Astronomy Specialist
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SKYWATCHER ESPRIT 150ED PRO APO TRIPLET

$9,899.00AUD
SKU: SWESPRIT150

Sky-Watcher

Apochromatic triplet

14.7 kg

 

The Skywatcher Esprit 150ED 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 150ED 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 150ED 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

150 mm

Focal length

1040 mm

Focal ratio

f/7

Resolving power

0.77 arc second

Stellar limiting magnitude

12.7

Max. magnification

240 x

Light gathering power

294 times the human eye

Mount attachment

Losmandy-style dovetail

Focuser

3" linear power dual speed (11:1)

Tube weight

14.7 kg

Tube length

920 mm

Tube diameter

160 mm

Dew shield diameter

202 mm

Visual back focus

 180 mm

Flattener back focus

98 mm from M62 x 1 thread, 55 mm with spacer rings

Threads on tube rings

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

Distance between tube rings

310.5 mm centre to centre approx.

 

 
 Items included

 

 

  • Esprit 150ED 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
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