Straighten a photo in Photos?

Hey there Marc, when you're in Photos, and you click on edit, then crop, a little dial will come up on the right hand side of the photo you're editing. Just grab the tiny blue triangle with your mouse and you should be able to straighten it by moving that up or down.

Straighten is now combined with the Crop command, because after straightening the photo needs to be cropped.

It now has an automatic mode and tries to find the horizon and vertical lines automatically. Just click the "Auto" button for best result. Or straighten manually by dragging the blue triangle that chachkimoochpointed out.

You're welcome 🙂

The tool is a little hidden but your explanation was very clear about finding it.

There are many more hidden treasures in the Adjustments panel.

When you click the "Adjust" button , there are only a few adjustments shown. Click the blue "Add" button, to reveal more of them and to add them to the default set.

And most of the adjustments have disclosure triangles to reveal advanced setting, like "Highlights and Shadows", etc.

Hover to the right of "Light": You will see the "Auto" button appear and a downarrow. Click this downarrow to reveal the advanced options:

You're very welcome! This is my very first time actually answering a question instead of asking one! lol

You're very welcome! This is my very first time actually answering a question instead of asking one! lol

A nice start! Keep it up! 🙂