Reflecting telescopes don’t suffer from chromatic aberration, nor vignetting. Because of their simple design, mirrors are easier to produce hence a far lower price for the same characteristics with refracting telescopes. Reflecting telescope – uses several mirrors to form an image. If you would like to use them for visual observing the eyepiece is in an awkward position, low to the ground. Longer focal length APO types can be quite expensive and because of more lenses used, they tend to be heavier.For better image quality with less optical distortions, there are apochromatic telescopes (APO) that are consisted of several concave and convex lenses.Low and mid-range lenses suffer from chromatic aberration, vignetting, and other not wanted optical distortions. There are no ‘crosses’ (diffraction spikes) on the brightest stars because there is no spider to hold the secondary mirror.Refracting telescopes don’t have a secondary mirror to block some of the light. These telescopes are better for wider fields of view, something like a telephoto lens.Refracting telescope– uses various lenses to form an image. There are three main different types of astrophotography telescopes: My advice is to go slow on these because if you change any part of your equipment, most of them will become obsolete. In astrophotography, accessories are inevitable, form headlamp to bahtinov mask, from autoguider for the mount to various optical filters if needed. As far as accessories go, it might be a never-ending story.After you choose your favorite applications for stacking and pre-processing… soon enough, you’ll probably need to pick the right astrophotography image editing software, because Photoshop just won’t do it.Much later, you’ll probably need to switch to dedicated CMOS or CCD camera in order to have control of more options and obtain better images with less time spent capturing them. In the beginning, you’ll probably use your nice DSLR camera and it will get the job done for sure. The better telescope you have, the more precise the setup of your mount must be. The motorized mount will serve you well if you get to know how to use it and set it up as precisely as possible.When you buy your scope, you must know its limitations and the most important thing to know is what it is best for, so you should use it for what it’s made for. The telescope is important for light gathering and getting clear, focused images. Later you’ll buy all kinds of gadgets and accessories. In order to have a basic setup for astrophotography, in general, you’ll need three things, a telescope, a motorized mount, and a digital camera.
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |