Pentax K-70 Operating Manual page 62

t Memo
• The flash modes that can be selected vary depending on the
capture mode.
Capture Mode
*1
R, S
G, H, J
I, K, L, M
3
*1 The built-in flash cannot be used for some scene modes. (p.118)
• You cannot take pictures while the built-in flash is being
charged. If you want to take pictures while charging the flash,
set [8 Release While Charging] in the E2 menu.
• Depending on the lens being used, the use of the built-in flash
may be limited. (p.122)
• When the built-in flash is used in J mode, the shutter speed
automatically changes over a range from 1/180 seconds to a
slow shutter speed depending on the lens being used. The
shutter speed is locked at 1/180 seconds when a lens other
than a DA, DA L, D FA, FA J, FA, or F lens is used.
• When the built-in flash is used in I, K, or L mode, any
desired shutter speed of 1/180 seconds or slower can be set.
• The built-in flash is optimum for a subject at a distance from
approx. 0.7 m to 5 m. Vignetting may occur when used at a
distance closer than 0.7 m (this distance varies slightly
depending on the lens being used and the sensitivity setting).
• For details on the use of external flashes, refer to "Functions
when Using an External Flash" (p.125).
60
Selectable Flash Mode
A, B, C, D
C, D, E, F, H, K
C, D, G, K
Guide Number
Guide
Sensitivity
Number
Approx. 12
ISO 100
Approx. 17
ISO 200
Approx. 24
ISO 400
Approx. 34
ISO 800
Approx. 48
ISO 1600
Approx. 68
ISO 3200
Guide
Sensitivity
Number
Approx. 96
ISO 6400
Approx. 136
ISO 12800
Approx. 192
ISO 25600
Approx. 272
ISO 51200
Approx. 384
ISO 102400