Stellarvue Reducer Flattener for SV70T
Best high precision optical upgrade for dedicated wide field astrophotographers
This essential optical accessory transforms a standard triplet refractor into a wide-field imaging machine. By reducing the focal length and flattening the field, it delivers sharper, more expansive views perfect for deep-sky astrophotography.
$269.00
More Reducer/Flattener options
Who it's for
- Astrophotographers seeking professional-grade image clarity across full-frame sensors
- Deep-sky imagers looking to maximize efficiency during limited clear nights
- Precision-oriented users requiring a stable and secure mechanical imaging train
Who should skip it
- Novice photographers who prefer a simple plug-and-play setup
- Budget-conscious hobbyists planning to switch telescope brands frequently
- Mobile observers using lightweight mounts near their maximum payload capacity
Performance breakdown
Field Correction
Eliminates edge distortion for crisp, pinpoint stars across the entire frame.
Imaging Versatility
Dual-purpose design handles both focal reduction and field flattening seamlessly.
Backfocus Flexibility
Included extension tube simplifies spacing adjustments for various camera sensor setups.
Mounting Compatibility
Adapts easily to both threaded focusers and standard two-inch drawtubes.
Optical Speed
The 0.8x reduction significantly shortens exposure times for deep-sky imaging.
Build Precision
Robust construction ensures reliable alignment during long-exposure astrophotography sessions.
Key Specs
Compatibility
SV70T 70 mm f-6 triplet apochromat
Focal Reduction
0.8X
Focal Length
336 mm
Focal Ratio
f-4.8
Filter Thread
48 mm
Backfocus
55 mm (with 11 mm extension), 66 mm (without extension)
Mounting
Threads into 2.5 inch focuser, slides into 2 inch focuser
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