Jump to content

Banner.jpg.b89429c566825f6ab32bcafbada449c9.jpg

Sun's Photosphere 1st July 2014

Davide Simonetti

By Davide Simonetti
in Imaging - Solar

Recommended Posts

Davide Simonetti

Davide Simonetti

Posted
  • Author
Posted

Hi Dubhar,

I took this picture with my Canon 400D SLR (not ideal for astrophotography as there is no live view) mounted on my Celestron 127 NexStar SLT. I used the Solar System alignment function on the Goto as obviously there were no other celestial objects to align with. The exposure was 250th of a second at ISO 400. I used a solar filter over the front of the scope made with Baader Solar film and also a 46% orange filter in an empty Barlow tube to get a more pleasing colour than the white you get with Baader film. I also attached a right angle viewfinder to my camera to make the focusing a little easier. I find focusing on the Sun tricky so I focused the scope on the furthest away building I could find before putting on the solar filter. Then, with the filter firmly in place, I pointed the scope at the sun and looked for the edge to fine-tune the focus. Once focus was achieved it was just a matter of taking shots using a remote control and playing with different exposures.

One problem I did have was keeping the Sun exactly in the frame because there is very little room on the top and bottom of the frame so I had to keep an eye on the tracking. I should at this point mention the obvious safety message - Never look at the Sun through a telescope without a proper solar filter. 

I hope that helps   :icon_biggrin:

Link to comment
Share on other sites
Dubhar

Dubhar

Posted
Posted

Hi Dubhar,

I took this picture with my Canon 400D SLR (not ideal for astrophotography as there is no live view) mounted on my Celestron 127 NexStar SLT. I used the Solar System alignment function on the Goto as obviously there were no other celestial objects to align with. The exposure was 250th of a second at ISO 400. I used a solar filter over the front of the scope made with Baader Solar film and also a 46% orange filter in an empty Barlow tube to get a more pleasing colour than the white you get with Baader film. I also attached a right angle viewfinder to my camera to make the focusing a little easier. I find focusing on the Sun tricky so I focused the scope on the furthest away building I could find before putting on the solar filter. Then, with the filter firmly in place, I pointed the scope at the sun and looked for the edge to fine-tune the focus. Once focus was achieved it was just a matter of taking shots using a remote control and playing with different exposures.

One problem I did have was keeping the Sun exactly in the frame because there is very little room on the top and bottom of the frame so I had to keep an eye on the tracking. I should at this point mention the obvious safety message - Never look at the Sun through a telescope without a proper solar filter. 

I hope that helps   :icon_biggrin:

Oh thanks, thats good to know. I know what you mean about the lack of a live view, i've just started to get into astrophotography a little with a canon 350D.

I actually just got a solar filter today as well and it didnt cloud over for a change :D got my first look at the sun up close. 

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.