According to the present invention, the low-pass filter effect is adjusted by oscillating the shake-correction member along a predetermined path according to at least one of information on the aperture diameter of a diaphragm contained in a photographing optical system and information on resolving power of the photographic lens, which makes it possible to appropriately prevent moiré and false color from occurring while preventing the resolving power and a sense of resolution from deteriorating.
BRIEF DESCRIPTION OF DRAWINGS
FIG. 1 is a diagram showing main components of an embodiment of a digital SLR camera according to the present invention;
FIG. 2 is a block diagram showing main components of an embodiment of the digital SLR camera which is equipped with an image shake correcting apparatus;
FIG. 3 is a side elevational view of the image shake correcting apparatus of the digital SLR camera;
FIG. 4 shows diagrams for the digital SLR camera, wherein (A) is a graph illustrating the resolvable width between two point sources (Rayleigh resolution limit), and (B) is a graph illustrating the relationship between a diaphragm and Rayleigh resolution limit;
FIG. 5 shows graphs illustrating the resolving power (MTF) of the photographic lens of the digital SLR camera, wherein (A) is a graph illustrating the relationship between the aperture value and the resolving power (MTF) at the same frequency, and (B) is a graph illustrating the relationship between the spatial frequency and the resolving power at the same aperture value;
