What a transit that was! I could only see it between 8:16 (when it started) til around 11am. I managed to get just under 80 photos now I would like to photoshop some!
I have been playing around with Photoshop but I wanted to ask on here if anyone has properly done any photos from the transit? The most I have done is put an orange/yellow filter on the image (because of my solar filter the sun comes out white). Could anyone share or give me some advice on improving some images?
I also would like to have one image showing all the positions of Venus, I do have Registax but have no idea how to use it properly (the tutorials on youtube arnt too helpful either).
The most I have done is put an orange/yellow filter on the image (because of my solar filter the sun comes out white). Could anyone share or give me some advice on improving some images?
White light solar images usually have lots of granulation detail - but the detail is all bunched up in the highlights. Try playing around with the curves to see if you can bring out the granulation and sunspot detail, without over-darkening the limb or blowing the highlights.
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I also would like to have one image showing all the positions of Venus, I do have Registax but have no idea how to use it properly (the tutorials on youtube arnt too helpful either).
Recent versions of Photoshop have an auto-align function (I've never used it), but I believe you can get Registax to output each frame post-alignment (again I've never used it). Once you have a sequence of frames properly aligned, you can add them as layers to the same image and choose a "darken" blending mode.
Location: '34 South' Young Hilltops LGA, Australia
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Hi Stefan. What do you register on to stack?
Did you track with eq or alt-az? If altaz then the positions of Venus will have a curved locus due to the earth's rotation. No auto alignment I know can do this for you.
Cheers
Joe
If you take a natural light photo of the sun, you will find that it is actually white Some solar filter and eclipse glass makers add a yellow or orange tinge to falsely represent the 'perceived' colour. We only ever see the sun when it is near the horizon, and those glorious sunsets have much more to do with atmospheric refraction than the real colour of the sun.
BTW, not much yellow in the moon, and guess where that light is coming from indirectly!
Hi Stefan. What do you register on to stack?
Did you track with eq or alt-az? If altaz then the positions of Venus will have a curved locus due to the earth's rotation. No auto alignment I know can do this for you.
Cheers
Joe
I shot the entire event, I aligned two ways to get two ways of showing the path venus took. I shot dslr on tripod so one stack is basically aligned to the horizon and you see the arc path of venus.
The other stack I derotated, thankfully the sun was active and lots of interestin sunspots to help with alignment here and this got me the string of pearls straight line path of venus. I think i was the only person in the southern hemisphere to shoot the whole transit and contribute a full data set to a project in Germany to test alternate method of measuring the earth sun distance in a collaboration like Captain Cook was a part of in the last part of the transit cycle. Always regreted not making a hasty camera upgrade at the time, ended buying the camera i would have bought at the time, gave up on nikon releasing the camera i actually wanted.
Some solar filter and eclipse glass makers add a yellow or orange tinge to falsely represent the 'perceived' colour. We only ever see the sun when it is near the horizon, and those glorious sunsets have much more to do with atmospheric refraction than the real colour of the sun.
