One way to sharpen an image is to use the High Pass Filter. To do so, duplicate the layer you want to sharpen by selecting it and pressing Ctrl J (Mac: Command J). Change the duplicate layer’s blend mode to Overlay, then go to Filter > Other > High Pass.
To be comfortable shooting manual you will need to know what your necessary adjustments are. Though these settings are all numeric, there isn't some insane math equation that you need to do to find out what to dial
Layer Groups allow you to easily select, move, mask and manipulate multiple layers as a single unit. With Linked Layers you can move multiple layers whenever you select any individual layer, and it is possible to
Adobe Photoshop is nothing to fear - here are 9 easy tips and tricks to help beginners navigate the breadth of options available to make killer photos look their best. Here’s a quick and easy Photoshop tutorial for beginners to help get you started!