By safe shutter, speed I assume you are wanting to know the slowest shutter speed that will not capture noticeable camera shake?
There is no absolute answer to this. How much do your hands shake? The 'rule of thumb' I have used is 1/{focal length}. For a 400mm lens you would need a 1/400 sec or to use a tripod to avoid noticeable camera shake. For the 18mm you might get away with 1/20 or so.
Although I despise using tripods, they will always give a sharper picture. You might need a microscope to tell, but you can tell.
It depends on what camera you are using.
It depends on what camera your using
To change the shutter speed on a camera, you typically adjust the settings using the dial or menu options on the camera. Shutter speed controls how long the camera's shutter remains open when taking a photo, affecting how motion is captured in the image. By selecting a faster shutter speed, you can freeze fast-moving subjects, while a slower shutter speed can create a sense of motion blur.
To change the shutter speed on a Canon T7 camera, you can use the camera's manual mode and adjust the settings using the control dial. Simply turn the dial to select the desired shutter speed, which will determine how long the camera's shutter remains open when taking a photo.
To capture sharp and detailed photos using a fast shutter speed, adjust your camera settings to increase the shutter speed, use a tripod to minimize camera shake, and ensure proper focus on your subject. Additionally, consider using a higher ISO setting to compensate for the faster shutter speed in low light conditions.
Shutter priority mode allows you to set the desired shutter speed while the camera adjusts the aperture, whereas aperture priority mode lets you choose the aperture setting while the camera adjusts the shutter speed.
Using a high-speed shutter camera for capturing fast-moving subjects allows for crisp and clear images without motion blur. This type of camera can freeze fast action, capturing details that may be missed with a slower shutter speed. Additionally, high-speed shutter cameras are ideal for sports photography and wildlife photography, where subjects are constantly in motion.
It depends on what camera your using, some have it so that the shutter will stay open for seconds long. Some have a,"bulb" mode where the shutter stays open for the whole time you have the shutter-release button pressed.
"Shutter Angle" refers to rotary shutters used in motion picture cameras, a lower shutter angle (in degrees) means less light is allowed to expose the film and less motion blur is captured, higher angle and more light is let and more motion blur appear on flim. 180 degrees or 1/48th of a second (at 24 fps) is considered normal. The shutter angle is controlled by the shape of the rotary shutter, some cameras allow you to change the shape of the shutter or swap out for different shape shutters. Some newer or high-end cameras allow you to change the shape of the shutter while still in-camera. Your question was filed under photography, so possibly you mean "shutter speed" if your camera allows for manual control of the shutter speed it will be in 1/Nth of a second increments. A shutter speed of 1/125th of a second was taught to me as a good shutter speed to start at for medium focal lengths for a beginning shooter - to avoid blurry pictures. Also, if you're trying to freeze water in motion, birds in flight or people in motion, a high shutter speed will work well. Above 1/500th or 1/1000th of second if your camera is capable will create the desired effect. To answer effectively we probably need to know the model of camera you are using, and the purpose, happy shooting!
Use shutter priority mode (S mode on dial) or manual mode (M on dial) and then select the speed you want by using the dials.
When using a Nikon 42x P510 camera it is very easy to slow down the shutter speed. On the side of the camera there is a dial that you can access to slow or speed up the shutter speed.
Shutter speed can also be refered to as exposure on some cameras.. the lower the # the longer the shutter stays open... Usually slowing shutter speeds is done for effects photos or low light conditions.. It's crucial that the camera remain still when using a slow shutter speed.