The crescent moon

Discussion in 'Photography Beginners' Forum' started by Grandpa Ron, Apr 9, 2019.

  1. Grandpa Ron

    Grandpa Ron No longer a newbie, moving up!

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    Luck and a cloudless clear night allowed me to try a shot at the crescent moon.

    My Canon T6 Rebel with it 55mm lens did not give very satisfactory results, even with the telephoto converter lens. However a lens adapter and my old 35mm Pentax 210mm zoom, was a great improvement. I do not recall the digital to 35 mm lens factor but I believe it is a bit over 300mm equivalent.

    I also discovered that no matter how carefully I push the shutter there was some camera shake. But, a 2 second shutter delay took care of that. The lens was manually focused, set to f22, 1/100th second, ISO 100, 2 second shutter delay.
    Cresant Moon.jpg


     
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  2. RonAlv

    RonAlv TPF Noob!

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    I tried the same thing last night. I put my camera on a tripod, set a 2 second delay, and triggered my camera through my smart phone. Sony Cameras has the ability to trigger the camera.

    [​IMG]
     
  3. RonAlv

    RonAlv TPF Noob!

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    OK, lets try this again.

    DSC01636.jpg
     
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  4. Grandpa Ron

    Grandpa Ron No longer a newbie, moving up!

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    Ron Alv,

    That is a really great shot. Using the phone to trigger the camera make it totally hands free.

    I am working on a camera/telescope adapter but I may just buy one. It should give me a bigger image to work with. I might even be able to chase the planets.
     
  5. Winona

    Winona No longer a newbie, moving up!

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    There is so much detail! Nice.
     
  6. TCampbell

    TCampbell Been spending a lot of time on here!

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    Focus is a little off -- and that's tough to see through the camera. I typically flip to "live view" mode which will let you magnify the view (it wont change the image the camera captures, but it lets you magnify part of the image) and this lets you refine the focus.

    The vibration issue is always tricky. I sometimes even use the 10-second timer instead of the 2-second timer. If the camera has "mirror-up" mode (first button press raises the mirror, second button press takes the exposure) it helps even more because you don't even get the vibration from the mirror-slap.
     
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  7. Grandpa Ron

    Grandpa Ron No longer a newbie, moving up!

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    Campbell,

    Yes you are correct even with live view getting a good focus is hard with bi-focals. :) It also did not help that the zoom lens from my Pentax is over 40 years old and has a small mold blotch on the edge. However, I think I will try the longer delay and the mirror up.

    We did have another clear night so I tried a half moon shot.

    Thanks for the tips I will try them on the next clear night.
     

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  8. RonAlv

    RonAlv TPF Noob!

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    This was shot with my Sigma (Bigma) 150-600mm |C lens. I did recently purchase a GH10 Professional Gimbal Head just for this lens, and what a difference it made for this massive lens.
     
  9. RonAlv

    RonAlv TPF Noob!

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    Shot this last week as well.

    [​IMG]
     
  10. Grandpa Ron

    Grandpa Ron No longer a newbie, moving up!

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    I did a half moon shot with my 300 mm lens a shown below.

    As pointed out, nothing beats big glass for this kind of photography, so I cleaned up my old telescope and ordered a camera to scope mount. We will see what improvement that will make.
     

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  11. TCampbell

    TCampbell Been spending a lot of time on here!

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    Depending on the scope this might make things either much easier ... or much harder. What type of scope do you have and what is the focal length?
     
  12. Grandpa Ron

    Grandpa Ron No longer a newbie, moving up!

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    I have two telescopes. The first is a typical beginners refractor with a 60 mm lens and 700 mm focal length. I can use it as a prime focus lens. The adapter will also allow you to view through an eye piece also. I prefer prime focus. But I have only shot landscapes and it had been cloudy here.

    The second is a homemade Dobson/Newtonian with a 6 inch mirror shown below. It has a focal length of 48 " (about 1200 mm). I have not tried it yet. The Dobson's are supposed to need and extension tube or Barlow to focus. I am not sure am ready to tackle that long a lens yet.

    You really do not need a "light bucket" to capture the moon.
     

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