Astrophotography
The big dark sky above us offers a whole universe of photographic opportunities to photography enthusiasts. Astrophotography is a special type of photography which involves taking pictures of objects in the space. With technological advances, it has become easy to take picture of astronomical objects.
The use of camera and methods involved in astrophotography are simple to capture the images of the night sky. Star-trail images look spectacular and this specific picture can be taken with longer exposures. For capturing night stars without trails, short exposures with wide-angle lens can be used. Advanced astroimaging requires higher magnification and that is where telescopes and mounts are used.
The cameras used also vary as the standard cameras are not suitable for astrophotography. The cameras that can be used in astrophotography include digital SLR cameras, webcams, digital snapshot cameras and CCD cameras. The choice of astrophotography camera depends on the object one wishes to image. In order to click high quality night images and long time exposure shots, tripods are also essential. Focusing is also equally important in capturing the fine details of the night sky.
These days, night sky photography is quite easy with the help of digital cameras and high speed color films. This technique is known as piggyback photography. In this method, the camera is mounted on an astronomical telescope. The camera uses large focal length lens to capture the beautiful images of the night sky.
The astro images also need processing to remove the noise from long exposures. The images can also be adjusted with the help of image processing software to adjust the color and contrast of the image. There are several software packages available that are specifically for astronomical images.
Photographing the night sky requires technique and knowledge. The technique to capture the image and the knowledge of the equipments is essential in taking picture. For beginners, there is no need to buy an expensive camera or telescope to start shoot. One can always start from basics like shooting the moon and upgrade later.
