Solar Filter Calculator
Size a solar filter for safe sun observation and estimate solar image size and cost by filter type.
Inputs
Results
Filter Diameter
215 mm
Est. Cost
$508
Solar Image Size11.2 mm
Safety (1-3)3
How to Use This Calculator
- Enter Telescope Aperture (in), Focal Length (mm), and Filter Type.
- Review Filter Diameter (mm) and Est. Cost ($).
- Use Solar Image Size (mm) and Safety (1-3) to inform your decision.
- Use the chart to visualize the results and explore different scenarios by adjusting inputs.
Ad Placeholder
Related Calculators
Telescope Comparison Calculator
Compare two telescopes by f/ratio, light-gathering power, and angular resolution.
Eyepiece Collection Calculator
Plan a 3-eyepiece set for your telescope with low, medium, and high power focal lengths.
Mount Payload Calculator
Check if your telescope and accessories are within your mount's payload capacity for visual or imaging use.
Light Pollution Calculator
Estimate naked-eye and telescope limiting magnitude and SQM reading based on Bortle class, altitude, and moon phase.
Ad Placeholder