Minolta MACRO TWIN FLASH 2400 - Selecting Apertures - TTL Flash

3130
BASIC FLASH MODES
3.5 ~ 76
2.4 ~ 54
2 ~ 45
1.4 ~ 32
1.2 ~ 27
0.85 ~ 19
1.4 ~ 32
3.5 ~ 76
2.4 ~ 54
2.8 ~ 64
2 ~ 45
1.7 ~ 38
1.2 ~ 27
1.4 ~ 32
2.8 ~ 64
2 ~45
2.8 ~ 64
2 ~ 45
2 ~45
1.4 ~ 32
1.2 ~ 27
2.4 ~ 54
1.7 ~38
2.8 ~ 64
2 ~ 45
2 ~45
1.4 ~ 32
1 ~ 22
Upper set of numbers is for two twin flash units.
Lower set is for one twin flash unit.
Ring flash is common for 1 ~ 4 tubes.
AF 100mm f/2.8 Macro (Lens aperture range: f/2.8 - f/32)
2.8 ~ 64
2 ~ 45
2.8 ~ 64
2 ~ 45
2 ~ 45
1.4 ~ 32
1.7 ~ 38
2 ~ 45
1.4 ~ 32
2.8 ~ 64
2 ~ 45
2 ~ 45
1.4 ~ 32
1.2 ~ 27
1.7 ~ 38
1.2 ~ 27
2 ~ 45
1.4 ~ 32
1.7 ~ 38
1.2 ~ 27
1 ~ 22
AF 200mm f/4 Macro Apo G (Lens aperture range: f/4 - f/32)
• The tables beginning at the bottom of this page shows values when
ISO 100 film is used without the wide-angle adapter or diffuser. For
other ISO film speeds, or if you use the wide-angle adapter or diffuser,
adjust the aperture settings according to the tables on page 32.
• The aperture ranges given in the tables are calculated values; the
actual lens will have its own usable aperture range.
Example: Using an AF 50mm f/2.8 Macro lens with a pair of twin flash
units with no arm, at a magnification ratio of 1:1. The range of accept-
able apertures is calculated to be from f/4 to f/90 (bold type in the
table). However, the actual range possible with this lens is f/4 to f/32.
• The following tables show data for certain lenses and magnification
ratios. For other lenses and magnification ratios, see pages 60 and
62.
Arm (short)
60 ° position
Without arm
Arm (long)
90 ° position
2.4 ~ 54
1.7 ~ 38
1.4 ~ 32
1 ~ 22
5.6 ~ 128
4 ~ 90
1:1.5
2.8 ~ 64
2 ~ 45
1.4 ~ 32
1 ~ 22
8 ~ 180
5.6 ~ 128
1:2
4 ~ 90
2.8 ~ 64
2 ~ 45
1.4 ~ 32
5.6 ~ 128
4 ~ 90
1:3
4 ~ 90
2.8 ~ 64
2.4 ~ 54
1.7 ~ 38
4.5 ~ 108
3.5 ~ 76
1:4
4.5 ~ 180
3.5 ~ 76
2.8 ~ 64
2 ~ 45
Upper set of numbers is for two twin flash units.
Lower set is for one twin flash unit.
Ring flash is common for 1 ~ 4 tubes.
AF 50mm f/2.8 Macro (Lens aperture range: f/2.8 - f/32)
AF 50mm f/3.5 Macro (Lens aperture range: f/3.5 - f/32)
Magnification
ratio
4 ~ 90
2.8 ~ 64
2.8 ~ 64 3.5 ~ 76 3.5 ~ 76 2.4 ~ 54 2 ~ 45Ring Flash
Selecting Apertures - TTL Flash -
AF Macro Zoom 3X-1X f/1.7-2.8 (Lens aperture range: 1X: f/5.6 -
54, 3X: f/6.7 - 64)
1:1.5 1:2 1:3
Magnification
ratio
Arm (short)
60 ° position
Without arm
Arm (long)
90 ° position
Ring Flash
1:1.5 1:2
Magnification
ratio
Arm (short)
60 ° position
Without arm
Arm (long)
90 ° position
Ring Flash
1:1
1:1
1:1
3X
Magnification
ratio
1X
4.5 ~ 108 4 ~ 90Ring Flash