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I'm a first class moron....
I set up my new intervalometer on my Nikon, I set up my T-scope, I polar aligned, I put on the Bahtinov mask and got good focus, I set up the computer, I got a good point on Andromeda. I pushed the button and the intervalometer started doing its thing, I went inside a poured a whiskey. I went back out after an hour of imaging 60x60s. I went to put the main tube aperture cover on only to find that the Bahtinov mask was still sitting on the lens.... That's it - I quit for the night!!! |
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I'm a first class moron.... I set up my new intervalometer on my Nikon, I set up my T-scope, I polar aligned, I put on the Bahtinov mask and got good focus, I set up the computer, I got a good point on Andromeda. I pushed the button and the intervalometer started doing its thing, I went inside a poured a whiskey. I went back out after an hour of imaging 60x60s. I went to put the main tube aperture cover on only to find that the Bahtinov mask was still sitting on the lens.... That's it - I quit for the night!!! View Quote I heard a few stories about people leaving the filters on during the eclipse totality period as well, so these things happen. Give it a try next time. |
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Alright Im done playing around for the weekend. This'll have to do for now! I didnt align this. I was going by the 500 rule, but I think thats too long of an exposure. Too much star streaking. The light pollution was a bitch to deal with! https://i.imgur.com/esPq4iS.jpg View Quote 50mm lens on a 1.5x camera like a Nikon would be calculated as a 75mm lens. Canon cameras use 1.6x but the math works on similar lines. 50mm - 10 seconds according to the 500 rule 75mm(1.5x crop) - 6.667 seconds according to the 500 rule. Big difference. 24mm - 20.8 (let's call it 21) 36mm(1.5x crop) - 13.8 (let's call it 14) Again, big difference. |
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Make sure you figure in the crop factor of your camera if you're not using a full frame. 50mm lens on a 1.5x camera like a Nikon would be calculated as a 75mm lens. Canon cameras use 1.6x but the math works on similar lines. 50mm - 10 seconds according to the 500 rule 75mm(1.5x crop) - 6.667 seconds according to the 500 rule. Big difference. 24mm - 20.8 (let's call it 21) 36mm(1.5x crop) - 13.8 (let's call it 14) Again, big difference. View Quote View All Quotes View All Quotes Quoted:
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Alright Im done playing around for the weekend. This'll have to do for now! I didnt align this. I was going by the 500 rule, but I think thats too long of an exposure. Too much star streaking. The light pollution was a bitch to deal with! https://i.imgur.com/esPq4iS.jpg 50mm lens on a 1.5x camera like a Nikon would be calculated as a 75mm lens. Canon cameras use 1.6x but the math works on similar lines. 50mm - 10 seconds according to the 500 rule 75mm(1.5x crop) - 6.667 seconds according to the 500 rule. Big difference. 24mm - 20.8 (let's call it 21) 36mm(1.5x crop) - 13.8 (let's call it 14) Again, big difference. . |
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I'm a first class moron.... I set up my new intervalometer on my Nikon, I set up my T-scope, I polar aligned, I put on the Bahtinov mask and got good focus, I set up the computer, I got a good point on Andromeda. I pushed the button and the intervalometer started doing its thing, I went inside a poured a whiskey. I went back out after an hour of imaging 60x60s. I went to put the main tube aperture cover on only to find that the Bahtinov mask was still sitting on the lens.... That's it - I quit for the night!!! View Quote I got the target in view but didnt double check focus, which had moved slightly while the telescope was slewing. 3 hours of blurry shots. Its funny now, its all part of fumbling around in the dark |
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Its not a waste if you learned something View Quote View All Quotes View All Quotes Quoted:
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I was using 20 secs which is about right for my lens. Wasted a night trying 30. . . |
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Well, I gave up on my POS 80mm 910mm FL guide scope fpr auto-guiding, I'm ordering a 60mm 240mm FL guide scope tomorrow.
But, I did get the T-ring in for my Nikon D90 so I set up again tonight and tried another shot at Andromeda (even though my 9.25 SCT isn't the scope for it). I took 120 30 second shots that were tracked but unguided, DeepSkyStacker decided that only 30 of them were good enough to use (yeah, I took the mask off...). I think once I get my auto-guiding up and running things will get considerably better. Here's what I ended up with tonight - I'm still learning, DSO photography is a hell of a lot different than anything else I've ever done... I didn't take any "flats" and I was using a f6.3 reducer so I think I lost a lot outside of the middle (but then at a FL of 1481mm no way is Andromeda gonna fit in the picture anyway...). M31 Andromeda Galaxy as well as the smaller M32 satellite galaxy to the left: Attached File |
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Check the Dark Sky website. The darkest area closest to me is about an hour west of Wickenburg. ETA - This was for DBMERS
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This evening, I bring you...
The ISS transiting the Sun! This is not a particularly good shot; tripod-mounted camera at 600mm, at continuous high framerate, resulted in quite a bit of camera shake (even with VR turned on). I just didn;t trust myself to get that "one shot" with mirror-up; total transit time was 1.63 seconds. I think next time I might just try to shoot video and grab frames, have to look into the FPS and resolution for video with the D500. But, pretty cool nonetheless! ISS Solar Transit 20171024 Stack_Edit by FredMan, on Flickr ISS Solar Transit Map 20171024 by FredMan, on Flickr |
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This evening, I bring you... The ISS transiting the Sun! This is not a particularly good shot; tripod-mounted camera at 600mm, at continuous high framerate, resulted in quite a bit of camera shake (even with VR turned on). I just didn;t trust myself to get that "one shot" with mirror-up; total transit time was 1.63 seconds. I think next time I might just try to shoot video and grab frames, have to look into the FPS and resolution for video with the D500. But, pretty cool nonetheless! https://farm5.staticflickr.com/4484/37862337226_531fe1a99b_h.jpgISS Solar Transit 20171024 Stack_Edit by FredMan, on Flickr https://farm5.staticflickr.com/4456/24059130708_80dbf6736b_h.jpgISS Solar Transit Map 20171024 by FredMan, on Flickr View Quote It's great when a plan comes together... |
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I'll add that I'm in central Virginia and the ISS was passing over southwestern Arkansas when the transit occurred.
So, the ISS was about 1,000 miles away, moving at about 17,500 miles an hour in one plane, the earth was rotating on it's axis in another plane at about 1,000 miles an hour; the Earth was revolving around the Sun at about 67,000 miles an hour, and the Sun was orbiting the galactic core at about 486,000 miles an hour. Not that either the Earth's of Sun's orbital speed had much to do with ISS transits, but just a reminder that everything in the heavens is moving along at breakneck speed. |
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This evening, I bring you... The ISS transiting the Sun! This is not a particularly good shot; tripod-mounted camera at 600mm, at continuous high framerate, resulted in quite a bit of camera shake (even with VR turned on). I just didn;t trust myself to get that "one shot" with mirror-up; total transit time was 1.63 seconds. I think next time I might just try to shoot video and grab frames, have to look into the FPS and resolution for video with the D500. But, pretty cool nonetheless! https://farm5.staticflickr.com/4484/37862337226_531fe1a99b_h.jpgISS Solar Transit 20171024 Stack_Edit by FredMan, on Flickr https://farm5.staticflickr.com/4456/24059130708_80dbf6736b_h.jpgISS Solar Transit Map 20171024 by FredMan, on Flickr View Quote |
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I'll add that I'm in central Virginia and the ISS was passing over southwestern Arkansas when the transit occurred. So, the ISS was about 1,000 miles away, moving at about 17,500 miles an hour in one plane, the earth was rotating on it's axis in another plane at about 1,000 miles an hour; the Earth was revolving around the Sun at about 67,000 miles an hour, and the Sun was orbiting the galactic core at about 486,000 miles an hour. Not that either the Earth's of Sun's orbital speed had much to do with ISS transits, but just a reminder that everything in the heavens is moving along at breakneck speed. View Quote I am going to go out tonight, if I can stay awake.. betting there wont be much to see but conditions are favorable. |
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What a load of hogwash, all that shit gyrates around me! I am going to go out tonight, if I can stay awake.. betting there wont be much to see but conditions are favorable. View Quote Last time I saw a clear night sky was when I did those moon pics what, almost 2 weeks ago now? |
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What a load of hogwash, all that shit gyrates around me! I am going to go out tonight, if I can stay awake.. betting there wont be much to see but conditions are favorable. View Quote Cant wait to see what you come up with |
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Send me some of those favorable conditions please. Last time I saw a clear night sky was when I did those moon pics what, almost 2 weeks ago now? View Quote We're coming up on our cloudy time of year here, last winter I was only getting one clear night a month |
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Do you get a "clear" season? I'd go nuts without clear skies. We're coming up on our cloudy time of year here, last winter I was only getting one clear night a month View Quote |
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It's almost always clear every night here at 5400 feet in Prescott AZ.
But I've been out for the last three nights until two in the morning. I'm not setting up tonight, I'm gonna try to get some sleep... |
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It's almost always clear every night here at 5400 feet in Prescott AZ. But I've been out for the last three nights until two in the morning. I'm not setting up tonight, I'm gonna try to get some sleep... View Quote I don't want to drive ugh... In May the wife has some thing in Reno, I'm gonna head up the the black rock and veg out while the camera works ? |
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Made it to the "astronomy park" and got aligned and focused. She's churning now, maybe I can sneak in a nap. So much light pollution here.
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So I sacked out after stacking, managed to make it to 0710 before my bladder insisted I get out of bed. Here's 40 ish minutes of refinement in PixInsight (like I have the slightest clue what I am doing lol)
102517_ABE by sseagle, on Flickr |
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So I sacked out after stacking, managed to make it to 0710 before my bladder insisted I get out of bed. Here's 40 ish minutes of refinement in PixInsight (like I have the slightest clue what I am doing lol) https://farm5.staticflickr.com/4497/24095070618_923d180b0c_o.jpg102517_ABE by sseagle, on Flickr View Quote |
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I will do both sir, but my computer is running a ram check, cause I'm made of money so it's ok when everything breaks
Eta that bright bitch of a star is Vega |
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https://farm5.staticflickr.com/4452/24103373068_67b773178b_h.jpgMoon 20171026 by FredMan, on Flickr View Quote And here I am cursing the moon because it washes out the fainter nebula/galaxies when I shoot LRGB. |
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https://farm5.staticflickr.com/4452/24103373068_67b773178b_h.jpgMoon 20171026 by FredMan, on Flickr View Quote Stupid clouds. |
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@Ciraxis
Uploading the TIFF.. its 223MB, I think I should upload it 87 times? BRB https://www.dropbox.com/s/wi982657tsw60o7/Autosave.tif?dl=0 |
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Dang, that picture was in the wrong thread. So here's a save; going back though some of my eclipse photos. This was a 5 minute interval with the D200 at 24mm. Clouds certainly didn't cooperate with the interval, at least my manual shots managed to catch our closest to totality.
5-minute Interval by FredMan, on Flickr And while this one is posted in the eclipse thread, thought it might also go well here. Eclipse 600mm Full Sequence-9 Frames Resize_ by FredMan, on Flickr |
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Uploading the TIFF.. its 223MB, I think I should upload it 87 times? BRB https://www.dropbox.com/s/wi982657tsw60o7/Autosave.tif?dl=0 View Quote I messed around with it today. There were some gradients I had to try and get rid of but over all its a fine image, pretty must every astro shot ends up having gradients in it, which is why everyone takes flats and spends so much time processing. Attached File You picked up the ring nebula and I think M35(I could be wrong on that number) which is a globular cluster. What lens did you use? I'd be interested to see what you could come up with pointed at Cygnus or Cassiopeia because the milkyway cuts right through them. |
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Dang, that picture was in the wrong thread. So here's a save; going back though some of my eclipse photos. This was a 5 minute interval with the D200 at 24mm. Clouds certainly didn't cooperate with the interval, at least my manual shots managed to catch our closest to totality. https://farm5.staticflickr.com/4466/37957880502_a82b90bdf6_h.jpg5-minute Interval by FredMan, on Flickr And while this one is posted in the eclipse thread, thought it might also go well here. https://farm5.staticflickr.com/4348/35906225754_0f98cb9fa3_h.jpgEclipse 600mm Full Sequence-9 Frames Resize_ by FredMan, on Flickr View Quote |
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@sseagle I messed around with it today. There were some gradients I had to try and get rid of but over all its a fine image, pretty must every astro shot ends up having gradients in it, which is why everyone takes flats and spends so much time processing. https://www.AR15.Com/media/mediaFiles/184584/Untitled-347205.JPG You picked up the ring nebula and I think M35(I could be wrong on that number) which is a globular cluster. What lens did you use? I'd be interested to see what you could come up with pointed at Cygnus or Cassiopeia because the milkyway cuts right through them. View Quote When I went to 10 hour days I was excited because I could go out more... well I get up at 0430 and head to work for 10, and then I'm worn out before dark.. going to figure out a napping system eventually? |
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This was just shitting around cause it was clear and I'm tired of procrastinating. This was a 50mm at 2.8 pointed at the one star I could make out clearly... my eyes are fucked or there was a haze layer due to the humidity and temp.. I should have driven to my spot further out. When I went to 10 hour days I was excited because I could go out more... well I get up at 0430 and head to work for 10, and then I'm worn out before dark.. going to figure out a napping system eventually? View Quote |
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The hardest thing for me is feeling good enough to stay up. I can't be dead tired at my job, so I haven't been getting out as much. One good thing about winter is that when the clear nights happen at least I can start shooting at 6pm View Quote I reran it with darks bias and flats... I'm gonna reupload it and see if its any different, looks pretty much the same to me, and I probably did something wrong https://www.dropbox.com/s/w0imiyhqabppo4c/Autosave001.tif?dl=0 |
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Some clouds moved in from the west, so I packed up and left. Kind of wish I had stayed a bit longer because the cloud movement looked pretty neat in the rolling video timelapse. Oh well. Oh, and work tomorrow. That, too. The color version with the star trails is a bit of a mess with the aircraft moving through. Starting closer to midnight helps mitigate that, but with the weather and position of the moon, that just wasn't in the cards tonight. https://www.ar15.com/media/mediaFiles/203937/Ravens_Roost_C_-_1024-349973.jpg https://www.ar15.com/media/mediaFiles/203937/_DSC6050BW2_-_1024-349974.jpg View Quote |
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You guys are doing an awesome job. Especially Fredman. It gives me some ideas I want to try.
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You guys are doing an awesome job. Especially Fredman. It gives me some ideas I want to try. View Quote I certainly didn't start out as an astrophotographer, and certainly don't have any "astro" gear. What I do have is way long glass, way short glass, a home in the middle of a hayfield out in the sticks, and time. And incentive from this forum and thread to see what cool stuff I can come up with. |
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30 second exposure. From my ISS transit shooting location.
Big Island Night Over Kona by FredMan, on Flickr |
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My current project now that clear skies are here, if only for two days. The Soul Nebula, also know by its other super sexy name IC 1848
This is 2.5 hours of Hydrogen Alpha, hopefully I can crank out OIII and SII tonight to create a hubble palette image. Attached File I've been fighting with my dark, bias and flat frames, they do not want to calibrate properly, I know its entirely on my end but its fucking frustrating. |
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My current project now that clear skies are here, if only for two days. The Soul Nebula, also know by its other super sexy name IC 1848 This is 2.5 hours of Hydrogen Alpha, hopefully I can crank out OIII and SII tonight to create a hubble palette image. https://www.AR15.Com/media/mediaFiles/184584/SoulHA-356679.JPG I've been fighting with my dark, bias and flat frames, they do not want to calibrate properly, I know its entirely on my end but its fucking frustrating. View Quote How long were the subs for that 2.5 hours? |
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