The highest shutter speed available to you will give you the darkest exposure, while the lowest shutter speed available will give you the brightest exposure
It is impossible for software alone to "act as a camera". You have to have at least a minimum amount of hardware as well, such as an imaging chip.
An enthusiast can start with a camera which offers at least control of fundamental variables like aperture, shutter speed, ISO, white balance, flash (on/off). Later on one can go full steam with purchase of Digital SLR and lenses.
With a manual shutter speed for any stationary subject you should not go any slower than 1/60th of a second. That way you won't get a blurry image, but you still are letting in enough light into the sensor of your camera. Therefore for a landscape use the smallest 'f' stop possible provided the shutter speed is at least 1/60th second.
To capture fast-moving subjects with a DSLR camera, adjust the shutter speed to a faster setting. This will help freeze the motion and prevent blurriness. Start with a shutter speed of at least 1/500th of a second and increase it as needed. Experiment with different speeds to find the best setting for the specific subject and lighting conditions.
To capture a clear and detailed photo of the moon, use a telephoto lens with a focal length of at least 200mm, set your camera to manual mode, use a low ISO (around 100-200), a fast shutter speed (around 1/125 or faster), and a narrow aperture (around f/8 to f/11). Additionally, use a tripod to minimize camera shake and consider using a remote shutter release or the camera's self-timer to reduce vibrations.
Any Camera can be used in the dark with a flash, however if your wish to take a picture without a flash many things come into play. First you need a camera that you can set the ISO speed, Aperture, and Shutter Speed. This is best with a digital SRL Camera. Depending on the lighting set the Aperture at the larges opening wich will be the lowest f number. Set the ISO at the highest setting (1600 or higher if available). and I like to start with a shutter speed of 1/100. Then play with the setting depending on conditions. When shooting at the high ISO speed your picture may get "noise" undeveloped points. It takes alot of practice to get the right settings. I prefer on my camera to set it on shutter priorty TV and let the camera set the aparature size. But i still start with at least a ISO setting of 800.
To capture detailed shots of the moon with a DSLR camera, it is recommended to use a telephoto lens with a focal length of at least 200mm, set the aperture to around f/8 to f/11, use a low ISO of around 100 to 400, and a fast shutter speed of around 1/125 to 1/250 to prevent motion blur. Additionally, using a tripod and remote shutter release can help stabilize the camera and reduce camera shake.
Blurred images can be caused by: * Camera shake * Poor focus * Dirty lenses or filters * Shooting through windows * Moving objects in the image The most common cause is poor focus. This can be caused by not allowing the camera to autofocus before taking the photo, or by manually focusing the camera when wearing corrective lenses (or not wearing them). Another common cause of poor focus can be the camera focusing on something besides the subject. To avoid these problems, take pictures in as much light as possible, and get in close.
Shutter speed controls how long the sensor/film is exposed. Shorter shutter speeds normally provide a sharper image. Longer shutter speeds give you more blur. If you're hand holding your camera a good rule to go by is to multiply you focal length by two and use that as your shutter speed. For example, if your focal length is 100mm--your shutter speed should be 1/200sec or faster.
To capture clear and detailed images of the moon, it is recommended to use a telephoto lens with a focal length of at least 200mm, set the aperture to around f/8 to f/11, use a low ISO setting (around 100-400), and a fast shutter speed (around 1/125 to 1/250). Additionally, using a tripod and remote shutter release can help reduce camera shake and ensure sharp images.
== == You don't say what kind of camera, so here's a few guesses. Based on your comment, there cannot be anything wrong with the lens. Perhaps you need eyeglasses (or updated vision correction) or a diopter for your view finder, or the viewing system of your camera needs cleaning. These would explain why things look blurry while viewing, but turn out OK. Did you drop the camera recently? If this is a single-lens reflex something in the viewing system--either the focusing screen or the mirror--could have gotten knocked out of alignment.
F22 - All the lenses I have for my 35mm camera have an F22 setting, this lets the least amount of light through the lens.