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  1. #21
    Senior Member
    Moab Man's Avatar

    Re: Astrophotography gear?

    @hark

    I have no problem with you jumping in and do not take ANY offense. This is a learning community. The only time it bothers me is when intellectual learning conversation degrades into a pissing contest. So please, don't hold back.

    George


    › See More: Astrophotography gear?
    Thanks/Like hark, Yan Lauzon Thanks/liked this post
     
    D5100, D7100, D600, D750, Df
    Lenses: Nikon DX 18-55mm, 55-200mm, 55-300mm, Tamron SP 70-300mm F4-5.6 Di VC USD & 200-500mm
    Prime: Nikon 35mm, 50mm, & 85mm f/1.8G, 300mm f/4
    Wide Angle: Tokina AT-X116 Pro DX-II 11-16mm f/2.8, Rokinon f/2.8 14mm (chipped)
    Macro: Nikon 40mm, Tamron 90mm
    ​Flash: Nissin MARK II Di622
    Stuff: Expodisc Neutral & Portrait
    ​Editing: CS6, CC, Nik Tools, Portrait Pro 12, Topaz
    Spyder4Pro
    https://www.flickr.com/photos/122672034@N04/



  2. #22
    Senior Member
    Moab Man's Avatar

    Re: Astrophotography gear?

    @Yan Lauzon

    can you please explain to Yan as to why an f/2.8 lens is preferred over f/3.5? Since I've never taken any long exposures like these require, it would help him make an informed decision. If he chooses to go with some type of wide lens that isn't as fast as an f/2.8 lens, he will get an idea of what he is sacrificing. Thanks!
    The fastest glass you can afford is a two fold benefit. First, You're trying to collect light that is ever so faint. Add to it, DX sensors have more ISO noise than full frame so the more light you can get is a shorter exposure and less noise.

    Second, exposure time. The longer you have to have the shutter open the more star movement (star trails) you have. It is a fine balancing act between long enough to collect enough light, but not too long to get noticeable movement, and not having to crank up the ISO to create a noisy image. It's like a waiter carrying a very full tray on one hand. When it's all balanced out it works well. Get it wrong and it all crashed down.
    Thanks/Like hark, Yan Lauzon Thanks/liked this post
     
    D5100, D7100, D600, D750, Df
    Lenses: Nikon DX 18-55mm, 55-200mm, 55-300mm, Tamron SP 70-300mm F4-5.6 Di VC USD & 200-500mm
    Prime: Nikon 35mm, 50mm, & 85mm f/1.8G, 300mm f/4
    Wide Angle: Tokina AT-X116 Pro DX-II 11-16mm f/2.8, Rokinon f/2.8 14mm (chipped)
    Macro: Nikon 40mm, Tamron 90mm
    ​Flash: Nissin MARK II Di622
    Stuff: Expodisc Neutral & Portrait
    ​Editing: CS6, CC, Nik Tools, Portrait Pro 12, Topaz
    Spyder4Pro
    https://www.flickr.com/photos/122672034@N04/

  3. #23
    Senior Member
    Moab Man's Avatar

    Re: Astrophotography gear?

    Moon Photography
    Moon photography is often done poorly in that it's too often blown out. When shooting the moon you want to be exposing for the moon, spot exposure metering. If you meter for the moon and all of the black of the sky it will blow out the moon. You will be surprised at how fast your shutter speed is.

    When shooting the moon use your histogram to make sure you are not blowing it out.
    Thanks/Like hark, Yan Lauzon Thanks/liked this post
     
    D5100, D7100, D600, D750, Df
    Lenses: Nikon DX 18-55mm, 55-200mm, 55-300mm, Tamron SP 70-300mm F4-5.6 Di VC USD & 200-500mm
    Prime: Nikon 35mm, 50mm, & 85mm f/1.8G, 300mm f/4
    Wide Angle: Tokina AT-X116 Pro DX-II 11-16mm f/2.8, Rokinon f/2.8 14mm (chipped)
    Macro: Nikon 40mm, Tamron 90mm
    ​Flash: Nissin MARK II Di622
    Stuff: Expodisc Neutral & Portrait
    ​Editing: CS6, CC, Nik Tools, Portrait Pro 12, Topaz
    Spyder4Pro
    https://www.flickr.com/photos/122672034@N04/

  4. #24
    Senior Member
    Yan Lauzon's Avatar

    Re: Astrophotography gear?

    Quote Originally Posted by Moab Man View Post
    Moon Photography
    Moon photography is often done poorly in that it's too often blown out. When shooting the moon you want to be exposing for the moon, spot exposure metering. If you meter for the moon and all of the black of the sky it will blow out the moon. You will be surprised at how fast your shutter speed is.

    When shooting the moon use your histogram to make sure you are not blowing it out.
    I did a try at the moon with my kit 55-200mm and had difficulty focusing right. (to my defense, it was -35 and was freezing so I didn't try super long, plus cloud went in the way while I was setting up)



    I had issues getting bright enough, but not too bright. I realize I could have tried histogram to help this out, thanks for the idea, I'll try that as soon as I get a cloudless moon again.

    Here's one of the better shots. The moon lights too much on some area and trying to tone it down wasn't easy.

    Should we aim for large aperture, or small aperture? What would be the best approach?


    I figure I need at least 500mm to try and get where I want to, zoom-wise. There are mirror lens about that size, reminds me of Schmidt Casgrain telescope... Any good for moon pictures?
    Last edited by Yan Lauzon; 03-04-2018 at 11:49 PM.

  5. #25
    Senior Member
    Moab Man's Avatar

    Re: Astrophotography gear?

    What is the exif data on your moon photo. It doesn't look in focus and you're shooting through a cloud. You can use the edge of the moon to get focus.
    D5100, D7100, D600, D750, Df
    Lenses: Nikon DX 18-55mm, 55-200mm, 55-300mm, Tamron SP 70-300mm F4-5.6 Di VC USD & 200-500mm
    Prime: Nikon 35mm, 50mm, & 85mm f/1.8G, 300mm f/4
    Wide Angle: Tokina AT-X116 Pro DX-II 11-16mm f/2.8, Rokinon f/2.8 14mm (chipped)
    Macro: Nikon 40mm, Tamron 90mm
    ​Flash: Nissin MARK II Di622
    Stuff: Expodisc Neutral & Portrait
    ​Editing: CS6, CC, Nik Tools, Portrait Pro 12, Topaz
    Spyder4Pro
    https://www.flickr.com/photos/122672034@N04/

  6. #26
    Senior Member
    Yan Lauzon's Avatar

    Re: Astrophotography gear?

    Astrophotography gear?-20171202_204132_dsc_1242b_yl.jpg

    Here's another try. Is the exif visible now?

    I was trying to focus on the moon, didn't think to use the border. Good idea. I realize it's hard to focus to infinity with this lens, I'll have to give this a few more try to get better at it.

    Ideally without clouds next time. They spooked in while I was setting up.
    Last edited by Yan Lauzon; 03-05-2018 at 12:02 AM.

  7. #27
    Senior Member
    Moab Man's Avatar

    Re: Astrophotography gear?

    What was your shutter speed? Nikonites site garbled it.
    D5100, D7100, D600, D750, Df
    Lenses: Nikon DX 18-55mm, 55-200mm, 55-300mm, Tamron SP 70-300mm F4-5.6 Di VC USD & 200-500mm
    Prime: Nikon 35mm, 50mm, & 85mm f/1.8G, 300mm f/4
    Wide Angle: Tokina AT-X116 Pro DX-II 11-16mm f/2.8, Rokinon f/2.8 14mm (chipped)
    Macro: Nikon 40mm, Tamron 90mm
    ​Flash: Nissin MARK II Di622
    Stuff: Expodisc Neutral & Portrait
    ​Editing: CS6, CC, Nik Tools, Portrait Pro 12, Topaz
    Spyder4Pro
    https://www.flickr.com/photos/122672034@N04/

  8. #28
    Senior Member
    Yan Lauzon's Avatar

    Re: Astrophotography gear?

    Quote Originally Posted by Moab Man View Post
    What was your shutter speed? Nikonites site garbled it.
    1/13 sec, with -1.333 EV compensation

    f/5.6


    I also did some work from the raw file in viewNX

  9. #29
    Senior Member
    Moab Man's Avatar

    Re: Astrophotography gear?

    Next time set your camera at Shutter priority and your ISO to auto. Take a shot and see what it looks like. Your shutter speed was way to slow.
    Thanks/Like Yan Lauzon Thanks/liked this post
     
    D5100, D7100, D600, D750, Df
    Lenses: Nikon DX 18-55mm, 55-200mm, 55-300mm, Tamron SP 70-300mm F4-5.6 Di VC USD & 200-500mm
    Prime: Nikon 35mm, 50mm, & 85mm f/1.8G, 300mm f/4
    Wide Angle: Tokina AT-X116 Pro DX-II 11-16mm f/2.8, Rokinon f/2.8 14mm (chipped)
    Macro: Nikon 40mm, Tamron 90mm
    ​Flash: Nissin MARK II Di622
    Stuff: Expodisc Neutral & Portrait
    ​Editing: CS6, CC, Nik Tools, Portrait Pro 12, Topaz
    Spyder4Pro
    https://www.flickr.com/photos/122672034@N04/

  10. #30
    Senior Member
    Dawg Pics's Avatar

    Re: Astrophotography gear?

    Shooting the moon is like shooting a light bulb. If you look at the moon with a telescope and don't put a moon filter on, when you look away, you will see spots. Ha

    I started by looking at a few images I liked and used the EXIF data provided to start. Then I did some adjustments from there. It just kind of gives an idea of what is happening with shutter, aperture and ISO for different shooters.

    Take a look at this one shot with a D3200.

    https://nikonites.com/low-light-and-...tml#post221277
    Thanks/Like Yan Lauzon Thanks/liked this post
     
    "Remember to gaze up at the night sky because there is a little bit of the cosmos in each of us."


    Um yeahhhh, I shoot a lot of pics of my dogs.
    D500 (DOB 05/26/17), D300, D80, D100 R.I.P., SB-800





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