RF 140mm, 180mm, 200mm F3.5 MACRO

CANON filed a patent describing 140mm, 180mm, 200mm F3.5 macro lenses for 35mm full-frame sensor cameras.

【公開番号】特開2021-152568(P2021-152568A) click here
【公開日】令和3年9月30日(2021.9.30)
【発明の名称】光学系および撮像装置

Embodiment 1
Focal length (mm): 171.00
Ｆ number 3.50
Half angle of view (degree): 7.21
Image height (mm): 21.64
Lens length (mm): 194.49
BACK FOCUS (MM): 47.67


Embodiment 2
Focal length (mm): 174.43
Ｆ number 3.50
Half angle of view (degree): 7.07
Image height (mm): 21.64
Lens length (mm): 189.49
BACK FOCUS (MM): 13.73


Embodiment 3
Focal length (mm): 185.40
Ｆ number 3.50
Half angle of view (degree): 6.66
Image height (mm): 21.64
Lens length (mm): 197.49
BACK FOCUS (MM): 33.39


Embodiment 4
Focal length (mm): 172.00
Ｆ number 3.50
Half angle of view (degree): 7.17
Image height (mm): 21.64
Lens length (mm): 201.89
BACK FOCUS (MM): 31.33


Embodiment 5
Focal length (mm): 176.60
Ｆ number 3.50
Half angle of view (degree): 6.98
Image height (mm): 21.64
Lens length (mm): 192.79
BACK FOCUS (MM): 49.08


Embodiment 6
Focal length (mm): 140.00
Ｆ number 3.50
Half angle of view (degree): 8.78
Image height (mm): 21.64
Lens length (mm): 177.49
BACK FOCUS (MM): 35.17


Embodiment 7
Focal length (mm): 194.00
Ｆ number 4.00
Half angle of view (degree): 6.36
Image height (mm): 21.64
Lens length (mm): 202.49
BACK FOCUS (MM): 39.36