Optec TCF-LSI Focuser
Best precision focuser for dedicated long exposure astrophotographers.
A streamlined, all-in-one digital focusing solution that removes the clutter of external controllers. It offers high-precision movement and automatic temperature compensation, making it an ideal choice for astrophotographers who need reliable, consistent focus throughout long imaging sessions.
$595.00
at
Optecinc
More TCF-LSI options
Who it's for
- Astrophotographers shooting in environments with significant nighttime temperature drops
- Deep-sky imagers using professional-grade cameras and heavy accessories
- Remote observatory operators requiring dependable automated focus routines
Who should skip it
- Mobile observers using lightweight portable setups or small refractors
- Budget-conscious astronomers looking for a basic entry-level focusing solution
- Casual users who prefer a simple plug-and-play experience
Performance breakdown
Focus Precision
High-resolution stepping ensures razor-sharp focus for demanding deep-sky imaging.
Thermal Stability
Automatic compensation keeps images crisp as ambient temperatures fluctuate overnight.
Payload Handling
Robust design supports heavy imaging trains without slippage or flexure.
System Integration
Integrated electronics simplify cable management by removing the need for external controllers.
Build Quality
Solid construction provides the reliability needed for long-term, unattended sessions.
Versatility
Broad adapter compatibility makes it an easy fit for most telescope setups.
Key Specs
Focuser Travel
15.2 mm
Payload Capacity
4.5 kg
Weight
1.0 kg
Step Resolution
0.0022 mm
Total Step Travel
7,000 steps
Telescope-side Mount
OPTEC-2400 dovetail
Camera-Side Mount
2-inch drawtube
Power Source
12VDC 1.25A
Safety Certifications
UL, CSA
Know before you buy
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Ask Metto anything about the Optec TCF-LSI Focuser before you decide.
