Orion Field Flattener for Short Refractors
Best essential upgrade for amateur astrophotographers seeking edge to edge clarity.
This is the essential fix for anyone tired of seeing distorted, blurry stars at the edges of their deep-sky images. It transforms fast, wide-field scopes into precision instruments for full-frame sensors, though you will need to manage the extra weight and back-focus spacing to get the perfect result.
$124.98
at
Highpointscientific
Who it's for
- Astrophotographers seeking professional-grade clarity at the image periphery
- Multi-camera users needing a flexible solution for various imaging setups
- Purists wanting to keep their telescope's native focal length intact
Who should skip it
- Novice imagers who prefer a simple plug-and-play experience
- Astronomers using large-aperture or long-focal-length optical systems
- Full-frame photographers demanding perfectly uniform illumination across large sensors
Performance breakdown
Edge-to-edge sharpness
Effectively eliminates field curvature for crisp, distortion-free corner stars.
Build quality
Robust construction ensures long-term durability for demanding astrophotography sessions.
Optical clarity
Multi-coated elements maintain high contrast and light transmission across the frame.
System versatility
Interchangeable M42 and M48 adapters accommodate diverse camera and sensor setups.
Setup ease
Standard 2-inch barrel design makes installation straightforward for most refractor users.
Sensor compatibility
Optimized for APS-C, though full-frame users may experience slight vignetting.
Key Specs
Weight
0.47 lbs
Barrel Diameter
2 inches
Backfocus
55 mm
Optical Elements
2-element, fully multi-coated
Clear Aperture
38 mm
Compatibility
400mm-660mm focal length refractors (f/5 to f/7.5)
Connection Interface
M42 and M48 adapters included
Know before you buy
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Ask Metto anything about the Orion Field Flattener for Short Refractors before you decide.
