Can't get this to work, could we get a video?
Do you have the pictograph? I am not sure, but it may be required.
Edit:
Some random pictograph stuff:
You can enter the bubble shooting mode and first person camera at the same time as deku. you'll be in camera mode, but with the target circle on screen. You can take pictures with the target present on them.
When taking pictures in 2D, they can not be displayed in 3D.
If you take the picture in 3D, and display it in 2D, you'll see the left picture. (so things will be seen slightly from the left on the picture)
Entering a flower & going into FPS at the same time time plays the initial burrowing sound, but then it just goes into camera mode like normally.
You can L-Target (and shield) and enter first person at the same time. You'll go into camera mode, but the Return button on the touch screen will be greyed out / disabled.
You can catch something in a bottle and enter first person at the same time. After the dialog is over you go into first person mode.
You can enter grottos (and other loading zones) and enter first person at the same time. You see the pictograph frame thingy on screen as screen fades out..
If you start dancing with kamaro's mask & L-Target and try to enter first person at the same time, the pictograph makes an error sound.
After changing form, pictograph is disabled for a moment.
if you don't have solid ground below you, you can't take out pictograph (like slashing with sword at the very edge at a ledge and attempting to take it out).
after climbing up some ledges, pictograph is disabled for a moment. (related to the point above?)
By timing the pictograph button when going in and out of L-Targeting quickly you can hear the error sound.