According to the patent, Tamron is in the process of developing new high-quality lenses: 300mm F2.8, 400mm F4 and 500mm F4.
Patent information
Publication number: No. 2017-223891 P2017-223891A
Date of publication: December 21, 2017. Heisei 20 2017.12.21
Patent application title: Optical system and imaging apparatus
Option 3: 500mm F4
Focal length: 485.045 mm
Aperture: 4.001
&omega : 2,530
Image height: 21.64mm
Back focus: 125.2621 mm
Length of lens: 420.001mm
Option 2: 400mm F4
Focal length: 396.296 mm
Aperture 4.0
&omega : 2,963
Image height: 21.64 mm
Back focus: 102.3549mm
Lens length: 332.36 mm
Option 1: 300mm F2.8
Focal length: 304.799 mm
Aperture: 2.8
&omega : 3,997
Image height: 21.64mm
Back focus: 70.1919mm
Length of lens: 298.38mm
Great to hear that Tamron is developing three new lenses! I would love to know more about them. Could you provide some details such as the focal lengths, maximum aperture, and any unique features or improvements these lenses might offer? Also, any tentative release dates would be greatly appreciated. Thank you!
That’s great news! Can you provide any details or hints about what these new lenses might be? Are they for specific camera models or compatible with various ones? And most importantly, when can we expect them to be released?