Available exposure time options in Long-exposure manual (M*) mode
Even without using Bulb or Time, following exposure time (actually controlled duration) is available:
60, 120, 180, 240, 300, 600, 900 sec.
Note: Long-exposure manual (M*) mode enables an easy manual setting of exposure time over 30 sec. as above. It does not necessarily mean image processing suited to long exposure. Bulb and Time can also be selectable.