Skip to content

Language

Country

Baader Morpheus 76° Eyepiece 17.5mm - 1.25"/2"

SKU BAA-2954217
Original price $383.00 - Original price $383.00
Original price
$383.00
$383.00 - $383.00
Current price $383.00
Price Match Policy!
  • 17.5mm Focal Length
  • 76° Apparent Field of View
  • 23mm Long Eye Relief
  • Dual 1.25" and 2" Barrels
  • 8-Lens Optical Design with ED & Lanthanum Glass
  • M43 Thread for Photo-Video Adaptation
1 in stock
FREE Shipping in CONUS
Visual Simulator
Visual SimulatorInstant FOV Preview

Preview your eyepiece's FOV

See exactly what the Baader Morpheus 76° Eyepiece 17.5mm - 1.25"/2" shows you, on real sky survey data.

Launch Visual Assistant
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty
  • Baader Morpheus 76° Eyepiece 17.5mm - 1.25"/2"

    The Baader Morpheus 76° Eyepiece 17.5mm delivers an immersive, flat-field view across its true 76° apparent field, supported by a generous 23mm of eye relief. It has 8 lenses in 5 groups, with one ED and two lanthanum elements, a 23.55mm field stop and a 55mm body. The 1.25" and 2" barrels are integrated into one eyepiece, and the back focus gain is 21mm with the 2" barrel compared with the 1.25" barrel.

    An 8-Lens, Flat-Field 76° Optical System

    The Morpheus 17.5mm is engineered to deliver a sharp, geometrically correct image across its entire 76° field of view. The optical design consists of 8 lenses arranged in 5 groups, including one ED and two lanthanum elements. Morpheus eyepieces give a sharp image right to the edge of the field.

    The angular magnification distortion is exceedingly low, so planets and lunar features keep their shapes as they cross the field, and the stated 76° is the true value calculated from field size and focal length.

    Phantom Coating® Group for Maximum Throughput

    The Phantom Group multi-coatings, pioneered in the Hyperion line, were further optimised for the Morpheus and index-matched to each of the different glasses, and the internal mechanics have been ray-traced and baffled against stray light and reflections.

    Dual 1.25"/2" Barrels with a 21mm Backfocus Advantage

    The Morpheus 17.5mm has a 24mm long 1.25" barrel and a 21mm long 2" barrel integrated into one eyepiece, so it fits 1.25" and 2" focusers and diagonals.

    The back focus gain is 21mm when the 2" barrel is used, compared with the 1.25" barrel. Baader's Slip-Protect Safety-Kerfs on the 1.25" and 2" barrels are numerous shallow kerfs that give additional grip and security against inadvertent drops from smooth-sided barrels, without the problems sometimes caused by traditional wide undercuts.

    23mm of Relief for Immersive Viewing

    Eye relief of the 17.5mm is 23mm, the longest of the series. Eyeglass wearers can take in the full field with the Morpheus series.

    Eye relief, the related large eye lens and ease of viewing are the factors behind the spacewalk feeling, and even at too large a viewing distance the object remains visible.

    A 55mm Body for Close Interpupillary Distances

    Baader designed the Morpheus series for binoviewing: a 55mm outer housing diameter throughout the series allows binoviewing from 55mm interpupillary distance, even for children, and the body has been made as small as possible for nose clearance.

    The net weight is 0.45 kg; the technical data gives 415g for the eyepiece and 77.5mm for the body above the reference plane. The winged eyecup has a foldable side shield, which provides comfort and exclusion of stray light for binoviewing with eyeglasses.

    The M43 Thread and Modular Imaging System

    Hidden beneath the eyecup is the M43 photo-video thread. The distortion of the Morpheus is even lower than in the Hyperion eyepieces, and the flat field design suits photographic projection.

    • Classical Eyepiece Projection: Using the optional M43/T-2 adapter (#2958080), virtually any DSLR or system camera can be used through T-2 camera rings, at the correct projection distance in front of the camera.
    • Afocal Projection: With the optional M43/SP54 adapter (#2954251), you can connect cameras with fixed lenses via a system of Hyperion DT-rings.
    • Included M43 Extension: Baader includes the M43 extension (#2954250, 7.5mm) with Morpheus eyepieces, to set the eyecup position, adapt cameras with an M43 thread, and serve as a clamping surface for smartphone holders.

    Safety-Kerfs, Luminescent Engraving, and Build

    The housing is hard aluminium alloy with industrial-quality UV-stabilised anodizing.

    • Photo-Luminescent Engraving: Baader's luminescent lettering glows in a soft green after the eyepiece has been in the light or briefly lit with a flashlight; the main letters shine for up to three minutes, so the focal length can be recognised in the dark.
    • Waffle-Pattern Grip: A wide waffle-patterned rubber grip ring provides handling security.

    Eyecups, Holster, and More

    Our box list names the eyepiece, the standard folding rubber eyecup, the winged eyecup and the holster. Baader's scope of supply for the series also lists a storage box, three dust caps, the M43 extension and a focal length indicator clip.

    • Two Eyecups Included: You receive both a standard, soft folding rubber eyecup for general use and a special winged eyecup. Both fit the M43 thread; the folding cup has an integral M43-threaded metal ring.
    • Cordura Eyepiece Holster: The holster protects the eyepiece and can be used as a belt pouch or attached to a tripod.
    • Focal Length Indicator Clip: Baader's stainless steel clip can be attached to the holster. By bending one of its small "fingers" up, you create a tactile indicator, allowing you to identify the eyepiece by feel in total darkness.
  • Why is the Morpheus 17.5mm suited to binoviewing?

    Baader designed the Morpheus series for binoviewing: a 55mm outer housing diameter throughout the series allows binoviewing from 55mm interpupillary distance, even for children, and the body has been made as small as possible for nose clearance. A winged eyecup is supplied for binoviewing with eyeglasses.

    How does the dual 1.25"/2" barrel on the Morpheus 17.5mm work?

    The 1.25" barrel (24mm) fits a 1.25" holder and the 2" barrel (21mm) a 2" holder. The back focus gain is 21mm when the 2" barrel is used, compared with the 1.25" barrel.

    Can I use the Morpheus 17.5mm eyepiece for astrophotography?

    Yes. The Morpheus 17.5mm is excellent for eyepiece projection photography. By unscrewing the rubber eyecup, you reveal a standard M43 thread. With the optional M43/T-2 adapter (#2958080), the Astro T-2 System and T-2 camera rings can be used for classical eyepiece projection; for afocal projection the M43/SP54 extension ring (#2954251) opens the Hyperion DT-ring system. A C-Mount adapter (#2958520) is also available for screwing matching cameras onto the eyepiece.

    Why does Baader call the 76° a true field?

    The design has exceedingly low angular magnification distortion, so the stated 76° is the true value calculated from the field size and focal length, and planets and lunar features keep their shapes as they cross the field.

    What are the "Safety-Kerfs" on the Morpheus 17.5mm barrel?

    Baader's Slip-Protect Safety-Kerfs on the 1.25" and 2" barrels are numerous shallow kerfs that give additional grip and security against inadvertent drops from smooth-sided barrels, without the problems sometimes caused by traditional wide undercuts.

    What magnification does the Morpheus 17.5mm give?

    Magnification is the telescope's focal length divided by 17.5mm; on a telescope of 1000mm focal length the 17.5mm gives about 57x. Exit pupil is the eyepiece focal length divided by the telescope's focal ratio.

    What is the focal length indicator clip?

    A stainless steel clip that can be attached, for example, to the eyepiece holster. Bending up one or more of its little fingers according to the focal length lets you identify each eyepiece by touch, without looking and without a flashlight.

    What do the luminescent markings on the Morpheus 17.5mm do?

    Baader's luminescent lettering glows in a soft green after the eyepiece has been in the light or briefly lit with a flashlight; the main letters shine for up to three minutes, so the focal length can be recognised in the dark.

    Is the Baader Morpheus 17.5mm parfocal with other Morpheus eyepieces?

    Not exactly. Baader's technical data gives a field stop displacement of +2.5mm relative to the reference plane for the 17.5mm ("only 17.5mm Morpheus: reference plane + 2.5mm"), against 0mm for the 4.5mm to 14mm, so expect a small focus change when switching to or from the 17.5mm.

    What do I need to connect a DSLR to the Morpheus 17.5mm eyepiece?

    For classical eyepiece projection with a DSLR you need:

    • Baader M43/T-2 Adapter (#2958080): This threads onto the eyepiece's M43 port.
    • A T-2 camera ring for your camera: This attaches to the adapter and mounts to the camera body in place of the lens.

    You may also want T-2 extension tubes to adjust the projection distance and magnification.

  • Focal Length 17.5mm
    Apparent Field of View 76°
    Eye Relief 23 mm
    Barrel Size 1.25" and 2" (integrated)
    Optical Design 8 lenses (includes 1 ED and 2 Lanthanum elements)
    Coatings Phantom Coating® Group
    Outer Diameter 55mm
    Photo/Video Thread M43
    Safety Feature Slip-Protect Safety-Kerfs
    Net weight (kg) 0.45
    Field Stop Diameter 23.55 mm
    Parfocal Eyepieces No
    Special Features Photo-luminescent engraving: lets you find the correct eyepiece at all times
    Optional Accessories Baader Utility Bag #2954201 for small accessories
    Speciality Eyepiece projection: classical
    Threaded for filters Yes
    Field Stop Displacement to reference plane + 2.5 mm
    Number of Groups 5
    Dustcaps 1¼" dustcap (31.8mm), 2" dustcap (46.5mm - fits over eyecup), 2" dustcap (49mm)
    Backfocus gain w. 2“ Barrel (mm) 21 mm
    Eyepiece Body above Reference Plane (mm) 77.5 mm
    Length of 1¼" barrel (mm) 24 mm
    Length of 2" barrel (mm) 21 mm
    Eyepiece Series Morpheus
    Inner Connection (lens sided) M28.5
    Outer Connection (lens sided) ø 1¼" (31.75 mm), ø 2" (50.8mm)
    • Baader Morpheus 17.5mm Eyepiece

      × 1

    • Standard Folding Rubber Eyecup

      × 1

    • Winged Rubber Eyecup for Binoviewing

      × 1

    • Eyepiece Holster / Belt Pouch

      × 1

  • Baader Planetarium Warranty