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Everything posted by peroni
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I love it! Been thinking about a pier for a while now and this option has been on my list. Great write up that I will follow and copy without shame
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From the album: HEQ5 and Atik 460ex
Narrowband, Ha only each frame is 20 mins exposure at -10 degs 41 x Ha -
From the album: HEQ5 and Atik 460ex
My first CCD image My first narrowband image Hubble pallet using Ha, OIII, and SII filters each frame is 20 mins exposure at -10 degs 10 x Ha 14 x OIII 16 x SII -
From the album: HEQ5 & ED80 Pro
210 x 1/1250secs subs through trees 100 x darks 100 x bias -
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This looks like a pretty neat idea. I'll be interested to monitor the progress you make Do you have any thoughts on how the two parts would be joined together after cutting? Hinges to flip the top over? Or a gutter/channel so top sits nicely on the bottom part. You'll want to keep the rain out.
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I use a straight forward tube with my lens, scope, and finder guider. This will allow you to adjust the length of the dew shield by sliding up and down the scope/lens should you start to see vignetting. Obviously for a scope as it is fixed focal length it's easier to determine the length of dew shield. For the lens, a bit more trial and error. If you open the lens to a short focal length then a shorter dew shield is required. Not sure if the benefits of shield would be lost at say 18mm FL My vote says try the tube first. If it doesn't work. Go down the more complicated cone route.
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I think the rule of thumb is to extend the dew shield by 2 x aperture, adding a bit to fix to the end of the scope / lens. I made mine to be 3 x aperture and all is ok
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I have the camping mat as well but joined mine by taking some wool and a large needle to sew up the join. Works a treat and is nice and snug. For my finder guider I grabbed a neoprene beer mit and cut the bottom off.
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From the album: HEQ5 & ED80 Pro
same dataset as other image: 8 x 180s lights 10 x darks 15 x bias 20 x flats A different processing attempt with more stretching and saturation applied. -
From the album: HEQ5 & ED80 Pro
8 x 180s lights 10 x darks 15 x bias 20 x flats -
From the album: HEQ5 & ED80 Pro
ISO800 10 x 5 mins exposure with flats and bias added no darks available for stacking -
From the album: HEQ5 & ED80 Pro
248 shots, various exposures in lots of 30 at ISO100 cropped using PIPP stacked using Registax 5.1 (finally) -
From the album: HEQ5 & ED80 Pro
Same shot as before, taken on 1 Jan 2013. Added flats now I have some and reprocessed. 48 lights, 20 dark, 30 flat, 20 bias -
From the album: HEQ5 & ED80 Pro
I took my first M81 / M82 photos on Saturday 2nd Feb 2013. unguided, 120 x 1 min exposures at ISO 800, stacked in DSS and processed in Photoshop -
From the album: HEQ5 & ED80 Pro
Same photo as before but I've practised my processing and used Noel Carboni's actions to help. -
From the album: HEQ5 & ED80 Pro
Taken 1 Jan 2013 40 x 60s subs at ISO800 20 x darks 20 x bias I haven't got any lights to add at present -
From the album: HEQ5 & ED80 Pro
Taken 1 Jan 2013 My first pics using the new scope. I had to wait 3 weeks for clear skies :-( 40 x 60s subs at ISO800 20 x darks 20 x bias I haven't got any lights to add at present -
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From the album: Fixed Tripod
Taken 1st Feb 2012. The 'bucket end' of the plough. Dubhe yellow, M108 red. You'll have to really zoom in to see M108 but it is there. -
From the album: Fixed Tripod
Taken 4th Sept 2011. I have revisited the post processing in Photoshop and stacking in DSS with flats, darks, and biases. -
From the album: Fixed Tripod
Taken 7th Sept 2012. Milk Way shot on a very clear night. Albireo is the bright star by red pointer. I also have the Dumbell Nebula by the yellow pointer -
From the album: Fixed Tripod
Taken 2nd Sept 2012. This is giving me the astro bug. I noticed after processing that you can start to see the North American nebula in this shot. Again 26 x 10secs subs, stacked and edited. Used f1.8 50mm lens