Sony HX300 HELP!!!!

i have been fiddling with my camera and i seem to have altered something that i dont seem to be able to rectify.
about a few hours ago [before i started fiddling] the image completely filled the screen top to bottom.
since fiddling, the image is now a lot narrower, up and down narrower i mean,with some of the screen, top and bottom, not being used ,
can anyone help me with what i have done and how to change it back to full screen ?
col
about a few hours ago [before i started fiddling] the image completely filled the screen top to bottom.
since fiddling, the image is now a lot narrower, up and down narrower i mean,with some of the screen, top and bottom, not being used ,
can anyone help me with what i have done and how to change it back to full screen ?
col

The HX300 has a 4:3 shaped LCD ("Screen Type 2.95 in (3.0 type) (4:3) / 921,600 dots / Xtra Fine / TFT LCD.", per the specs).
If you change the ratio to 3:2 or 16:9 you will get black bands at the top and bottom of the LCD, as you do on TV when watching a 4:3 video on a 16:9 screen, except then the black bands are on the sides. See the 2 samples below and the appropriate Sony Camera Manual page...



If you change the ratio to 3:2 or 16:9 you will get black bands at the top and bottom of the LCD, as you do on TV when watching a 4:3 video on a 16:9 screen, except then the black bands are on the sides. See the 2 samples below and the appropriate Sony Camera Manual page...




The videos are probably jerky because of your movements. Getting smooth videos takes some practice - remember the camera is being guided by you and if you jerk then the video will too. As for which resolution you use for your video it depends to some extent on what equipment you have to play them on. If it is the TV then probably 1080, but try both and see which you like the most.
Sony own advice is here
https://helpguide.sony.net/gbmig/44572431/v1/eng/contents/07/01/01/01.html
but when choosing between the AVCHD and MP4 then AVCHD is the better quality. I believe there are now AVCHD players available for download on the net which are free.
Sony own advice is here
https://helpguide.sony.net/gbmig/44572431/v1/eng/contents/07/01/01/01.html
but when choosing between the AVCHD and MP4 then AVCHD is the better quality. I believe there are now AVCHD players available for download on the net which are free.

Quote: when choosing between the AVCHD and MP4 then AVCHD is the better quality. I believe there are now AVCHD players available for download on the net which are free.
That is true, but being old and a cheapskate, I have an older video DVD assembly program (free download) that will only accept up to 720p and won't do AVCHD. So I am stuck with MJPEG at 720 (from my Canon TX-1). This works fine on a 40" LED TV from a DVD-R disc, which the program has necessarily down-converted to 480. The Canon has OIS, but probably not as good as current models of cameras. My newer Sony SLT-a58 SLR can also do videos, but I normally just leave the files on the SDHC card and use Chromecast from my laptop to the TV, as I don't do much video any more (just on vacation, for waterfalls etc.). That gives me better quality, but no assembly of shots into a single multi-shot video.