Astronomy Specialist

SKYWATCHER ESPRIT 100ED PRO APO TRIPLET

$2,899.00 $3,799.00
SKU: SWESPRIT100

Sky-Watcher

Apochromatic triplet

6.15 kg


 

The Skywatcher Esprit 100ED PRO is an apochromatic triplet refractor that offers high performance for demanding astrophotographers. The objective lens features an element of extra-low dispersion glass (ED) that minimizes the chromatic aberration for the best colour correction. 

The 3" linear power focuser is solid and backlash-free, with zero image shift. It operates at two speeds due to the 11:1 reduction mechanism for extra fine focusing adjustment, which is paramount for astrophotography and high resolution observations. The knobs have been redesigned to allow smooth and accurate usage, even with gloves. The integrated rotator makes framing targets quick and easy.

The objective lens is fully multi coated with Skywatcher's proprietary new "Metallic High-Transmission Coating" (MHC) for an effective anti-reflection result that approaches a transmission of 99.5%. The aluminium tube has knife-edge baffles and is blackened to ensure high contrast and absorbing stray light.

The Esprit 100ED includes a two element field flattener, correcting the frame for field curvature and providing a 40mm imaging circle, making it suitable for large sensors.

 

 

The Esprit 100ED Pro includes a high quality 2" dielectric diagonal, right angled 9 x 50 finderscope, 1.0x field flattener, Canon EOS M48 T-ring, plus adapters for connecting common accessories and a heavy-duty hardcase.

 

Specifications

 

Optical design

Apochromatic ED triplet

Objective diameter

100 mm

Focal length

550 mm

Focal ratio

f/5.5

Resolving power

1.20 arc second

Stellar limiting magnitude

12

Max. magnification

200 x

Light gathering power

204 times the human eye

Mount attachment

Losmandy-style dovetail

Focuser

3" linear power dual speed (11:1)

Tube weight

6.15 kg

Tube length

465 mm

Tube diameter

131 mm

Dew shield diameter

150 mm

Visual back focus

185 mm

Flattener back focus

63 mm from M66 x 1 thread, 55 mm with 8 mm spacer ring

Threads on tube rings

1/4"-20, 80 mm between outermost threads, 51 mm between middle threads approx.

Distance between tube rings

85 mm centre to centre approx.

 

 
 Items included

 

 

  • Esprit 100ED with dual speed focuser
  • 2" dielectric star diagonal (90°)
  • Field flattener with M48 x 0.75 thread
  • 9 x 50 right angled finder scope
  • Canon EOS T-ring
  • Vixen-style dovetail bar
  • 2" to 1.25" eyepiece adapter
  • Foam-lined aluminium carrying case
    Downloads

     

     Instruction manual
    SKYWATCHER ESPRIT 100ED PRO APO TRIPLET.

    SKYWATCHER ESPRIT 100ED PRO APO TRIPLET

    $2,899.00 $3,799.00

    Optical design

    Apochromatic triplet

    Image circle

    Focal ratio

    f/5.5

    Aperture

    100 mm

    Focal length

    550 mm

    Optical thickness

    Threads

    Cooled

    Colour or Mono

    Pixel size

    Sensor dimensions

    Resolution

    Sensor diagonal

    Quantum efficiency

    Read noise

    Fullwell capacity

    Bit depth

    FPS

    Camera backfocus

    Filter size

    Filter size

    Bandpass (FWHM)

    Bandpass (FWHM)

    Glass thickness

    Mount type

    Payload capacity

    Latitude range

    Dovetail saddle

    Slew speed

    Encoders

    Periodic error correction

    Counterweight shaft

    Azimuth adjustment range

    Internal diameter

    Illuminated diameter

    Compatible telescope external diameter

    Weight

    6.15 kg

    Length

    Width

    Height

    View product