If you are interested in adding more gears for your camera, whether micro four third or dslr, I highly recommend getting ND filter. If you want a long exposure that reduces the amount of light entering your lens, you go for an ND filter. Usually you get ND filter with 3-stops in strength - 2,4,8. But this is 10, which is quite extreme. This K&F is a 10 stop one which basically reduces the light entering your lens by approximately 10 stops. You can get incredible images using slow shutter speed or wide apertures- for example street photography, moving clouds, moving water(such as river, lake, ocean) or waterfall. Make sure you have your camera mounted on a tripod (due to long exposure) or else you won't he happy with the output.I recommend downloading an image or app to help you calculate the shutter speed.You will need to find a suitable composition and then take a test shot without the filter. Move your dial to manual mode, before you put the filter on (otherwise the filter will make the composition very dark and your lens will try to continue to auto focus). Calculate what shutter speed you will need to adjust and take the shot.For the price you pay for this K&F, the image turned out pretty good. Although, there is a color cast, so you will need to either adjust it in your camera or use photo processing software such as lightroom to adjust the color cast. I can;t wait for this virus to be over so that I can take my camera and this filter out to shoot some water falls!!*Unfortunately I am unable to upload a photo right now, but when it's back on, I will upload a pic.