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Kelian98

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About Kelian98

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    Vacuum

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    France
  1. Kelian98

    SW ED72 backfocus

    Thanks ! I also put a ZWO ASI 120MM-Mini and I wasn't able to achieve focus. I was at 60-65mm... No I know it needs to be 2x that !
  2. Okay, thanks for this very clear explanation. I will continue to use my Explore Scientific 2" CLS Filter for now.
  3. Yes I heard about the vignetting with 1,25" filters and the DSLR far away from the Filter Wheel. I will try to gather additionnal information and put a message if I manage to do it or if there is something wrong. Thanks the precision !
  4. Bill, what are the adaptors that you use ? In order to know the optical path length. Thank you !
  5. Ok thanks for your answer ! So I can eraise the idea of the Filter Wheel with that configuration.
  6. Hello everyone ! I was looking for solutions to put a filter wheel with my current equipment and I am a bit confused. I have a Nikon D3300 Astrodon Inside, a Astro Essentials T Ring for Nikon DSLR, the Skywatcher Evostar 72ED and the OVL Field Flattener (from the website First Light Optics). Do you know if I could focus correctly with this 1,25" filter wheel https://www.firstlightoptics.com/zwo-accessories/zwo-5-position-1-25inch-manual-filter-wheel.html placed between the scope (Evostar 72ED) and the OVL field flattener (like he does) ? I asked the customer service and they said that I need these adaptors (below), but they are not sure if I can do the focus or not. Does somebody know ? Their response: “This to get the wheel to a male T thread on the flattener side https://www.firstlightoptics.com/adapters/baader-t2-t2-inverter-ring.html then this to get the M48 thread needed to connect the flattener https://www.firstlightoptics.com/adapters/flo-m48-to-t2-adapter.html The flattener should separate into two parts if you need the shorten it ( the nosepiece will screw off) On the telescope side of the wheel fit a 2" nose piece to the wheel https://www.firstlightoptics.com/adapters/flo-2-inch-t-mount-camera-adapter.html“ So I made some sketch to better understand what it is about. Thanks !
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