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Table 1:
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| Focal Length | Field of View | Size of Sun |
| 50 mm | 27° x 40° | 0.5 mm |
| 105 mm | 13° x 19° | 1.0 mm |
| 200 mm | 7° x 10° | 1.8 mm |
| 400 mm | 3.4° x 5.1° | 3.7 mm |
| 500 mm | 2.7° x 4.1° | 4.6 mm |
| 1000 mm | 1.4° x 2.1° | 9.2 mm |
| 1500 mm | 0.9° x 1.4° | 13.8 mm |
| 2000 mm | 0.7° x 1.0° | 18.4 mm |
| 2500 mm | 0.6° x 0.8° | 22.9 mm |
Image Size of Sun (mm) = Focal Length (mm) / 109
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