Jump to content

Narrowband

Aussie Dave

Members
  • Posts

    1,016
  • Joined

  • Last visited

Everything posted by Aussie Dave

  1. Sorry for the confusion, the native focal length of the scope is 1000mm, with the 2x Barlow 2000mm. The resized image was at 200% using the Mitchell filter in RS6 😉 This is the first 6" short tube I've had and often wondered how they get a long focal length from a short tube. There is a metal barrel at the end of the secondary mirror pointing towards the primary which houses a lens. I'm wondering if I took that lens out if it would make it a 500mm scope. The only other thing would be the focus plane and if I could reach focus if I took the lens out. If it could focus it would be a nasty f/3.3 scope and with heaps of CA I'm sure 😁 just not sure if it's a 2x magnifying lens.
  2. Jupiter and Io and Saturn from the 2nd of August before clouds rolled in. The second Jupiter image was resized in RegiStax. Conditions average, Mandurah Western Australia. Captured in SharpCap, stacked in AutoStakkert 3, wavelets in RegiStax 6, edited in PaintDotNet. ZWO ASI224MC with 2x Barlow SkyWatcher 6" reflector short tube, fl 1000mm SkyWatcher EQ6 Pro
  3. The Southern Pinwheel Galaxy M83 from the 6th of April, Mandurah Western Australia, conditions poor. This was my 3rd attempt with the first two attempts being much worse than this. 198 x 30 seconds, ISO 1600, 24 darks. Stacked in Sequator, edited in PaintDotNet and Fitswork. Sony a5000 Antares 6" achro refractor SkyWatcher EQ6 Pro
  4. Omega Centauri NGC 5139, Centaurus globular cluster taken back in April with a Sony a5000 and Saxon 10" reflector on Skywatcher EQ6 Pro. Only 13 exposures, average seeing night.
  5. Very nice Alan. Looks like the 40D still performs well, I often see these for sale full spectrum. Is yours the full spectrum or IR mod?
  6. Nice Alan, as long as you get something for your efforts. I do like the star clusters especially the globs. Have only done a couple I think that turned out ok. I might post one just for giggles. I don't think my 10" primary mirror is a good one as my stars are always weird shapes. I thought you'd be in a prime location for M31 Dave. You're in the UK or around that neck of the woods? I'm being more selective now and only go for the higher targets.
  7. Cheers Dave, about 81 degrees for some months It's a nice easy one, I like easy one's. Thanks Alan, ain't all the good one this side of the rock?? 😀 Honestly though there's some good targets in the northern hemisphere where you are that we can't get and are too low. I would really like to get a chance at imaging Andromeda M31. That's at about 16 degrees north and in light pollution from along the coastline here. I can't even see it. Cheers Philip The lens looked nice, felt nice, build quality was great and looked good on my Sony a5000 mirrorless but it wasn't a star performer so I sold it. I'm slowly collecting a few nice prime lenses from the old 35mm film cameras. I love the old glass, there's just something about them that are so appealing.
  8. The Lagoon nebula taken early May this year with a Tamron BBAR Multi C 300mm f/5.6 telephoto lens stopped down to f/8 and Sony a5000 on EQ6 Pro mount. This is a re-edit and heavily cropped just to show the nebula and surrounding area. Captured in less than ideal conditions from Mandurah Western Australia. The stacked image with this lens showed blue doughnut rings around medium to bright stars and was difficult to get rid of, I did leave some around the neb and lightened them a tad. 95 x 30 seconds, ISO 1600, 50 darks. Stacked in Sequator, edited in PaintDotNet.
  9. I'm sure the planets could be moving northwards, they don't seem to be as high as last year.
  10. Well done Neil. I had a look at your first video and it's a good result for that type of seeing and at such a low altitude. For me in the south west of Western Australia and being near the coast, seeing for me is poor most of the time, however a planetary friend who lives about 70kms north from me and further inland away from the coast is getting very good seeing most nights now when there's no cloud. We have the luxury of waiting for Jupiter and Saturn to reach their highest and often don't start imaging if they are below about 65 degrees unless there's an early or late GRS or transit. Plus if seeing is bad, we often don't image at all. My last attempt 2 weeks ago wasn't so great and since this it's been nothing but cloudy nights and patchy rain. You're probably getting more clear nights now than us all the way down here 😄 This was with the Saxon 8" Mak and Meade Telenegative 2x Barlow, fl 5000, f/24.6, ASI224mc as a comparison. You should be able to get similar Neil with more stable seeing near their highest elevation.
  11. A couple of areas captured near each other with a heaps of varying features. Taken on the 11th of July from Mandurah Western Australia. Captured in SharpCap, stacked in AutoStakkert 3, wavelets in RegiStax 6, stitched in Image Composite Editor, edited in PaintDotNet and Fitswork. ZWO AS174MM Saxon 8" Maksutov SkyWatcher EQ6 Pro
  12. Centaurus A Galaxy NGC 5128 aka The Hamburger Galaxy captured on the 18th of March last year with an 83% illuminated moon, conditions average to poor from Mandurah Western Australia. This is my second attempt at this galaxy, this time with a 6" achro frac. The first attempt was terrible with my previously owned C8i on it's alt az mount. I did have some slight drift and getting good collimation seems to be elusive with this older refractor. It also gives bad blue rings around brighter stars which is very annoying and difficult to get rid of. I've only been doing DSO astrophotography seriously for about 18 months when the sky allows and I'm no expert at this DSO bizzo but content with my progression so far, I'm always learning new things and enjoying it immensely. 189 x 30 seconds, ISO 1600, 24 darks. Aligned and stacked in Sequator, edited in PaintDotNet and a rework tonight to tidy things up a little more in Fitswork. The second image is a 75% full res crop with less editing to try to bring out some central detail that's usually washed out. Sony a5000 Antares 6" achromatic reflector, fl 990mm, f/6.6 SkyWatcher EQ6 Pro
  13. Ha! funny you should mention that Scoot. I tried HDR for the first time on my Sony a5000 to try and get Earthshine but camera said No! I think it had something to do with the operator.
  14. Nice eclipse capture and Earthshine Hallingskies with the C4. I failed with the Earthshine.
  15. Unique photo Scooot, looks like a smoking moon 😀
  16. Nice moon photos Dave. I like the 3rd one the best.
  17. Around midnight I captued the 100% illuminated moon with a Saxon 10" Newtonian reflector and Sony a5000. Then from about 3am I started on the partial lunar eclipse with a Sigma 70-300mm f/4 - 5.6 zoom lens. I tried a different exposure technique setting on the a5000 called High Dynamic Range with Dynamic Range Optimizer which didn't work out so well. The moon was much lower in the sky and I should've tested these settings before hand but quite please I got what I did. I almost deleted all the eclipse photos as they didn't look that great at full res but it was a last minute decision to put a 4 shot sequence in the corners of the full moon shot. PIPP used to pre-process 24 full moon photos, AutoStakkert 3 to align and stack, wavelets in RegiStax 6, edited in PaintDotNet with a final tweak in Fitswork.
  18. From the album: Saxon M20325

    Saturn from the 11th of July. ZWO AS224MC, Saxon 8" Maksutov, SkyWatcher EQ6 Pro.
  19. From the album: Saxon M20325

    Crater Clavius and surrounding area from the 11th of July. ZWO AS174MM, Saxon 8" Maksutov, SkyWatcher EQ6 Pro.
  20. Crater Clavius, Crater Maginus the little Clavius (just below left of Clavius) plus some others from the 11th of July. Captured in SharpCap, stacked in AutoStakkert 3, wavelets in RegiStax 6, edited in PaintDotNet with a final tweak in Fitswork. ZWO AS174MM Saxon 8" Maksutov SkyWatcher EQ6 Pro Location Mandurah Western Australia.
  21. Celestron Neximage 5 Solar System Imager, Celestron Nexstar 8i SCT.
  22. Aussie Dave

    Celestron Nexstar 8i

    Celestron Nexstar 8i Schmidt-Cassegrain 203mm, fl 2032mm, f/10, Starbright coatings.
×
×
  • 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.