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  • Baader Planetarium Baader Planetarium Fluorite Flat Field Converter - FFC
    $869.00
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  • Stellarvue Stellarvue Large Field Flattener with 48 mm Threads for f/7 Refractors & 3" Feather Touch Focusers - SFF3-3FT-48
    $269.00
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  • Stellarvue Stellarvue Large Field Flattener with 42mm Threads for f/7 Refractors with 2.5" Focusers - SFF3-25-42
    $269.00
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  • Stellarvue Stellarvue Large Field Flattener with 48 mm Threads for f/7 Refractors with 2.5" Focusers - SFF3-25-48
    $249.00
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  • Stellarvue Stellarvue Large Field Flattener with 42 mm Threads for f/7 Refractors with 3" Feather Touch Focusers - SFF3-3FT-42
    $269.00
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  • Stellarvue Stellarvue Photographic Field Flattener for f/6 Telescopes - SFF6
    $195.00
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  • Stellarvue Stellarvue Photographic Field Flattener For f/7 Telescopes & DSLR Cameras - SFF7-21
    $195.00
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  • Stellarvue Photographic Field Flattener for f/7 Telescopes with 2.5
    Stellarvue Stellarvue Photographic Field Flattener For f/7 Telescopes w/ 2.5" Focusers & DSLR Cameras - SFF7-25
    $229.00
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  • Stellarvue Photographic Field Flattener for f/7 Telescoeps with 3
    Stellarvue Stellarvue Photographic Field Flattener For f/7 Telescopes w/ 3" Feather Touch Focusers & DSLR Cameras - SFF7-3FT
    $239.00
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  • Tele Vue Tele Vue 2" to 1.25" Adapter for PTT-2002 Paracorr Tunable Top - PRA-2003
    $30.00
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  • Explore Scientific ED APO Field Flattener Lens
    Explore Scientific Explore Scientific 2" Field Flattener - FFEDAPO-00
    $159.99
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  • Meade Meade 3" Field Flattener for 130 mm and 115 mm APO Refractors - 07585
    $199.00
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  • iOptron 2-inch Field Flattener
    iOptron iOptron 2" Field Flattener for f/5 - f/7 Refractors - TFF
    $220.00
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  • Sky-Watcher Sky-Watcher 0.85X Reducer/Corrector for Pro 100ED Telescope - S20201
    $249.00
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  • Sky-Watcher Sky-Watcher 0.85X Reducer/Corrector for Pro 120ED Telescope - S20202
    $249.00
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  • Hotech 2
    HoTech Hotech 2" SCA Self-Centering Field Flattener - SCA-FFT58
    $245.00 $160.00
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  • Stellarvue Stellarvue SV102 2" Flattener 0.8X Reducer for 2.5" Focusers - SFFR102-25
    $199.00
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  • Stellarvue 2
    Stellarvue Stellarvue SV102 2" Flattener 0.8X Reducer for 3" FT Focusers - SFFR102-3FT
    $239.00
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  • Stellarvue 2
    Stellarvue Stellarvue SV115 2" Flattener 0.8X Reducer for 3" FT Focusers - SFFR115-3FT
    $239.00
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  • Stellarvue 2
    Stellarvue Stellarvue SV115 2" Flattener 0.8X Reducer for 2.5" Focusers - SFFR115-25
    $229.00
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  • Stellarvue 2
    Stellarvue Stellarvue SV115 2" Flattener 0.8X Reducer for 2" Focusers - SFFR115-2
    $195.00
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  • Orion Field Flattener for Short Refractors
    Orion Orion Field Flattener for Short Refractors - 08893
    $139.99
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  • Stellarvue 0.72 Focal Reducer & Field Flattener for SVA130T 3
    Stellarvue Stellarvue .72 Reducer/Flattener for SVA130T-3FT with 48 mm Camera Adapter - SFFR72-130-3FT-48
    $695.00
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  • William Optics 68II Field Flattener
    William Optics William Optics Flattener 68II - P-FLAT68II
    $588.00
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  • Stellarvue SV70T Focal Reducer and Field Flattener
    Stellarvue Stellarvue SV70T Focal Reducer and Field Flattener - SFFR-70APO
    $179.00
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  • Takahashi 1.6X Extender Q
    Takahashi Takahashi 1.6X Extender QE for FSQ-106EDX4 - TKA36595
    $570.00
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  • Stellarvue SFFR80A Field Flattener & Reducer
    Stellarvue Stellarvue 0.8X Reducer & Flattener for SV80A Access - SFFR80A
    $229.00
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  • Takahashi 35 Flattener - TKA31582
    Takahashi Takahashi 35 Flattener for TOA & TSA Refractors - TKA31582
    $530.00
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  • Takahashi 67 Flattener
    Takahashi Takahashi 67 Flattener for the TOA-130NFB Refractor - TKA31583S
    $1,010.00
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  • Takahashi 67 Flattener
    Takahashi Takahashi 67 Flattener for the TOA-150 Refractor - TKA32583S
    $1,010.00
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  • Meade Series 6000 2
    Meade Meade Series 6000 3-Element 2" 0.8x Field Flattener - 661000
    $249.00
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  • Meade Series 6000 0.8x 3-Element Focal Reducer & Field Flattener - 3
    Meade Meade 0.8x 3-Element Series 6000 Field Flattener - 3" - 661001
    $349.00
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  • Explore Scientific Explore Scientific 2" Field Flattener with Special Thin Nikon T-Mount - FFEDAPO-NI
    $199.99
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  • William Optics Field Flattener for ZenithStar 61 APO
    William Optics William Optics Flattener 61 for ZenithStar 61 APO - P-FLAT61
    $168.00
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  • Orion Orion 3" Field Flattener for EON 115/130 EDT Refractors - 8671
    $229.99
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  • Stellarvue Reducer & Field Flattener for SVR90T-25SV Refractor
    Stellarvue Stellarvue Reducer/Flattener for SVR90T with 2.5" Focuser - SFFR90-25
    $229.00
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  • Stellarvue 2.156
    Stellarvue Stellarvue Large Photographic Field Flattener for 3" Feather Touch Focuser - 2.156" - SFF3-3FT-2156
    $269.00
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  • Stellarvue Focal Reducer & Field Flattener for SVA130T with 3
    Stellarvue Stellarvue Reducer/Flattener for SVA130 with 3" Feather Touch Focuser - Camera Adapters Not Included - SFFR72-130-3FT
    $649.00
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  • Stellarvue Focal Reducer & Field Flattener for SVA130 with 3
    Stellarvue Stellarvue Reducer/Flattener for SVA130 with 3" Feather Touch Focuser and M42 Adapter - SFFR72-130-3FT-42
    $695.00
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  • Stellarvue 0.72x Focal Reducer & Field Flattener for SVA130T with 2.5
    Stellarvue Stellarvue Reducer/Flattener for SVA130 with 2.5" Focuser and M48 Adapter - SFFR72-130-25-48
    $695.00
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These quality field flatteners from High Point Scientific create wide, flat viewing fields for stargazing. When your scope is sharply focused, you may notice stars and other celestial objects at the edge of your field of view to appear blurry or unfocused. A field flattener corrects this problem. They reduce the normal field curvature inherent in most refractors. The result is an image that is sharply focused out to the very corners of your field of view. A field flattener is also must-have for observers interested in astrophotography. This way your images are sharp and clear without any distortions at the edges.


We offer a full line of field flatteners for you to choose from. We carry field flatteners from virtually all major brands, including Celestron, Stellarvue, Meade, William Optics, Orion as well as many others. Many can be used with either a CCD or DSLR camera with the correct t-ring installed. However, when using a field flattener with a CCD camera, you may need extension tubes or spacer rings to achieve the necessary backfocus. This is because the backfocus of CCD cameras depend on the model.


Not all field flatteners are created equal. Oftentimes, a field flattener also has focal reducer capabilities, so you can get wider shots out of your scope. Be sure to check each field flattener we carry to see if you can use it as a focal reducer as well. Field flatteners also come in many different sizes, sometimes designed for a specific telescope model. If you’re unsure what to get for your scope, the experts at High Point Scientific are standing by to help!

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