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12-19-2013, 04:21 PM - 1 Like   #1
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K-3 tracks oncoming transport

I've posted a series of shots with the K-3 and DA 18-135mm @ 135mm f5.6, 1/1000s, set for high-continuous burst and AF-C. The road is a secondary highway, speed limit is 80km/hr (50mph), but most everyone is speeding.

The posted images are only 1600 pixels wide because I didn't want to use too much bandwidth. Viewed at 24mp resolution, all are in focus. I took a bunch of sequences of passing transports on the same day, and every photo is sharp:

https://picasaweb.google.com/100586096103361553535/OncomingTransport?authkey...LX0htrggdSzGQ#

Here are some bird-in-flight shots with the DA*300. I posted them earlier, but in case you missed it:

https://picasaweb.google.com/100586096103361553535/K3BIF#

The next ones show the effect of the adjustable focus lock (focus stayed on the subject, ignored the wires, pole and second bird):

https://picasaweb.google.com/100586096103361553535/K3TrackingTest?authkey=Gv...Xc5cLh-uGl9AE#

12-19-2013, 04:27 PM   #2
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That looks great!
Thanks for posting!
What were the AF settings on your K3 for those shots?
12-20-2013, 06:01 AM   #3
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QuoteOriginally posted by dltorre Quote
That looks great!
Thanks for posting!
What were the AF settings on your K3 for those shots?
+1. Looking for your settings too.
12-20-2013, 08:46 AM - 1 Like   #4
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For BIF: K-3, DA*300 @ f/5.6, 1/1500s, ISO 400. AF-C, auto-select AF (27 points). I guessed at suitable settings for tracking:

Custom Menu Parameter - Setting I used

16. 1st frame action in AF-C - Auto
17. Action in AF-C Continuous - Focus Priority
18. Hold AF status - Medium


For the transport: K-3, DA 18-135mm @ f5.6 and 1/1000s, AF-C center point select, 9-point expanded area.
16. 1st frame action in AF-C - Focus priority
17. Action in AF-C Continuous - Focus Priority
18. Hold AF status - Low


Going forward,
- I intend to leave menu items 16 and 17 on focus priority at all times. I have no use for OOF shots.
- Line 18, Hold AF, I will stay with Low as default, until I know better how it works.
- Focus point choices will depend on what I'm shooting. It is damned hard to keep a fast bird in the center, so I will use all the points. Focus points are not a big issue with a truck.

For tracking to work, you have to ensure that the first shot is locked on your target. If the first shot locks on anything other than the subject, it will not let go and you will have a string of misses.


Last edited by audiobomber; 12-20-2013 at 10:22 AM.
12-20-2013, 09:11 AM   #5
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QuoteOriginally posted by audiobomber Quote
For BIF: K-3, DA*300 @ f/5.6, 1/1500s, ISO 400. AF-C, auto-select AF (27 points). I guessed at suitable settings for tracking:

Custom Menu Parameter - Setting I used

16. 1st frame action in AF-C - Auto
17. Action in AF-C Continuous - Focus Priority
18. Hold AF status - Medium


For the transport: K-3, DA 18-135mm @ f5.6 and 1/1000s, AF-C center point select, 9-point expanded area.
16. 1st frame action in AF-C - Focus priority
17. Action in AF-C Continuous - Focus Priority
18. Hold AF status - Low


Going forward,
- I intend to leave menu items 16 and 17 on focus priority at all times. I have no use for OOF shots.
- Line 18, Hold AF, I will stay with Low as default, until I know better how it works.
- Focus point choices will depend on what I'm shooting. It is damned hard to keep a fast bird in the center, so I will use all the points. Focus points are not a big issue with a truck.

For this to work, you have to ensure that the first shot is locked on your target. If the first shot locks on anything other than your subject, it will not let go and you will have a string of misses.
Thanks! Looking forward to trying these out.
12-20-2013, 09:43 AM   #6
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Thanks!!!
12-20-2013, 02:40 PM   #7
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Thanks Audiobomber, bookmarked for non-distant future use
12-25-2013, 07:23 AM   #8
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Yes, another thank you Audiobomber for posting your findings -

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