I have an EOS M and I like it very much for photos but as I tried the video mode I was a bit disappointed.
It looks less sharp und less detailed. If I capture a still image ("Photo in Movie") in the 2 MP mode (In the menu the option "Image quality" and then "S2" and "Aspect Ratio" 16:9) I will get a much better quality. Here are two samples, one with the 2 MP Still-Photo-Mode und the other a Screenshot from the video-file:
2 MP Still-Photo-Mode: img4.fotos-hochladen.net/uploads/image3dn50klcmp.jpg
As you can see, the "normal" Photo is much better, better colors, better sharpness, details, etc.
Both were shot at the same time ("Photo in Movie") with the EF-M 18-55mm IS STM, 18 mm, ISO 125, Av 9.0, Tv 1/40.
What I also noticed is, that shadows in the videos are more darker.
So is this normal or does the camera have a defect?
Thank you very much in advance and I look forward to your reply.
You are misunderstanding what you are seeing.
In your example of the "Photo in movie" image, the camera stopped taking a video momentarily, and took a full resolution photo and then reduced it to the "S2" size. You did not take a 2MP photo, you took a 18mp photo and reduced it. Reducing a 18mp photo to a small size will result in a much better photo than a 2K video grab.
Video does not work the same way. About 1/9 of the photosites are used to capture the image, so you get a much poorer quality when you look at one frame. Video works by showing the frames at a high speed, and your eye / brain averages what you are seeing to make it look much sharper than a single frame.
So, your camera is working fine, you are comparing two very different things. If you had set the image quality to "High", you would have a much better still image, but the video would not change. That's because the image quality settings only apply to still photos. As we move to 4K videos, the individual frames will be about 8mb and a single frame will look much better.
Does this help?