Canon filed a patent for a EF 1000mm f/5.6 DO lens

• 8 years ago
• Categories: Canon
• Tags: Patents

Canon filed a new patent application in Japan for a EF 1000mm f/5.6 DO lens. Here are the details:

• Patent publication: 2016-102852
• Published on: 2016.6.2
• Filing date: 2014.11.27
• Zoom ratio: 1.00
• Focal length: 950.00
• F-number: 5.80
• Angle of view: 1.30
• Image height: 21.64
• Overall length of the lens: 485.94
• BF: 0.40
• Diffractive optical element (first group)
• Inner focus

Via Egami