Using the item sliding glitch, it is possible to trick the camera into detaching itself from Link's position. This allows Link to hookshot things he shouldn't be able to from where he is standing.
By item sliding into some slopes, you can get the camera to sink very quickly under the ground. This is called a Weirdshot.
If you are using the hookshot as your item sliding item, you can fire the hookshot while the camera is under the ground to stop it from sinking. From there, you can aim around and hookshot whatever you want. You can also move Link (and consequently the camera since the camera follows your movement) around by performing an L-Slide, but be careful as to not hold ZL when you are not in the action of firing the hookshot or the camera will snap back to Link, cancelling the weirdshot. If your Weirdshot is too low to your taste, you can tap down on your control stick to make the camera slightly go back to Link.
Unfortunately, a Weirdshot done with any first person item that is not the hookshot will cancel itself right as you use the item.
It is really easy to cause a Weirdshot when Link is heavier than normal. To perform a weirdshot that way, equip the iron boots or make sure that you have enough morths on you to be considered heavy, and item slide backwards. This will make the camera sink very quickly into the ground, but contrarely to a standard weirdshot, it will also make the camera shake like crazy in unpredictable directions.
Contrarely to a standard Weirdshot, firing the hookshot when the camera is underground using this technique will make the camera immediately snap back to Link no matter what. If you fired the hookshot extremely far out of bounds, you can even be stuck in the hookshot firing animation for several minutes.
Instead of item sliding backwards while being heavy, you can also item slide forward and hold up on the control stick to make your speed positive, and this will also cause a Weirdshot.
These kinds of Weirdshots are usually extremely inconsistent.
It is possible to get the camera to detach from Link while gaining height instead of losing height. This is called an Oddshot.
First, item slide with the hookshot and make your speed positive (by holding up on the control stick if you are item sliding forward for exemple). You must then release your speed without leaving the first person camera (by sliding off the piece of collision you are item sliding against for exemple). Then, a single frame after that, you need to collide with a slope. This will cause the camera to be higher than it is supposed to. Release the hookshot when that happens to get an Oddshot.
Interestingly, how high your Oddshot is entirely depends on how far you were one frame before colliding with the slope, and has nothing to do with your speed. To get very high Oddshots, you will want to charge your item slide as far away as possible to the slope.
You can still L-Slide around to move the camera during an Oddshot, and manage your height by tapping down on the control stick.
The main use of oddshots is to skip the Cliff Plateau Cave in 100% speedruns.
This method of getting a Weirdshot is harder but works with every item (grappling hook, boomerang, bow, hookshot). First, equip the iron boots, aim at a slope and item slide backwards into a wall. Because you have iron boots, that will cause a Weirdshot (see Weirdshots with Iron Boots above). Then, once the camera is very far down, frame perfectly press A to quit first person mode, and one frame after use the item sliding item of your choice. That will give you an Oddshot with the item you pressed. This is the only known way to get an Oddshot with items other than the hookshot.