What kind of mount is needed for astrophotography with the Esprit EDX 100?

The Esprit EDX 100 has an optical tube weight of 16 pounds. For stable astrophotography, you should use a German equatorial mount with a payload capacity of at least 25-30 pounds. This ensures the mount can handle the telescope plus cameras, guide scopes, and other accessories without compromising tracking accuracy.

How does the Esprit EDX 100 perform on large targets like the North American Nebula (NGC 7000)?

With its 550mm focal length, the Esprit EDX 100 is perfectly suited for large emission nebulae. When paired with a full-frame camera and the optional field flattener, you can capture the entirety of vast targets like the North American Nebula (NGC 7000) or the Andromeda Galaxy (M31) in a single, sharp frame.

What does "Super-Apochromatic" mean for the Esprit EDX 100?

A "Super-Apochromatic" (APO) refractor uses a three-element (triplet) lens design with extra-low dispersion (ED) glass. This allows it to bring all colors of the visual spectrum to a single focal point. For an observer or astrophotographer, this means the Esprit EDX 100 produces images with extremely high contrast and no distracting purple or green halos around bright stars and planets.

Is the optional field flattener required for using the Esprit EDX 100?

For visual observation, the field flattener is not necessary; the views will be sharp and high-contrast. For astrophotography, especially with sensors larger than APS-C, the flattener is highly recommended. It corrects the natural field curvature of the optics to ensure stars are perfectly round across the entire image, from corner to corner.

How do I attach my camera to the Esprit EDX 100's 3.4" focuser?

The focuser drawtube terminates in an M74x1 female thread. The optional field flattener threads into this, providing standard M48 threads for camera attachment. The telescope also includes a camera adapter designed to work with the flattener to achieve the correct 63mm back focus.

Can I use 2" filters with the optional field flattener?

No, the specifications indicate that the dedicated field flattener for the Esprit EDX 100 does not accommodate standard 2" screw-in filters. You would typically place filters in a filter wheel or drawer on the camera side of the flattener.

Sky-Watcher Esprit 150 EDX Super APO Triplet f/7 Telescope

par Sky-Watcher

UGC SW-S11455

$4,795.00 - $4,795.00

$4,795.00

$4,795.00 - $4,795.00

$4,795.00

Égalisation de prix!

150mm Aperture Air-Spaced Triplet APO
1050mm Focal Length (f/7)
Ohara FPL-53 ED Glass Element
44mm Full-Frame Image Circle
3" CNC Dual-Speed 1:11 Focuser
15 kg (33.1 lb) Optical Tube Weight

En rupture temporaire

Alerte de retour en stock

Info disponibilité

Livraison GRATUITE aux USA

Quantité

Simulateur de cadrageAperçu instantané du champ

Visualisez le champ de votre caméra

Voyez comment vos cibles s'inscrivent avec Sky-Watcher Esprit 150 EDX Super APO Triplet f/7 Telescope, sur de vraies données de relevés du ciel.

Lancer l'assistant d'imagerie

Calculateur de vignettage

Votre train d’imagerie vignette-t-il ?

Vérifiez quelles tailles de filtres et d'adaptateurs dégagent le capteur avec Sky-Watcher Esprit 150 EDX Super APO Triplet f/7 Telescope, et la lumière perdue dans les coins.

Vérifier le vignettage

Description
FAQ
Specifications
In the Box
Downloads
Warranty

Sky-Watcher Esprit 150 EDX Super APO Triplet f/7 Telescope

The Sky-Watcher Esprit 150 EDX combines a 150mm air-spaced triplet objective and a 1050mm focal length into a formidable f/7 imaging instrument. Its optical system achieves a Dawes resolution of 0.77 arc seconds and gathers 459 times more light than the human eye, reaching a limiting stellar magnitude of 13.4. For astrophotographers, the Esprit 150 EDX delivers a fully illuminated 44mm image circle with its optional dedicated field flattener, while its 3" CNC-machined 1:11 dual-speed focuser has a locking lever to secure heavy imaging loads.

150mm f/7 Triplet APO with Ohara FPL-53 Glass

At the heart of the Esprit 150 EDX is a three-element, air-spaced objective lens featuring an Ohara FPL-53 ED glass element. This apochromatic design corrects false color extremely well, with zero color fringing even on bright objects, yielding exceptional contrast and sharpness. Fully multi-coated optics with metallic high-transmission lens coatings and a knife-edge baffled optical system maximize light throughput and suppress stray light.

The 150mm aperture resolves down to 0.77 arc seconds (Dawes), giving you the power to split tight double stars and discern fine detail in planetary cloud bands and lunar rilles. With a highest useful magnification of 354x, this telescope delivers uncompromising visual observations when conditions permit.

A 44mm Full-Frame Corrected Image Circle

Designed for the dedicated astrophotographer, the Esprit 150 EDX is engineered to illuminate full-frame sensors. When paired with the optional ESPRIT 150 field flattener, designed specifically for this telescope, it gives excellent field flatness and full illumination with extremely minimized color fringing across the entire 44mm imaging plane. The flattener is not compatible with other telescopes, even refractors with the same aperture and focal length.

The optional imaging train is precisely defined: the flattener requires 100mm of back focus from its last lens element to the sensor. A 48mm (2") filter, such as a light pollution filter, can be mounted in the M48 x 0.75 thread inside the DSLR extender tube.

3" Dual-Speed Focuser with >170mm of Back Focus

The Esprit 150 EDX is equipped with a 3" CNC-machined linear power focuser that provides smooth, rock-solid focusing with zero image shift. A 1:11 dual-speed mechanism allows coarse adjustment and fine-tuning for critical focus. The whole focuser body can be rotated when the knobs are not in a convenient position, the diagonal ring rotates independently, an indexed scale on the drawtube shows the focus position for each accessory, and a locking lever below the focuser secures heavy loads.

For visual observers, the system offers more than 170mm of back focus from the end of the focuser tube with the 2" adapter installed. The telescope is supplied without eyepiece, star diagonal and finderscope.

Included Hardware: D-Style Plate, Tube Rings, and Aluminum Case

This telescope arrives ready for a substantial mount. The package includes a pair of tube rings on a 3" D-style (Losmandy) dovetail bar, plus a carry handle for handling the 15 kg (33.1 lb) optical tube.

A retractable dew cap shields the objective from moisture and blocks stray light, improving contrast. For transport and storage, the Esprit 150 EDX comes in a padded, foam-lined aluminum hard case. With the dew shield fully retracted, an M158 x 1.5 thread at the front of the objective cell accepts accessories such as a front-mounted filter.
What kind of mount is required for the Sky-Watcher Esprit 150 EDX?

The optical tube weighs 15 kg (33.1 lb) and is 92 cm (36 in) long with the dew cap retracted, so it needs a sturdy equatorial mount. Choose one whose payload rating comfortably exceeds the tube plus your camera and accessories.

How do I attach a full-frame camera to the Esprit 150 and achieve a flat field?

For a flat, fully illuminated 44mm field, use the optional ESPRIT 150 field flattener (sold separately), designed only for this telescope. The distance from its last lens to the sensor must be exactly 100mm. Sky-Watcher DSLR rings with an enlarged 48mm T-ring for your camera give this spacing; for astronomy CCD/CMOS cameras, a custom coupling ring with a female M62 x 1 thread places the sensor 95mm from the flattener's lens mount edge.

Does the Esprit 150 EDX come with a finderscope or diagonal?

No. The Esprit 150 EDX is supplied as an optical tube assembly with its core mounting hardware (rings, dovetail) and case. A finderscope, star diagonal, and eyepieces are not included. This allows discerning astronomers to select high-end accessories that match the optical quality of the telescope.

Is the Esprit 150 EDX suitable for high-magnification planetary viewing of Jupiter?

Absolutely. The apochromatic triplet objective provides extremely high contrast with no distracting color fringing. With its 1050mm focal length, a quality high-power eyepiece can easily push the telescope towards its highest useful magnification of 354x, revealing fine details in Jupiter's cloud bands, the Great Red Spot, and transits of its moons.

What is the purpose of the M158 x 1.5 thread on the Esprit 150's front lens cell?

The M158 x 1.5 thread is at the front of the objective cell, under the retractable dew cap. When the dew shield is fully retracted, it can be used to attach accessories such as a front-mounted filter.

Manufacturer SKU	S11455
Optical Design	Apochromatic Air-Spaced Triplet Refractor
Aperture	150 mm (5.9 in)
Focal Length	1050 mm (41 in)
Focal Ratio	f/7
ED Glass	Ohara FPL-53 element
Optical Coatings	Fully Multi-Coated (Metallic High-Transmission)
Baffling	Knife-edge baffled system
Resolution (Dawes)	0.77 arc seconds
Resolution (Rayleigh)	0.93 arc seconds
Limiting Stellar Magnitude	13.4
Light Gathering Power	459x (vs. human eye)
Highest Useful Magnification	354x
Lowest Useful Magnification	21x
Image Circle	44 mm (1.7 in)
Focuser	3" CNC-machined, rotatable, dual-speed 1:11 linear power focuser
Visual Back Focus	>170 mm (6.7 in) from focuser tube with 2" adapter
Optical Tube Length	92 cm (36 in) with dew cap retracted
Optical Tube Weight	15 kg (33.1 lb)
Mounting	Tube rings with 3" D-style (Losmandy) dovetail bar
Focuser Output Thread	M74 x 1 Male
Front Lens-Cell Thread	M158 x 1.5
Optional Flattener Back Focus	100 mm from last lens / 95 mm from lens mount edge
Filter Compatibility	M48 x 0.75 (2" filters) in DSLR extender

- Esprit 150 EDX optical tube
  
  × 1
- Tube rings
  
  × 1 pair
- D-style (Losmandy) dovetail bar
  
  × 1
- Carry handle
  
  × 1
- Camera adapter
  
  × 1
- Aluminum foam-lined hard case
  
  × 1
- Download Manual
Sky-Watcher 2-Year Warranty

Sky-Watcher Esprit 150 EDX Super APO Triplet f/7 Telescope

Visualisez le champ de votre caméra

Votre train d’imagerie vignette-t-il ?