When I reached home just now, I noticed this fellow was munching its dinner. So I quickly took out my PEN camera and experiment with the technique I read from Robin Wong’s blog, i.e. turn off the noise filter and use flash for sharper macro. My filter was normally turn on. No wonder the close-out shot or night scene was kind of smeared or soften.
Below is the 100% crop of the image. So the recommended settings indeed work well. Thanks Robin. No caterpillar was hurt during the experimental shot. 🙂