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Last revised: 2021-08-23 12:00 GMT-5
Thick Lens Optical Bench
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Thick Lens Primer
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Legend
DOF Mode
Focal Length (f):
mm
...
7mm
8mm
9mm
10mm
12mm
14mm
16mm
20mm
24mm
28mm
30mm
35mm
40mm
45mm
50mm
60mm
85mm
100mm
135mm
200mm
300mm
400mm
500mm
600mm
800mm
1200mm
F#:
...
f/0.50
f/0.56
f/0.63
f/0.71
f/0.79
f/0.89
f/1.00
f/1.12
f/1.26
f/1.41
f/1.59
f/1.78
f/2.00
f/2.24
f/2.52
f/2.83
f/3.17
f/3.56
f/4.00
f/4.49
f/5.04
f/5.66
f/6.35
f/7.13
f/8.00
f/8.98
f/10.08
f/11.31
f/12.70
f/14.25
f/16.00
f/17.96
f/20.16
f/22.63
f/25.40
f/28.51
f/32.00
f/35.92
f/40.32
f/45.25
f/50.80
f/57.02
f/64.00
Effective F#:
2.80
Airy Disc:
1.88
µm
Magnification (m):
x
...
none
1/40x
1/30x
1/20x
1/10x
1/4x
1/2x
1x
Pupil Magnification (p):
x
Distance:
mm
m
in
ft
Internodal (i):
mm
Image Diameter:
mm
...
21.60mm (MFT)
28.40mm (APS-C)
43.20mm
43.26mm (35mm)
43.28mm
55.00mm
57.30mm (65mm)
70.00mm (6x4.5cm)
COC Factor:
...
d/1000
d/1500 (typical)
d/1750 (Zeiss)
COC:
mm
...
0.014mm
0.019mm
0.029mm
0.033mm
0.037mm
0.038mm
0.047mm
points and planes
Object (O)
Front Focal (F)
Front Principal (H)
Entrance Pupil (P)
Exit Pupil (P')
Rear Principal (H')
Rear Focal (F')
Image (I)
Position
∞
100.00mm
50.00mm
60.00mm
62.50mm
50.00mm
0.00mm
0.00mm
Diameter
∞
17.86mm
22.32mm
21.60mm
distance formulas
OF
FH
FP
HH'
H'F'
P'F'
F'I
angle formulas
∡ω/∡ω'
∡α/∡α'
Display Units:
mm
m or mm
feet or inches
feet and inches
View (2ω)
Chief
Projection (2ω')
46.73°
38.13°
Object (2α)
Focus
Image (2α')
0.00°
∞
20.25°
DOF
Far
Focus
Near
∞
∞
30848.18mm
Behind
Total
In Front
∞
∞
∞
DOF with Diffraction
Far
Focus
Near
∞
∞
30912.99mm
Behind
Total
In Front
∞
∞
∞
×
