Focusing Masks

Showing 1 to 20 of 42 total
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  1. Farpoint - Carey Focus Mask - Meade SN-10 Schmidt-Newtonian Telescope

    $22.25
    SKU: FAR-FP437

    Wait Time is 3-5 Days

    Carey Focus Mask for Meade SN-10. Ten Inch Schmidt Newtonian Telescope.

  2. Farpoint - Bahtinov Focus Mask Fits 2.5" to 4.5" Diameter Telescopes

    $13.30
    SKU: FAR-FP400

    Wait Time is 3-5 Days

  3. Farpoint - Bahtinov Focus Mask for Celestron 8 " SCT

    $17.80
    SKU: FAR-FP410

    Wait Time is 3-5 Days

    Due to the precision edges and easy to read platform, the Farpoint Bahtinov masks are highly superior.

  4. Farpoint - Bahtinov Focus Mask for Meade 8" Schmidt-Cassegrain telescope

    $17.80
    SKU: FAR-FP411

    Wait Time is 3-5 Days

    Due to the precision edges and easy to read platform, the Farpoint Bahtinov masks are highly superior.

  5. Farpoint - Bahtinow Focus Mask for Meade 10" SC Telescope

    $22.25
    SKU: FAR-FP413

    Wait Time is 3-5 Days

    Farpoint Bahtinov Focus Mask for Meade 10" SCT." Schmidt-Cassegrain telescope.

  6. Kendrick - Kwik Focus fits tube ODs 289mm to 299mm

    $99.95
    SKU: KEN-2052

    Wait Time is 3-5 Days

    Kendrick manufactures two different types of Kwik Focus Mask. The rigid masks will not bend whereas the plastic film masks are rollable and extremely lightweight.

  7. Farpoint - Focus Mask, For ASA 10" Telescope

    $22.80
    SKU: FAR-FP397

    Wait Time is 3-5 Days

    Bahtinov focus mask for ASA 10" telescope.

  8. Farpoint - Bahtinov Focus Mask for Celestron 11 " SCT with Hyperstar

    $22.25
    SKU: FAR-FP412H

    Wait Time is 3-5 Days

    Farpoint Bahtinov focus mask for Celestron C11 Schmidt-Cassegrain telescope, with HyperStar.

  9. Farpoint - Bahtinov Focus Mask Meade 12" SCT LX850

    $29.99
    SKU: FAR-FP417

    Wait Time is 3-5 Days

    Farpoint Bahtinov Focus Mask for Meade 12" SCT LX850

  10. Farpoint - Carey Focus Mask - Meade 12" Schmidt-Cassegrain Telescope

    $26.70
    SKU: FAR-FP435

    Wait Time is 3-5 Days

    Carey focus mask for Meade 12" Schmidt-Cassegrain telescope.

  11. Farpoint - Carey Focus Mask - Meade 10" Schmidt-Cassegrain Telescope

    $24.95
    SKU: FAR-FP434

    Wait Time is 3-5 Days

    Farpoint Carey focus mask for Meade 10" Schmidt-Cassegrain telescope.

  12. Farpoint - Carey Focus Mask - Celestron C11 Schmidt-Cassegrain Telescope

    $22.25
    SKU: FAR-FP433

    Wait Time is 3-5 Days

    Farpoint Carey Focus masks provide high precision focusing by way of a distinct X pattern. This mask was designed to fit the Celestron 11" SC telescopes.
  13. Farpoint - Carey Focus Mask - Celestron C9.25 Schmidt-Cassegrain Telescope

    $18.65
    SKU: FAR-FP436

    Wait Time is 3-5 Days

    Farpoint Carey focus mask for Celestron C9.25 Schmidt-Cassegrain telescope.

  14. Farpoint - Carey Focus Mask - Celestron C8 Schmidt-Cassegrain Telescope

    $17.80
    SKU: FAR-FP431

    Wait Time is 3-5 Days

    This Farpoint Carey Focus mask is designed for the Celestron 8" SC telescopes. Carey focus masks provide high precision focusing with a distinct X pattern.
  15. AstroZap - 110mm-120mm Focusing Cap

    $35.00
    SKU: AZP-AZ-404

    Wait Time is 3-5 Days

    Unlike a simple Hartman or Bahtinov mask, the Astrozap focusing cap is a multi-purpose tool which allows for quick 'shutter-like' operation.

  16. Orion - PinPoint Telescope Focusing Mask 228mm

    $29.99
    SKU: ORI-40012

    In stock

    The Orion PinPoint Telescope Focusing masks help the user obtain focus by saving time. By focusing on a bright star with the near the object the observer wants to photograph, all the user has to do is make sure the intersecting 3-line pattern is displayed.

  17. Orion - PinPoint Telescope Focusing Mask 158mm

    $21.99
    SKU: ORI-40009

    Wait Time is 3-5 Days

    The Orion PinPoint Telescope Focusing masks help the user obtain focus by saving time. By focusing on a bright star with the near the object the observer wants to photograph, all the user has to do is make sure the intersecting 3-line pattern is displayed.

  18. Orion - PinPoint Telescope Focusing Mask 138mm

    $19.99
    SKU: ORI-40008

    Wait Time is 3-5 Days

    The Orion PinPoint Telescope Focusing masks help the user obtain focus by saving time. By focusing on a bright star with the near the object the observer wants to photograph, all the user has to do is make sure the intersecting 3-line pattern is displayed.

  19. Orion - PinPoint Telescope Focusing Mask 118mm

    $16.99
    SKU: ORI-40007

    Wait Time is 3-5 Days

    The Orion PinPoint Telescope Focusing masks help the user obtain focus by saving time. By focusing on a bright star with the near the object the observer wants to photograph, all the user has to do is make sure the intersecting 3-line pattern is displayed.

  20. Orion - PinPoint Telescope Focusing Mask 98mm

    $15.99
    SKU: ORI-40006

    Wait Time is 3-5 Days

    The Orion PinPoint Telescope Focusing masks help the user obtain focus by saving time. By focusing on a bright star with the near the object the observer wants to photograph, all the user has to do is make sure the intersecting 3-line pattern is displayed.

Showing 1 to 20 of 42 total
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Focusing masks are an inexpensive and easy to way to achieve perfect focus and are a must have accessory for astrophotographers. These simple yet effective masks attach to the primary end of your telescope and, with a specially designed grid, create a patternthat will help you adjust your focus. There are four types of focus mask patterns available on the market. Bahtinov masks are the most commonly found and widely used masks. The

Bahtinov masks are the most commonly found and widely used masks. With slits pointing in three different directions, the resulting crown pattern (three small dashes above and below the focus star) can tell you how much your focus is off and by what direction. 

Hartmann masks are cut either with circular or triangular holes.  This focus mask type is the only one that does not use diffraction and are best suited for gross focus adjustments as smaller discrepancies can be difficult to detect.  

Carey focus masks use slits in two angles, 12 degrees on the left and 10 degrees on the right.  The resulting pattern is a distinct X type pattern with two long dashes above and below the focus star. Very small adjustments are easily made with Carey masks. 

Perpendicular masks are the least common but create a unique cross pattern, with four sets of two dashes set at equal distances around the focus star.  Adjustments by eye with a perpendicular mask can be difficult but with analytical software, additional calculation and automated adjustment can create perfect focus.