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[AlecJames]

@itsstillthinking

I thought your file posted in ongoing anim8or development as an example of a hair pin on the camera path was empty but then I realised the camera is moving

You have 3 keys in the time track and you want the camera to move from the first to the third with the second as a corner, no looping like a hairpin as the camera moves through key 2.

(@All, please jump in and correct me if I get any part wrong.)

The camera follows a Bezier curve (or similar) path from key 1 through key 2 and on to key 3.
Key 2 is a “smooth” key.  From the manual section 8 Animation:
http://www.anim8or.com/learn/manual/8_animation.html#animation_with_key_frames

There are three kinds of keys: corner, smooth and step. Smooth matches the direction and speed that the value changes as it passes through the key. It is what you usually want when you are animating and is the default. Corner keys can have different incoming and outgoing speeds and directions. You would use this where a bouncing ball strikes the ground. Step keys are like corner keys but allows the value to change abruptly. You would use this to make a character suddenly change positions.

You need to double click on the middle key (2) on the time track and change its type to “corner”.  This means that when you open the graph editor you can change the speed and direction of the path through key 2.
 
Open the graph editor, it shows the current path taken by the camera. If the camera position controller is selected in the time track, which it will be if you’ve just changed the key type, the graph editor will open with the camera position key selected on the left and the path shown on the right.

On the left of the path is key1, middle is key2, right is key3. If you double click the middle key on the Z path, its properties will open, close the properties dialog and you will see two handles attached to the middle key. If you left click & drag these handles you can change the shape of the curved path, even make it a corner.

It that what you meant?

[itsstillthinking]

That looks to be exactly it! thank you so much!

[mrbeaver.07]

Thanks! You helped me with problem. I put keyframes for camera movement. All keyframes were needed for static frames. Camera started moving But then, I put corner keyframes and it worked