Hi Paul. Thanks for that :) Yep, I'm getting out now and again, when the weather allows. Just bought a Canon 500D and trying to get to grips with that. Extremely frustrating at times this stuff can be! :)
Excellent tutorial Doug. When clicking and moving the image to line up. My image needs rotating slightly as well to align. Is there an easy way to move the image freehand ?
Vince Hi Vince. Yes, there should be a rotate image option in the menus up top. Under 'Image: I think (I haven't got Ps open as I type this). You'll find you can rotate the image in either direction, as fine as one degree at a time if you need. You'll find you won't be able to match the full image exactly though, but if you're only interested in a small part of the image on the upper layer you should be ok, if you take a bit of care 😊 Hope that helps
Hi...great tutorial. Very new so I have a question. Why brighten the core to the point of blowing it out on the mask layer? Obviously there is something I'm missing. If you want the detail of the core in the shorter exposure why then blow it out in the mask? thanks.
Chuck Porter Hi Chuck. The core in the initial layer, the layer with the majority of the Nebula, is blown out by the exposure - it's over exposed, but you need to do that to get the fainter detail of the outer Nebula. As you stretch the image to reveal the fainter detail more of the core will "blow out" but it doesn't matter because you have the shorter exposure to layer it back in. Hope that makes sense. Pm me if not 😊
+Doug German I understand the need for a short exposure in a longer exposure to capture detail at the extreme ends of the range. However..... I guess I don't understand why you took the brightness slider and, essentially, blew out the core of that shorter exposure that you used to create the b&w mask. I mean you have the detail of the shorter exposure but then you blow it out when you create a mask, I don't understand that part.
Chuck Porter Ah. I see what you're getting at. It's not the second image that I'm stretching and blowing out there, it's the mask. The second image has already been processed pre video, as was the first. I don't touch either of the images in the vid, just the mask. The mask, as the name suggests, masks out the image where it's black and allows the image to show through where it's white. As I mention in the video, you don't need to copy and paste the image into the mask to achieve this effect, you can just use a black (inverted) mask and paint it white in the areas that you want to show through, in this case the core. Hope that helps 😊
Great stuff - very helpful. I had no idea how to work with PS and after this video I took a big step. I used the layers & mask technique to brighten the moons of Jupiter in a stacked image from last week. You made mention of another video you made related to layers and masks so I'm off to hunt for it now. Cheers mate!
Nice camera! Yes i know what u mean. 1 night will be good next nothin goes right. My 40th next wk so been saving and gonna get good webcam for deep sky. Take it easy regards paul
very helpful thank you just took some exposures of the orion nebula will do this to fix this exact problem
fantastic. got your vids on my favorites. hope your still getting out when its clear. regards paul stockport.
Thanks Doug, love your videos!!! Nice work!!
Hi Paul. Thanks for that :) Yep, I'm getting out now and again, when the weather allows. Just bought a Canon 500D and trying to get to grips with that. Extremely frustrating at times this stuff can be! :)
Excellent tutorial Doug. When clicking and moving the image to line up. My image needs rotating slightly as well to align. Is there an easy way to move the image freehand ?
Vince Hi Vince. Yes, there should be a rotate image option in the menus up top. Under 'Image: I think (I haven't got Ps open as I type this). You'll find you can rotate the image in either direction, as fine as one degree at a time if you need. You'll find you won't be able to match the full image exactly though, but if you're only interested in a small part of the image on the upper layer you should be ok, if you take a bit of care 😊 Hope that helps
Doug German thanks Doug.
Hi...great tutorial. Very new so I have a question. Why brighten the core to the point of blowing it out on the mask layer? Obviously there is something I'm missing. If you want the detail of the core in the shorter exposure why then blow it out in the mask? thanks.
Chuck Porter Hi Chuck. The core in the initial layer, the layer with the majority of the Nebula, is blown out by the exposure - it's over exposed, but you need to do that to get the fainter detail of the outer Nebula. As you stretch the image to reveal the fainter detail more of the core will "blow out" but it doesn't matter because you have the shorter exposure to layer it back in. Hope that makes sense. Pm me if not 😊
+Doug German
I understand the need for a short exposure in a longer exposure to capture detail at the extreme ends of the range. However.....
I guess I don't understand why you took the brightness slider and, essentially, blew out the core of that shorter exposure that you used to create the b&w mask. I mean you have the detail of the shorter exposure but then you blow it out when you create a mask, I don't understand that part.
Chuck Porter Can't remember this vid Chuck - long time ago 😊 I'll have a look and come back to you 😊
+Doug German
ok....thanks. My biggest learning curve in astrophotography so far as the post processing in Photoshop, so I appreciate it.
Chuck Porter Ah. I see what you're getting at. It's not the second image that I'm stretching and blowing out there, it's the mask. The second image has already been processed pre video, as was the first. I don't touch either of the images in the vid, just the mask. The mask, as the name suggests, masks out the image where it's black and allows the image to show through where it's white. As I mention in the video, you don't need to copy and paste the image into the mask to achieve this effect, you can just use a black (inverted) mask and paint it white in the areas that you want to show through, in this case the core. Hope that helps 😊
Great stuff - very helpful. I had no idea how to work with PS and after this video I took a big step. I used the layers & mask technique to brighten the moons of Jupiter in a stacked image from last week. You made mention of another video you made related to layers and masks so I'm off to hunt for it now. Cheers mate!
Thanks Sean :)
No probs :) Glad you like it
Nice camera! Yes i know what u mean. 1 night will be good next nothin goes right. My 40th next wk so been saving and gonna get good webcam for deep sky. Take it easy regards paul
i put this on twitter if you don mind good work
Cheers Jason :)
was the very first part of the image photographed with a CAMERA not a computer, I ask because photograph is very important
love it