How to improve your Landscape photography.
A couple of things that you can do to significantly improve your landscape photography even if you are a beginner.
I have listed them below and they're not really technical advice, more like a list of essential things you have to do to get better results.
1. Always use a tripod.
Carrying a heavy tripod can be seen as a pain in the neck but it pays back - your pictures will be free from camera shake regardless of what shutter speed you use, therefore much sharper.
Make sure the tripod is sturdy and heavy otherwise you may get additional problems with shake caused by the wind which you can avoid by shielding your tripod from elements using your own body or landscape features like rocks or a bunch of trees while taking pictures, as well as getting special spikes screwed to legs which will further improve stability.
Tripod also allows you to focus-stack your images or create panoramas which without a solid base wouldn't be possible or give poor effects.
If you don't have a tripod, don't worry - try to use the stable surface to stabilize your camera, however, this could grossly limit possibilities of your composition.
2. Keep your sensor and lenses clean.
This will save you a lot of work in photoshop and it's not hard to do. Always carry a clean cloth with you and remember to use it often. I always have few as they easily get lost. Microfiber is good, but you can get special lens wipes. To keep your sensor clean you can use a special sensor cleaning kit or alternatively there is a more brutal method using a vacuum cleaner as I do.
3. Use manual focus.
Manual focus can give you greater control over what you would like to have a sharp on your picture. Autofocus in older camera models, and in low light situations not always getting things right from my experience.
Observe how different apertures affect your depth of field. This may vary from lens to lens often depends on the factors like glass quality or focal length. White angle lenses have a greater depth of field than telephoto lenses.
Set your focus using live view mode and always zoom 100%, this way you can be sure that your picture is in focus.
4. Use the remote shutter release button or set 3-sec release delay mode in your camera menu.
This will prevent a camera shake while pressing the shutter release button.
5. Check your picture before you go!
Always check your picture on 100% so you can be sure that you have it as you want it!
In case something is not quite right you can always adjust shutter speed, aperture, or focus.