In my last trips in the world of Astrophotography and after many tests I did. I decided to share some tricks to photograph space without telescope because many of us cant offer expensive astronomy equipment. furthermore, I will explaining how to Stack images using Deep Sky Stacker .
The most important thing in astrophotography is, High ISO 1600 +, Aperture 2.8 or less, long exposure for sure ! 30sec or more.
How are we going to manage the picture without the star trails???
We dont need to worry about it There is a trick that we can easily manage the right exposure without star trails by dividing the number 600 by the focal length we are using. Example, we are using 50mm lens. So, we divided 600/50mm = 12 second is the right exposure !.
How can we deal with the NOISE in the image??
The answer is simple, we stack the images using Deep Sky Stacker .
How do we photograph?
To end up with a great results we must use Light frames, Dark frames, Bias frames, Flat frames.
1- light frame: is the light frame? lol. joking, The light frame is the actual photograph of the object. Don’t worry there will be an example.
2- Dark Frame: Dark frames are the frames taken with the same settings as the light frame, but using the lens cap in front of the lens which means the image will be completely dark, and YES we need it dark ! The Dark frame purpose is to reduce the noise in the image.
3-Bias Frame: is almost the same, but the only thing is the shutter speed must be 1/4000 per sec.
4- Flat Frame: is the frame that detects dust and hair etc.. and subtract them from the main image. The settings doesn’t have to be the same as the main frame.
we will start with the light frames
In conclusion, whenever we add more frames the outcome quality will be better. In this image I used a Celestron 8″ Telescope piggy backed Canon 50D with 70-200mm F/4 IS USM, 18 Light Frames@ 70sec iso 3200 , 18 Dark Frames, 18 Bias Frames, 18 Flat Frames.
For further info you can contact me on Muneeb@MuneebMohamed.com