The latter shows up the highly granular nature of the cytoplasm. The video seems to cope well with phase images. I have found however, that most times using the video, all automatic circuitry should be turned off, especially that for colour balance. I have only had phase contrast available on my microscope relatively recently. As in many things in life, once you have something you wonder how you ever survived without it.
Phase contrast is no exception and is especially useful for protozoa.
These two images are both of the ciliate Paramecium . They both show the organism rather flattened. This is due to the presence of silk fibres in the water on the slide. I find that this slows down the movement of ciliates quite well. Just tease out fibres from a piece of silk with tweezers under a stereo mic' and put onto the slide.