Olympus E.Zuiko Auto-T 150mm f4 Aperture: Open f4@‘S‘Μ‘œA’†‰›E‰E’[EΆ‰Ί’[‚ΜŠg‘ε‘œ‚̏‡‚Ι•\Ž¦ –˜Io‰ίθ’ˆΣ@Kenko PRO ND-4 FilterŽg—p