Complex sentence: However, with the smaller sensor The Four Thirds System has crop factor (focal length multiplier) of about 2, and while this enables longer focal length for greater magnification, it doesn't aid the manufacture of wide angle lenses.
Split into simpler sentences: However, with the smaller sensor The Four Thirds System has crop factor (focal length multiplier) of about 2. While this enables longer focal length for greater magnification, it doesn't aid the manufacture of wide angle lenses.