performance of all Takahashi telescopes. Over the visible light transmission area and across full format cameras, its Strehl ratio will be over 99%.

  • Page 6: Tube Assembly Layout

    Tube Assembly Layout Dew Shield Cap Dew Shield Dew Shield Lock Screw Main Tube Extender 1.7XR 6x30 Finder Scope Focuser Housing Focusing Knob Finder Bracket Drawtube 50.8(2") AD Ring (FOA-60) 50.8(2”) Adapter (SKY-90) Drawtube Clamp 50.8(2”) Extension Tube L 50.8(2”) Sleeve Coupling S 31.7(1¼”) Eyepiece Adapter Eyepiece Adapter Cap...

  • Page 7: Set Up Procedures

    Cap Bolt the tube assembly. The tube holder can be used with all Takahashi mounts. If using this equipment for astro-imaging, the heavier duty the mount, the better. Tube Holder...
  • Page 8 ◆ Balancing ◆ Retractable Dew Shield Now that the telescope has been attached T h e d e w s h i e l d o f t h e F O A - 6 0 Q i s to the mount, it is necessary to balance retractable.
  • Page 9 Abbe 4mm - 32mm ▼Erfle Plastic Ring With 3-group 5-element optics, 60 degree apparent field of view, almost no flare and ◆ Takahashi Eyepiece ghost, available in: ・31.7mm (1¼”) barrel A wide variation of eyepieces are available Er-28mm from Takahashi.

  • Page 10: Focusing

    ◆ Focusing System the best focus, move the focuser inside and outside of what you think is the best focus. The FOA-60Q uses a rack-and-pinion This will confirm the critical procedure. focuser. This focuser enables the observer Begin with a low power eyepiece and then to focus rapidly.

  • Page 11: Finder Adjustment

    Finder Adjustment In the view field of a telescope, the image ◆ Finder Alignment Procedures is seen highly magnified so it is so difficult 1. Set up the telescope for visual use to get a desired object in the field of view. according to the system chart and attach Also when photographing an object with a a low power eyepiece.

  • Page 12: Observation

    ▼Eyepiece Projection Imaging general, the limit of the magnification will be 20X and lowest 1.4X, respective to the When the FOA-60Q is used to take images effective aperture (cm). In the case of FOA- of lunar craters or planets, the TCA-4...

  • Page 13: Accessories

    Accessories Takahashi offers a wide variation of system parts for the FOA-60Q, including: ◆ Diagonal Mirror 50.8 (2") ◆ Diagonal Prism 31.7(1¼”) MC When the Diagonal Mirror or the Diagonal Prism is used, the light path length will be longer; so to get focus, you must turn the focusing knob more.
  • Page 14 ◆ 31.7(1¼”) 2X Barlow Lens This can extend the focal length of the 31.7(1¼”) Eyepiece FOA-60Q by 2X in visual use, keeping the aberration to a minimum. Barrel size is 31.7mm (1¼”) and it can be used with the Diagonal Mirror 50.8 (2") by way of the Adapter (DM).
  • Page 15 So, rebalance it according magnified imaging, and can also simply to the instruction of the Takahashi adjust the magnifying rate, as you like, by m o u n t s . I f t h e D e c . c l a m p s a r e sliding the magnifying tube.
  • Page 16 ◆ Extender ED 1.5X ◆ Extender Q 1.6X (50.8/2") The focal length of the FOA-60Q is as The T-Mount DX-WR is required to attach a long as 900mm. In order to get high DSLR. Use the T-Mount optionally available, magnifications, eyepieces with shorter according to the camera model.
  • Page 17 ◆ Removing the Extender 1.7XR The Extender 1.7XR is 2-group 4-element 2. Next, remove the Extender 1.7XR from built into the FOA-60 in between the tube the focuser unit. Holding the Extender and the focuser unit. There is no need 1.7XR and the focuser unit, turn the to remove it for visual use, or magnified Extender 1.7XR counter-clockwise...
  • Page 18 ◆ Flattener 0.93X When the FOA-60Q turns into the FOA- eclipse. At the same time, it can be used 60, the Flattener 0.93X, 2-group 2-element, as a 500mm (f/8) telephoto lens suitable can be used. Keeping the center image for imaging birds and lands. To attach the sharp as in the FOA-60 and improving the Flattener, the 50.8mm(2") is used for quick...

  • Page 19: What Is Fluorite

    C. element can produce rich illumination from short wave to long wave. Different The fluorite lens of FOA-60Q is multi-coated from reflectors, there is no light loss by the to harden the lens surface to protect it secondary, FOA-60Q can produce brighter scratched and is placed at the rear.

  • Page 20: Care & Maintenance

    Care & Maintenance ▼Optical Axis T h e n u s i n g c o t t o n s w a b s s l i g h t l y Before shipment, the optical axis of your moistened with telescope lens cleaner, telescope has been precisely adjusted dab the surface, changing cotton swabs...

  • Page 21: System Charts

    System Charts ◆ Visual/Imaging System Chart ▼Standard Accessories 10. TKP28001 50.8 (2") AD Ring (FOA-60) 13. TKP00113 50.8 (2") Sleeve 14S. TKP00103 Coupling S 46. TKP00101 31.7 (1¼”) Eyepiece Adapter 68. TKA28595 Extender 1.7XR 69. TKP35110 50.8 (2") Adapter (SKY-90) 71L.
  • Page 22 ◆ Extender ED 1.5X System Chart ◆ Extender Q 1.6X (50.8/2") System Chart Remove the Extender 1.7XR ▼Standard Accessories ▼Optional Accessories 10. TKP28001 50.8 (2") AD Ring (FOA-60) 27. TKA00404 4-Turret Eyepiece Holder 13. TKP00113 50.8 (2") Sleeve 32. TKA01250 T-Mount DX-S (EOS) 14S.
  • Page 23 ◆ FOA-60 Visual/Imaging System Chart ▼Standard Accessories 10. TKP28001 50.8 (2") AD Ring (FOA-60) 13. TKP00113 50.8/2” Sleeve 14S. TKP00103 Coupling S 46. TKP00101 31.7(1¼”) Eyepiece Adapter 68. TKA28595 Extender 1.7XR 69. TKP35110 50.8 (2") Adapter (SKY-90) 71L. TKP31112 50.8 (2") Extension Tube L Remove ▼Optional Accessories 14.
  • Page 24 TAKAHASHI SEISAKUSHO Ltd. 41-7, Oharacho, Itabashiku, Tokyo 174-0061, JAPAN PHONE:+81-3-3966-9491 FAX:+81-3-3966-9524...

Table of Contents