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Thread: Nikon AF system

  1. #1
    Administrator, Instructor Guy Mancuso's Avatar
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    Nikon AF system

    Well as much as a manual guy i am , I do have to say the AF system is amazing. I shot at least 30 images of three planes in landing mode and used continuous follow focus and the sucker just does not miss. I wish i was this good. 180 here
    Photography is all about experimentation and without it you will never learn art.

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  2. #2
    Administrator, Instructor Guy Mancuso's Avatar
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    Re: Nikon AF system

    3 frames latter still tracking like dog after a rabbit.

    BTW that is how you land in a cross wind , wind down into the wind. In this case left wheel first hits the deck
    Photography is all about experimentation and without it you will never learn art.

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  3. #3
    Subscriber gogopix's Avatar
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    Re: Nikon AF system

    Yup, slip rather than crab.

    But in the old days with a J-3 or a Luscomb, landing sideways and taking the crab off at the last minute sure was exciting!

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    Administrator Bob's Avatar
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    Re: Nikon AF system

    We do the wing low cross-control technique now.
    Keeps one wheel pointed down the runway.
    -bob

  5. #5
    Member gromitspapa's Avatar
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    Re: Nikon AF system

    Did you catch this attempted Lufthansa crosswind landing?

    http://www.cnn.com/video/#/video/wor...ef=videosearch

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    Administrator Bob's Avatar
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    Re: Nikon AF system

    Yes, I saw that,
    THAT is NOT the wing low cross-control technique.
    That is the old stabilized approach an de-crab at the last instant and loose control technique.
    -bob

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    Workshop Member ChrisDauer's Avatar
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    Re: Nikon AF system

    I hadn't seen it. Thanks! That was awesome. Reminds me of the good old days of Kai Tak Airport in Hong Kong. There are tons of great shots taken from that airport as well.

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    Subscriber gogopix's Avatar
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    Re: Nikon AF system

    I'm sure during his approach he saw the cross-control would put his rt wing too low and attempted crab.
    Should have changed runways or found another field!

    Looks like he recovered without much damage.
    Planes are tough

    Victor

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    Subscriber Member kit laughlin's Avatar
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    Re: Nikon AF system

    Guy: nice work.

    I agree, that continuous focus (if you use a relatively small group of sensors, and keep an eye on what they are locked on to!) can do better than I can, MF-wise, for sure.

    Horses for courses

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    Subscriber gogopix's Avatar
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    Re: Nikon AF system

    http://cgi.ebay.com/Leica-Leitz-Tely...QQcmdZViewItem

    focus, smokus

    THIS is what you need for that Nikon!!

  11. #11
    Subscriber Member kit laughlin's Avatar
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    Re: Nikon AF system

    Nice, especially the stock!

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    Senior Member dhsimmonds's Avatar
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    Re: Nikon AF system

    Nice photo's Guy, but pity about the "frozen" propellor or perhaps the engine really had stopped!!?

    Getting the shutter speed just right for prop. aircraft is always difficult in aviation photography which is why I prefer to photograph jets!
    Cheers, Dave
    www.simmondsphotography.com

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    Administrator, Instructor Guy Mancuso's Avatar
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    Re: Nikon AF system

    Exactly Dave. I was playing it save for this one and normally I only shoot jets. This general aviation stuff is completely different stuff all around. The cockpits are just pure hell to shoot in. I actually had to sit on two tripod legs for one of them because there was no room by even a inch in either direction. Than i got stuck in the damn thing and could not get out. It was pretty funny and i lost 25 lbs just imagine if i was my fat self. LOL
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

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    Administrator Bob's Avatar
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    Re: Nikon AF system

    skylane full rpm is 2400rpm which is one rotation each 1/40 second.
    So if you want about one third of a turn of prop blur, try 1/125 during
    the takeoff roll and maybe 1/30 to 1/60 on the landing flare.
    -bob

  15. #15
    Administrator, Instructor Guy Mancuso's Avatar
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    Re: Nikon AF system

    Bob , when I was out there one guy did do the crab style. Have to say that looked really weird to do. Bunch of aircraft techs out there with me and they were laughing pretty hard on that one. It does look like a crab landing
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  16. #16
    Subscriber gogopix's Avatar
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    Re: Nikon AF system

    Quote Originally Posted by Bob View Post
    skylane full rpm is 2400rpm which is one rotation each 1/40 second.
    So if you want about one third of a turn of prop blur, try 1/125 during
    the takeoff roll and maybe 1/30 to 1/60 on the landing flare.
    -bob
    But you will blur the plane, which is still going 100' per second

    Shoot quartering from front (or back); tell the pilot to full throttle right bfore touchdown and go around. You'll get some blur at 1/1000 but the plane image will be in focus since only edges will move outward. and much less than 100'/sec (cosine and all that)
    Last edited by gogopix; 5th April 2008 at 09:25.

  17. #17
    Administrator Bob's Avatar
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    Re: Nikon AF system

    49 knots finals speed with full flaps comes out to about 82 feet per second, at a 60degree quartering angle that reduces it to 41 feet per second and that is not too difficult to pan to follow and get a nice sharp shot since I would expect that you would find a shooting position at least 100 feet away (the wingspan is about 36 feet if I remember correctly and typical runways at larger airports are 100-150 feet wide).
    With panning, you don't need to coordinate with the pilot.
    -bob

  18. #18
    Subscriber gogopix's Avatar
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    Re: Nikon AF system

    yes, panning can help. Takes some skill. I forgot with the Nikon, the focusing is handled, so you just need to pan and frame.

    For those of us still with MF, it's a bit trickier (though my hands HAVE had 65 years experience in working!

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    Re: Nikon AF system

    Here are few plane shots that I took panning and at 1/320 for the prop, 1/800 or 1/1000 for the fast moving jets.
    Last edited by harmsr; 5th April 2008 at 11:31.

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    Re: Nikon AF system

    Those were with my old D200 on continuous focus mode, panning, and a lens with no VR.

    The Nikon focus system works really well. However on a 300mm lens (450 on the cropped D200 sensor), I did have to basically prefocus manually in order to avoid the lens hunting while trying to find the planes farther out and then tracking them as they approached.

  21. #21
    Subscriber gogopix's Avatar
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    Re: Nikon AF system

    very nice work esp with the long lens. I like the sun angle on the second shot.

    Of course panning close to ground, need to accept blurred background as well.

  22. #22
    Administrator Bob's Avatar
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    Re: Nikon AF system

    I think that blur adds to the sense of speed.
    -bob

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