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Denkmeier Optical

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  1. Denkmeier - D21 Eyepiece Pair

    Denkmeier - D21 Eyepiece Pair

    Specifications: Available Focal Lengths: 21mm 1 ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: EPP-D21
    $549.00

  2. Denkmeier - Bino-Corrector for P.S.T.

    Denkmeier - Bino-Corrector for P.S.T.

    Our latest innovation is a relay system that allows the Coronado P.S.T." to be used with any Denk Binoviewer. See our Sun in H-a with two eyes ... Learn More
    Model#: PST-BC
    $179.00

  3. Denkmeier - #S1 Dielectric Power x Switch Star Diagonal - Regular

    Denkmeier - #S1 Dielectric Power x Switch Star Diagonal - Regular

    Diagonal #S1 - For SCTs Using Single EyepiecesDesigned specifically for single eyepiece use (non-binoviewer) in an SCT and allows focal reduction, normal and 2X magnifications instantly ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: S1-99REG
    $509.00

  4. Denkmeier - Denk II Binoviewer with Case

    Denkmeier - Denk II Binoviewer with Case

    Denkmeier Denk II Binoviewer with case.

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    (48 States)
    Model#: D2-AC-C
    $938.00

  5. Denkmeier - 1.25" Adapter for 1.25" Filters

    Denkmeier - 1.25" Adapter for 1.25" Filters

    Using 1.25" Filters: 1.25" Step-Down Adapters. These may be ordered singly. They can fit into both Left and Right 2" Carriers. Order one for each 1.25" Filter ... Learn More
    Model#: FSC-125
    $16.00

  6. Denkmeier - Denk II Binoviewer without Case

    Denkmeier - Denk II Binoviewer without Case

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    FREE SHIPPING
    (48 States)
    Model#: D2-AC
    $899.00

  7. Denkmeier #S2 Dielectric Power x Switch Star Diagonal Shorty

    Denkmeier - #S2 Dielectric Power x Switch Star Diagonal - Shorty

    Diagonal #S2 For SCTsAllows Binoviewers to be used in SCTs for instant normal, reduction and multiplication factors ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: S2-99STY
    $509.00

  8. Denkmeier - #R2 Silver Enhanced Power x Switch Star Diagonal - Regular

    Denkmeier - #R2 Silver Enhanced Power x Switch Star Diagonal - Regular

    The Denkmeier 2" Power x Switch Diagonal #R2 for Refractors#R2 provides tremendous versatility allowing a binoviewer to move through up to 6 different magnifications with a low 1.26X power factor to a high power of 3 ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: R2-97REG
    $599.00

  9. Denkmeier - Denk Hi Def UHC Nebula Filters 1.25 " format
  10. Denkmeier - D14 Single Eyepiece

    Denkmeier - D14 Single Eyepiece

    Specifications: Available Focal Lengths: 14mm 1 ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: EPS-D14
    $329.00

  11. Denkmeier - Denk II Super System without Case

    Denkmeier - Denk II Super System without Case

    Denkmeier Denk II Super System Binoviewers have superb optical quality for Planetary, Lunar, Solar and Deepsky use. ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: D2-SS
    $1,295.00

  12. Denkmeier - 2 " Star*Sweeper for SCTs (Reducer)

    Denkmeier - 2 " Star*Sweeper for SCTs (Reducer)

    This is the original Patent Pending Denkmeier SCT Richfield Star*Sweeper that changed the way that binoviewers are used on SCT telescopes and many Maksutovs as well. These reducers cannot be used with Newtonians or Refractors because back focus is limited ... Learn More
    Model#: STSW-2
    $149.00

  13. Denkmeier 99% Filter Switch Star Diagonal

    Denkmeier - 99% Filter Switch Star Diagonal

    The Denkmeier Filter Switch is an innovative accessory for both astronomy and photography that allows the user's 2" and 1.25” filters to be moved in and out of the light path while offering full protection from dew and dust.

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    FREE SHIPPING
    (48 States)
    Model#: FSD-99
    $419.00

  14. Denkmeier - Optical Adapter for Lunt 2" Diagonal

    Denkmeier - Optical Adapter for Lunt 2" Diagonal

    For the better part of a full Solar Cycle, we at Denkmeier Optical, Inc. have been coming up with innovative solutions that allow H-a Systems to reach focus with our Denk Binoviewers ... Learn More
    Model#: OA-LUNT
    $199.00

  15. Denkmeier - #S2 Silver Enhanced Power x Switch Star Diagonal - Shorty

    Denkmeier - #S2 Silver Enhanced Power x Switch Star Diagonal - Shorty

    Diagonal #S2 For SCTsAllows Binoviewers to be used in SCTs for instant normal, reduction and multiplication factors ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: S2-97STY
    $389.00

  16. Denkmeier #R1 Dielectric Power x Switch Star Diagonal - Regular

    Denkmeier - #R1 Dielectric Power x Switch Star Diagonal - Regular

    Diagonal #R1 For RefractorsAllows any Denkmeier Binoviewer to be loaded into the eyepiece receptacle for 3 magnifications with a single pair of eyepieces ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: R1-99REG
    $619.00

  17. Denkmeier - Denk Hi Def UHC Nebula Filters 2 " format
  18. Denkmeier - D21 Eyepiece

    Denkmeier - D21 Eyepiece

    Specifications: Available Focal Lengths: 21mm 1 ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: EPS-D21
    $289.00

  19. Denkmeier #150 Cell 1.25 " for Coronado BF Diagonal (CORONADO DIAGONAL SOLD SEPARATELY!!!!)

    Denkmeier - #150 Cell 1.25 " for Coronado BF Diagonal

    The #150 1.25" Cell For Coronado BF DiagonalsThis optical cell will allow a Denkmeier Binoviewer to reach focus in a refractor equipped with the Solarmax 40, 60 or 90mm filter systems

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    Model#: 150-Cell
    $119.00

  20. S1-99STY

    Denkmeier - #S1 Dielectric Power x Switch Star Diagonal - Shorty

    Diagonal #S1 - For SCTs Using Single EyepiecesDesigned specifically for single eyepiece use (non-binoviewer) in an SCT and allows focal reduction, normal and 2X magnifications instantly ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: S1-99STY
    $509.00

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Denkmeier Optical, Inc. is a company co-owned by Russ Lederman and Spectrum Thin Films in Hauppauge NY. Russ Lederman is Inventor of The Power x Switch and Power Switch Star Diagonals. Let Denkmeier Optical be your source for the finest Binoviewers, Eyepieces, and Star Diagonals available anywhere. Whether your telescope is an SCT, Newtonian Reflector, Refractor, Maksutov Cassegrain, Dobsonian, Classical Cassegrain, RCX or other RC telescope brand, we have a binocular viewer for you! See our FAQ section for answers to common questions.


You may now see copies  of our products with similar sounding names elsewhere, but do not be tricked or misled : This is The Only Home Of Denkmeiwer Optical. Each and every Denk undergoes personal hands-on quality control procedures by Denk's owners throughout the production process in a state for the art facility here in the USA.