Mamiya C330f Professional Repair Manual Page 27

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Mamiya TLR Summary 27
4.5 105mm f3.5
Composition
4 elements, 3 groups
Picture angle
41 degrees 20 minutes
Minimum aperture
f32
Filter diameter (mm)
46
Lens hood diameter (mm)
48
Closest focus (cm)
64.5
Subject coverage and reproduction
ratio at closest focus (cm)
21.8 x 21.8
Weight (grams)
Flash synchronisation
X,M
Other characteristics
Long focus
4.6 105mm f3.5 D & DS
Composition
5 elements, 3 groups
Picture angle
41 degrees 20 minutes
Minimum aperture
f32
Filter diameter (mm)
46
Lens hood diameter (mm)
48
Closest focus (cm)
57.5
Subject coverage and
reproduction
ratio at closest focus (cm)
17 x 17 1 to 3
Weight (grams)
365
Flash synchronisation
X,M,V (self-timer on DS model)
Other characteristics
The 105mm D appears to be an optical re-design from the earlier 105mm black,
with a consequent change in back-focus. At the moment the best evidence
suggests that only the last DS variant had a viewing lens diaphragm and depth of
field calculator ring. Most users agree that the DOF preview is of limited utility,
but the DOF calculator is useful if treated conservatively. Long focus. Focus
scales may not match on pre C330s cameras. The D or DS engraving is in red.
4.7 135mm f4.5
Composition
4 elements, 3 groups
Picture angle
33 degrees
Minimum aperture
f45
Filter diameter (mm)
46
Lens hood diameter (mm)
48
Closest focus (cm)
90.2
Subject coverage and reproduction
ratio at closest focus (cm)
25.2 x 25.2 1 to 5.5
Weight (grams)
370
Flash synchronisation
X,M
Other characteristics
The lens diaphragm and shutter is located behind the lens elements, and is
exposed when the rear cap is removed. Long focus design.
4.8 180mm f4.5
Composition
4 elements, 3 groups
Picture angle
24 degrees 30 minutes
Minimum aperture
f45
Filter diameter (mm)
49
Lens hood diameter (mm)
50
Closest focus (cm)
129
Subject coverage and reproduction
ratio at closest focus (cm)
27.5 x 27.5 1 to 5
Weight (grams)
? Probably about 600
Flash synchronisation
X,M
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