- published: 05 Mar 2013
- views: 4244
Afocal photography, also called afocal imaging or afocal projection is a method of photography where the camera with its lens attached is mounted over the eyepiece of another image forming system such as an optical telescope or optical microscope, with the camera lens taking the place of the human eye.
Afocal photography works with any system that can produce a virtual image of parallel light, for example telescopes and microscopes. Afocal photographic setups work because the imaging device’s eyepiece produces collimated light and with the camera's lens focused at infinity, creating an afocal system with no net convergence or divergence in the light path between the two devices. In this system the device is focused on the object and the camera is placed above the eyepiece as close as possible. The drawback is the system will have a high focal ratio, with a correspondingly dim image, and some vignetting. A high focal ratio also means the field of view will be narrow. Field of view can be calculated using:
Here I show you what you'll need to get started with afocal astrophotography.
The microscope adapter can be mounted on the phototube of the microscope. It is able to hold pocket-sized cameras in front of the eyepiece. I ordered the adapter from www.teleskop-express.de. Search for Digiklemme1 in Ebay to find it. They also have a larger version called Digiklemme2 for heavier cameras.
마분지와 못쓰는 CD나 DVD를 이용한 초간단 스마트 폰 어포컬 장치 (Extremely simple smartphone afocal adapter made with thick paper and used CD or DVD-ROM.)
This video demonstrates footage from our StarShoot All In One Astrophotography Camera; an all-in-one imaging solution for multiple types of astrophotography built around a 1/3" Color CMOS sensor with sensitive 3.75 micron by 3.75 micron pixels PRODUCT PAGES: For our US and Canadian customers - http://bit.ly/27xg5jj For our UK customers - http://bit.ly/1W1cbeN For our English-speaking EU customers - http://bit.ly/1qsgWAa Pour nos clients français - http://bit.ly/1rSCoj0 Für unsere deutschen Kunden - http://bit.ly/23WD42V Para nuestros clientes españoles - http://amzn.to/1qshnKE Per i nostri clienti italiani - http://amzn.to/1V8gHak The camera's ultra-fast frame rate of up to 200 frames per second (FPS) at the lowest resolution setting, and up to 30 FPS at the highest resolution se...
A look at the features of the Orion SteadyPix Telescope Afocal Adapter for iPhone which allows anyone with a telescope to take amazing astrophotos with their iPhone! For our US and Canadian customers - http://bit.ly/298nMGp For our UK customers - http://bit.ly/298nTlh For our English-speaking EU customers - http://bit.ly/29d2kBZ Pour nos clients français – http://bit.ly/294UOWx Für unsere deutschen Kunden - http://bit.ly/294UXt3 Para nuestros clientes españoles - http://amzn.to/290N3OR Per i nostri clienti italiani - http://amzn.to/294KbDS To be notified when new videos are added to our growing library of stargazer how-to videos, subscribe to the Orion channel! http://www.youtube.com/user/oriontelescopes/ Visit http://www.telescope.com to find high quality products for amateur as...
Check us out at http://www.facebook.com/EyeSkies This is an unboxing and review of the Orion SteadyPix Telescope Photo Adapter for iPhone. I highly recommend this product to anyone with a telescope that has an 1.25" eyepiece and is interested in Astrophotography. This product woks with iPhone 4S, 4, 3GS, 3G, for afocal Astrophotography and can also be mounted to a tripod for steady shooting of video and photos. Please leave your comments and recommendations. Make sure you Subscribe to our channel & Like this video. Also check us out and Like us on Facebook http://www.facebook.com/EyeSkies Also check out our blog: http://eyeskies.blogspot.com/ Product Page: http://www.telescope.com/New-Products/Orion-SteadyPix-Telescope-Photo-Adapter-for-iPhone/pc/0/c/0/sc/314/p/101445.uts
The first tutorial in the Ag is Beautiful series. This video goes over questions such as How do I create a focal point in a picture? How do I tell a story in picture? How can I use photography to promote my farm or ranch? by Scott Stebner www.scottstebner.com
As you are learning about Astrophotography, why not start with a simple setup? I have always enjoyed looking at our moon. It is also an easy target to take your first astro-photo. Here is my basic set-up and how I took my first pictures of the moon. Learning how to do it is half the fun but it sure helps when someone shows you a few things.
Here we take a look at what you'll need to attach your DSLR camera to a telescope.
Eclipses (The Night Sky: and Other Amazing Sights in Space) Paperback by Nick Hunter http://www.amazon.com/gp/product/143297520X?ie=UTF8&camp;=1789&creativeASIN;=143297520X&linkCode;=xm2&tag;=alvinwriter-20