Skywatcher Apochromatic refractor AP 100/550 ESPRIT-100ED Professional OTA

Product description

Specifications

Customer reviews

Recommended accessories

Product description:

Top class refractors: Esprit series three lens element apochromats offer high-end quality telescopes to astrophotographers and discerning observers. The combination of an Ohara FPL-53 ED lens element with two other lens elements ensures that the objective lens delivers high contrast but no apparent chromatic aberration - even with very bright objects. Ohara is a German company from Hofheim in the Taunus range and is a world leader in the manufacture and development of optical glass. FPL series glasses were developed by Ohara specifically for applications in astronomy.

The advantages in a nutshell:

high-contrast optics with no colour fringing
high light gathering power, ideal for astrophotography (see field flattener accessory available)
multi-coated lenses and internal light baffles
rotatable focuser with 1.25" and 2" adapter and high carrying capacity
fine adjustment on focuser with 1:11 ratio for extremely accurate focusing

In addition to the OTA and dew shield the following are included in delivery:

2" star diagonal
9x50 finder scope with angled eyepiece
prism rail

And, additionally, a very high quality carrying case with interior padding.

It is not only important which telescope you buy, but also where you buy it.

We provide extra help:

We are a leading telescope dealer and know these instruments like the back of our hands.
We are always very happy to offer our assistance after your purchase, should you encounter any problems with your telescope’s setup or operation.
Our ‘Telescope Basics’ booklet - an 80-page beginner's guide for our telescopes – is provided free of charge with every telescope we sell.

Focuser

Transport case

Recommended accessories:

Before buying this product, make sure to check our accessory recommendations.

accessory details

Specifications:

Optics Optics X A telescope tube is referred to as an optic because it contains the components necessary to collect and concentrate light. Click to read more...
Type Type X There are basically two different types of telescope. A distinction is made between refractor (lens) and reflector (mirror) telescopes. Click to read more...	Refractor
Type of build Type of build X Describes the exact structure of the telescope thereby further subdividing the different types of telescope. Click to read more...	Apochromat
Aperture (mm) Aperture X The aperture indicates the diameter of the objective lens or the mirror. Click to read more...	100
Focal length (mm) Focal length X This is the distance between the objective lens or mirror and the focal point. Click to read more...	550
Aperture ratio (f/) Aperture ratio X Is the ratio of the aperture to the focal length of a telescope. Click to read more...	5,5
Resolving capacity Resolving capacity X The ability of the optic to discern the fine detail of objects that are close together. Click to read more...	1,15
Limit value (mag) Limit value X Describes the brightness of a star or point-shaped object, which can still just be distinguished by the telescope. The naked eye, for example, can make out stars with a magnitude of up to 6. Click to read more...	11,8
Light gathering capacity Light gathering capacity X Light-gathering capacity of the telescope compared to the eye. Click to read more...	200
Max. useful magnification Max. useful magnification X The telescope’s magnification should not exceed this factor, because otherwise the image will appear weak and dark. Click to read more...	200
Tube material	Aluminium
Tube construction	Full tube
Tube weight (kg) Tube weight X The weight of the tube is critical for the correct choice of mount. Click to read more...	6,3
Focuser Focuser X A focuser is used to hold an eyepiece. The image can be focussed using the focus wheels on the side. Click to read more...
Connection ( to eyepiece) Connection ( to eyepiece) X Focusers are available in 1.25" or 2" formats. Many 2" focusers also have a 1.25" adapter. Click to read more...	2
Type of build Type of build X There are basically two different construction types: the rack and pinion focuser and the Crayford focuser. Click to read more...	Linear Crayford
Gear reduction	1:11 fine focusing
Free aperture (mm)	76
Mount Mount X A mount is the foundation of an astronomical telescope. It usually consists of the mount head and an appropriate tripod. Click to read more...
Type of build Type of build X Describes the exact construction of the particular mount and thereby further subdivides the different types of mount. Click to read more...	OTA OTA X An OTA is an optical tube without a mount. It is short for optical tube assembly. Click to read more...
Included accessories Included accessories X Many telescopes came with simple accessories. Click to read more...
Tube clamps	yes
Finder scope Finder scope X A mini telescope used to locate a celestial object. There are optical finders and red dot finders. Click to read more...	9x50 Right-Angled Finderscope Champagne with White Bracket
Deviating optics Erecting systems X A telescope always displays an object upside down. This law of optics can only be compensated for by an erecting system. Erecting lenses, diagonal mirrors or Amici prisms provide you with an upright image. Diagonal mirrors provide an upright but back-to-front image and Amici prisms provide an upright and right-sided image. Click to read more...	2", 90° star diagonal
Prism rail	Losmandy-Style
Eyepiece adaptor	1,25" - 2"
Dew Shield	yes
Carrying case	yes
General
Total weight (kg)	6,3
Series	ESPRIT
Area of application Area of application X The area of application will give you a broad overview of the purposes for which the telescope is suited. Click to read more...
Astrophotography	yes
recommended for
Advanced	yes
Beginners	no
Observatories	no

Telescope accessories > Prisms & Diagonal mirrors
	Omegon 1,25'' Amici Prism 90°	$ 99.00*
	Omegon 45°, 1.25'' to 1.25'' Amici prism	$ 99.00*
	Omegon Star diagonal with 99% reflection, 2"	$ 119.00*
	Baader Planetarium 2" 90° Amici prism	$ 278.00*
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Telescope accessories > Transport & storage
	Omegon transport bag for 5'' OTAs	$ 59.00*
	Omegon aluminium case, large	$ 49.90*
	Omegon Bumbag for eyepieces	$ 39.90*
	Omegon eyepiece case	$ 59.00*
	Omegon transport bag for accessories	$ 59.00*
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Telescope accessories > Other
	Telrad - projection finder scope with base	$ 73.00*
	Omegon 2'' - 1.25'' Twist-lock adapter	$ 49.90*
	Omegon 2'' adapters with reducer 1.25 ''	$ 24.90*
	Omegon 2'', 2X premium Barlow lens	$ 249.00*
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Eyepieces
	Omegon LE Series Eyepiece, 12.5mm, 1.25''	$ 99.00*
	Omegon Eyepiece LE Planetary 9mm 1,25''	$ 99.00*
	Omegon Eyepiece LE Planetary 6mm 1,25''	$ 99.00*
	Omegon Eyepiece LE Planetary 5mm 1,25''	$ 99.00*
	Omegon Eyepiece LE Planetary 3mm 1,25"	$ 99.00*
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Eyepieces
	Omegon Ultra Wide Angle eyepiece 9mm 1,25"	$ 59.00*
	Omegon Ultra Wide Angle eyepiece 15mm 1,25"	$ 59.00*
	Omegon Ultra Wide Angle eyepiece 20mm 1,25"	$ 59.00*
	TeleVue Eyepiece Ethos 17mm 2"	$ 1,060.00*
	TeleVue Nagler Type 5 2" 31mm eyepiece	$ 930.00*
	Omegon Panorama II 2'', 21mm eyepiece	$ 229.00*
	Omegon Panorama II 2'', 15mm eyepiece	$ 229.00*
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Eyepieces > Other
	Omegon Illuminated crosshair eyepiece, 12.5mm	$ 79.00*
	Baader Hyperion Universal Mark IV 2", 8-24mm Zoom eyepiece	$ 278.00*
	Omegon eyepiece and accessories case, large	$ 219.00*
	Omegon Deluxe eyepiece case, optimised for focal lengths up to 1200mm	$ 299.00*
	Omegon SWA 32mm, 2” eyepiece	$ 139.00*
	Omegon SWA 20mm eyepiece, 1.25”	$ 99.00*
	Omegon Flatfield ED eyepiece 12mm 1,25''	$ 119.00*
	Omegon Flatfield ED eyepiece 5mm 1,25''	$ 119.00*
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Filters > Moon filters & Polarizing filters
	Omegon Filters Moon filter 1.25"	$ 19.90*
	Omegon Filters Variable grey filter 1.25"	$ 49.90*
	Omegon Filters 2'' Moon filter 25% Transmission	$ 24.90*
	Omegon Filters Variable Polarising Filter 2"	$ 69.00*
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Filters > Nebulae filters
	Omegon Filters Nebula/ city light filter 1.25 ''	$ 39.90*
	Omegon Filters UHC Filter, 1.25“	$ 69.00*
	Omegon Filters OIII filter 1.25''	$ 69.00*
	Omegon Filters 1.25'' deep sky filter	$ 59.00*
	Omegon Filters 1.25'' Clear Sky filter	$ 99.00*
	Omegon Filters Light Pollution Filter, 2”	$ 59.00*
	Omegon Filters UHC Filter, 2"	$ 99.00*
	Omegon Filters OIII Filter 2"	$ 99.00*
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Filters > Other
	Omegon Filters Color filter set 1,25'' (6 pieces)	$ 59.00*
	Omegon 2'' filter wheel	$ 149.00*
Astrophotography > Camera adaptor
	Omegon Camera adapter 1.25"	$ 39.90*
	Omegon T2-Ring for Canon EOS	$ 24.90*
	Omegon T2-Ring für Nikon	$ 34.90*
	Baader Adaptors Plug-in connection 2 " A/T-2a for putting into all 2 " Okularauszüge	$ 40.90*
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Astrophotography > Camera mounts
	Omegon Easypic Universal Smartphone Adapter	$ 89.00*
	Omegon Universal digital camera adapter	$ 39.90*
	Baader Microstage II	$ 56.00*
	Omegon Universal digital camera adapter	$ 29.90*
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Astrophotography > Other
	Skywatcher Flattener M48 for Esprit-100ED	$ 244.00*
	Lacerta Camera Stand Alone Autoguider MGEN Version 3	$ 860.00*
	Omegon Guidescope module finder	$ 99.00*
	Omegon Off-Axis-Guider Advanced T2	$ 149.00*
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Mountings & accessories
	PrimaLuceLab Tube clamps PLUS 131mm	$ 290.00*
Observatories
	Omegon Tent observatory	$ 179.00*
Media > Astro books
	Willmann-Bell Book Annals of the Deep Sky Volume 1	$ 34.90*
	Cambridge University Press Book Cosmic Challenge	$ 42.90*
	Springer Book Astrophotography is Easy!	$ 27.90*
Media > Other
	Omegon Star chart Planisphere	$ 14.90*
Outdoor
	Omegon LED headlamp	$ 14.90*
	Omegon Astronomy torch Astro-Flashlight	$ 14.90*
Maintenance & Cleaning > Lens cleaners
	Omegon "5- in- 1" Optics Cleaning Set	$ 18.90*
	Omegon cleaning system	$ 8.90*
	Baader Lens Cleaning Pump Spray Optical Wonder 100ml	$ 20.90*
Maintenance & Cleaning > Other
	Omegon Lens Agent 20x20cm	$ 5.90*
	Omegon SPUDZ microfaser cleaning cloth	$ 10.90*
Miscellaneous > Face masks
	Masketo face mask with palm print 1 piece	$ 15.90*
	Masketo face mask with astronomy theme Solar Corona 1 piece	$ 15.90*
	Masketo face mask white with astronomy theme Pleiades 1 piece	$ 15.90*
	MYONE Face mask size L 1 piece	$ 8.90*
	Masketo Face mask polyester Corona Borealis	$ 13.90*
	Face mask KN95 10 pieces	$ 46.90*
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Solar Observation
	Baader Sun filter foil A4 210x297mm	$ 28.90*
	Baader Sun filter foil AstroSolar® ECO-size OD 5.0 140x155mm	$ 20.90*