Embed Size (px)
DESCRIPTION
Grinding f/3 Mirrors. Mel Bartels RETA 2010. Deep Curves. Meniscus Shape. Laps. Ronchi Test. Indoor Star Test. Outdoor Star Test. Equivalents. 50 cm f/5 is equivalent to 34 cm f/3. Conclusion. With coma corrector, cannot detect visual difference from f/5 - PowerPoint PPT Presentation
Citation preview
Grinding f/3 Mirrors
Mel BartelsRETA 2010
Deep Curves
Meniscus Shape
Laps
Ronchi Test
Indoor Star Test
Outdoor Star Test
Equivalents
• 50 cm f/5 is equivalent to 34 cm f/3
Conclusion
• With coma corrector, cannot detect visual difference from f/5
• Plan on practicing parabolization
