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the lemming

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About the lemming

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    Star Forming
  1. Just seen a YouTube on a Newest 2-in-1 Star Tracker. However I'd appreciate any real world views or comments on this bit of kit. Cheers
  2. While randomly wantering through Youtubes of editing astrophotography, I just heard about ISO Invarience. I've never heard of this before. Of those that have heard of this, and understand it, does ISO Invarience do what it says on the tin? Can I shoot ISO 650 and then bump up to ISO 2000 in post production without suffering a noise penalty?
  3. This may sound like a daft question, but it has me stumped. During the day, taking shots I have various tools at my disposal, histogram, zebras and waveform. But at night, what should I be doing to get good exposure? Should I consider something like Expose To The Right? I only have one more good night of my holidays and I want to learn as much as I can before going home. Cheers
  4. I'm on holiday at the moment, somewhere top-secret and dark. I wish I've got a holiday let in Wiltshire which has an adjoining field and so little light polution that I can just about see Andromida by eye and definitely by binoculars. But it's a steep learning curve and I only have a couple of nights left of clear skys before home time. I have a 7.5mm f2 lens, camera (GH5) and tripod. With trial and error I think that I have worked out that I can use a 15 second or possibly 20 second maximum exposure with ISO 2000 to get pin-sharp stars. For Star Trails I have the shutter speed of 3 seconds at ISO 800. Is this about right or can I push things further? Is it better to use in-camera noise reduction or use my computer's processing power to do this for me? I'm experimenting with Starstax, Sequator and lightroom to reduce noise.
  5. I'm just off to bed after my night shift. Would spending a little bit more be worth getting one of these? https://www.amazon.co.uk/dp/B01LCHLDWS/ref=as_li_tl?ie=UTF8&linkCode=gs2&linkId=5ff732cb55f0f0185e1fc3577938d655&creativeASIN=B01LCHLDWS&tag=nebulaphotosu-21&creative=9325&camp=1789
  6. Would something like this from Amazon work with my phone? https://www.amazon.co.uk/dp/B0188KP6T8/ref=cm_sw_r_cp_apa_i_9cYvFb7VNXMMC
  7. I had a look at a YouTube on the Skyguider Pro last night. Cheers
  8. I've decided to shake off the dust from my Skywatcher Heritage 130p Dodson and take some photos. What would I need to adapt the telescope to capture images with a mobile phone? Could this telescope even be adapted to take images with a Panasonic GH5? And finally, is it even possible or worthwhile to find a way to make the telescope track the night sky while I take images? At the moment I don't have any suitable tripods for such a project.
  9. I have just learned about Star Trackers but I'm confused about the different varieties and what I would possibly need to take night time images. I would appreciate any advice on a Star Tracker that would fit to a Manfrotto tripod, a Panasonic GH5 with a 100-400mm lens. Cheers
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