SkyWatcher Evoguide 50DX APO Guide Scope Astrograph (S11174)
$375.00
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SkyWatcher Evoguide 50DX APO Guide Scope Astrograph (S11174)
$375.00
ED Optics
Matched Doublet Lens Assembly
Fast f/4.8
Bright High Contrast Views
Helical Focuser
Precise 1.25 Inch Focus
Ultra Lightweight
Weighs Under Two Pounds
M42 Mount
Direct Guide Camera Attachment
Vixen Dovetail
Complete Tube Ring Assembly
Precision Guiding OpticsClear Contrast Rich Deep Sky Alignment
The Sky-Watcher Evoguide 50DX APO Guide Scope Astrograph combines premium ED doublet optics into a lightweight, ultra-portable guide scope design. Delivering coal-black sky backgrounds and exceptional contrast, this APO guide scope ensures your tracking setup achieves razor-sharp star profiles for high-precision astrophotography.
Versatile Wide Field AstrographFrom Guide Scope to Imaging Lens
Engineered for maximum versatility, the Sky-Watcher Evoguide 50DX APO Guide Scope Astrograph features a high-grade 50mm matched doublet lens with an extra-low dispersion (ED) element to eliminate chromatic aberration. Rear M42 threading allows effortless connection to popular guide cameras, while a robust single-speed helical focuser enables fine focus control. When paired with an optional focal reducer, the Sky-Watcher Evoguide 50DX transforms into a fast, low-focal-length wide-field astrograph, capturing wide deep-sky views with exceptional clarity.
Technical SpecificationsComprehensive Product and Optical Data
Optical Design
ED Doublet Refractor
Lens Coatings
Fully Multi-Coated
Aperture
50mm
Focal Length
242mm
Focal Ratio
f/4.8
Focuser
1.25" Helical
OTA Length
10.5 inches
OTA Diameter
2.2 inches
OTA Weight
1.9 lbs with accessories
Dawes Limit
2.32
Rayleigh Limit
2.79
Limiting Magnitude
11
Minimum Magnification
9x
Maximum Magnification
98x
Mounting System
Vixen-Style Dovetail with Guide Rings
Corrector Included
No (close)
Case Included
No
Key Optical CapabilitiesEngineered for High Performance Tracking
Apochromatic Lens50mm Matched ED Doublet
Optical Speed242mm Focal Length at f/4.8
Helical Focuser1.25 Inch Fine Focus System
Camera MountM42 Threaded Rear Ring
Mounting HardwareVixen Dovetail Plate and Rings
Multi-Use DesignGuide Scope and Portable Astrograph
Frequently Asked QuestionsEverything you need to know
What cameras work with the Sky-Watcher Evoguide 50DX APO Guide Scope Astrograph?
The Sky-Watcher Evoguide 50DX APO Guide Scope Astrograph features standard M42 rear threads and a 1.25-inch receiver, making it compatible with most dedicated astronomy guide cameras and planetary cameras.
Can the Sky-Watcher Evoguide 50DX APO Guide Scope Astrograph be used for wide-field imaging?
Yes, when combined with an appropriate focal reducer or field flattener, the Sky-Watcher Evoguide 50DX APO Guide Scope Astrograph serves as a fast, low-focal-length lens for capturing stunning wide-field deep-space photographs.
Does the Sky-Watcher Evoguide 50DX APO Guide Scope Astrograph include mounting rings?
Yes, the Sky-Watcher Evoguide 50DX APO Guide Scope Astrograph comes complete with adjustable guide tube rings, a finder stalk, and a Vixen-style mounting plate right out of the box.
What is the aperture and focal ratio of the Sky-Watcher Evoguide 50DX APO Guide Scope Astrograph?
The Sky-Watcher Evoguide 50DX APO Guide Scope Astrograph features a 50mm aperture and a 242mm focal length, yielding a fast focal ratio of f/4.8.
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