Stop pressing the Button
Whenever you press the shitter release button on your camera you introduce an element of camera shake. It can’t be helped. At faster shutter speeds (or under bright light conditions) this camera shake is not a factor and will have no effect of the image you take. But at lower speeds or in darker environments then this slight shaking will result in a slight blurring. This increases as the speed reduces still further.
Camera “shake” technology gets better all the time. In the latest cameras and smart phones it’s at the point where the images are just that good. But ultimately we want to aid the process of taking great pin-sharp images and not rely the technology, no matter how good it is.
As well as a tripod, you should consider a camera release mechanism. These come as either cable types or remotes. And they can also be used on some of the newer smart phones.
These are just thin cables that screw into the camera’s shutter release button. They’re normally around 12 inches long (30cm), although you can get longer ones if required. You hold the other end between the index finger and middle finger and press the button, on the end, with your thumb.
Because the cable is flexible and shake your thumb introduces into pressing the button is dampened within the cable and not transferred to the camera. The result is a perfect crisp shot.
These consist of two parts. The remote, which has the shutter release button and a small receiver, that attaches to the camera. This approach uses either radio or the more common infra-red to link the remote to the receiver.
The remote is my preference because they allow you to be away from the camera and your completely isolated from it. It allows you to change arrangements of objects and retake the shot without going backwards and forwards to the camera.
There are ways to connect your cell phone to your camera. It’s called tethering. Normally this is specific software produced by your camera manufacturer and it allows you to control all the cameras functions from your phone or tablet.