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08-22-2016, 12:25 AM - 4 Likes   #1
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Pentax K-1: continuous sequences of subjects moving towards the photographer - AF.C

This is just showing some technocratic proof that the K-1 is able to follow focus of quickly moving subjects coming at her - showing some strictly sequential shots.

I admit I do cherry pick ALL my images. All the time.
But some seem keen on seeing the rest, what I consider electronic garbage.
I uploaded five about 1-1,5 second burst (sorry I did not intend to take longer sequences there) sequences from my garbage stack. I don't like them enough to get into the "cherry picked" top 100, so they had to go. You know it all is a matter of taste.
My preferred ones went here: https://www.pentaxforums.com/forums/190-pentax-k-1/328166-pentax-k-1-does-mot...mx-racing.html.

Feel free to check the non-cherry picked garbage: In full 36 MPx res, not cropped at all. Just slammed one general development preset on all of them, so don't look at colors, noise or anything.





























I see no major need to whine about the autofocus performance. That's is just good enough for my modest requirements. I don't want statistics, I want a couple of nice images after a day of shooting and I want to enjoy the process.
I love the camera. I love the lens.
Just my 2 cents.


Last edited by beholder3; 08-22-2016 at 04:27 AM.
08-22-2016, 12:32 AM - 2 Likes   #2
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QuoteOriginally posted by beholder3 Quote
I love the camera. I love the lens.
At the end of the day that is all that matters.

And you are out using it to make images, enjoying what you are doing. Which is more than can be said for a lot of people who obsess about the last ounce of performance between one camera and another
08-22-2016, 01:22 AM   #3
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I take it you added the vignetting?

Adam
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08-22-2016, 01:29 AM   #4
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Added in LR.

08-22-2016, 01:46 AM   #5
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QuoteOriginally posted by beholder3 Quote
I see no major need to whine about the autofocus performance. That's is just good enough for my modest requirements. I don't want statistics, I want a couple of nice images after a day of shooting and I want to enjoy the process.
Thats crux of it. The K1 AFC may not beat the competitions statistically, but it doesn't mean it can't be used for sports, BIF and planes in flight Pentax users like you have shown. If it can do those things it can be used on moving children, and which profession that needs near 100% AFC for moving children? I am looking forward to getting my K1 next week and can't wait to use it on my moving children.
08-22-2016, 02:52 AM   #6
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QuoteOriginally posted by Adam Quote
I take it you added the vignetting?
Yes, but forget about it, just look if the driver is reasonably sharp and kept so over the series.
08-22-2016, 03:01 AM   #7
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I must confess, I've seen a big improvement in AFC with the k-1 over the k-3. Ok so the competition may be better, but it's the incremental improvement I applaud. My DA*300 was always very hit and miss on the k-3, on the k-1 it just nails it. It's been good enough to capture dragon flies and birds in flight, something my k-3 would have never been able to do. Now if they could just expand those focus points beyond the APSC region, that would make me happy (although to be fair, I'll be likely to skip the next generation of FF, the K-1 does everything I need, and will do for some years to come)
08-22-2016, 04:43 AM   #8
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One way to make it hit even more is to stop down. When shooting moving targets with the DFA150-450 I use f/7.1 or 8 when @450. Also I make sure the shutter speed corresponds to the action. BIFs around 1/1000 or faster.

08-22-2016, 04:44 AM   #9
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I liked the old thread title better...
08-22-2016, 04:45 AM   #10
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QuoteOriginally posted by robthebloke Quote
I must confess, I've seen a big improvement in AFC with the k-1 over the k-3. Ok so the competition may be better, but it's the incremental improvement I applaud. My DA*300 was always very hit and miss on the k-3, on the k-1 it just nails it. It's been good enough to capture dragon flies and birds in flight, something my k-3 would have never been able to do. Now if they could just expand those focus points beyond the APSC region, that would make me happy (although to be fair, I'll be likely to skip the next generation of FF, the K-1 does everything I need, and will do for some years to come)
Going from the DA*300 to the DFA150-450 was also an upgrade in focusing speed.
08-22-2016, 05:35 AM   #11
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Your pics are great, I had seen-enjoyed them in the Motocross thread. What I'm a bit concerned about is that threads like this are created to answer to those unbelievers or people who make various statements about the K-1 AF capabilities many of whom without even owning or having used one (according to their words). At first I was also tempted to make such a thread or post some long bursts of fast moving subjects and then I reconsidered. I posted a few examples of difficult to track targets (impossible to track incoming birds if the camera can't even lock focus on a slow moving bicycle according to some reviews) and that was it. I reconsidered because I'm totally satisfied with my K-1 and love it (even though it has some problems at the time being) and I have no intention, energy or time to spend to make other photographers change their minds. Everyone should buy and use the equipment that fits his/her needs.

From what I see there are many people out there that can afford the 6K specialized FF cameras they compare the K-1 with, along with the relevant super teles that take advantage of their high end AF systems... Even the crop sensored respective cameras cost more than a K-1, let alone with the accompanying lenses I mentioned. The road they should follow is easy to understand! Just move on with these systems...

What I'm a bit worried about though is that people expect from Pentax a K-1 with monster AF and buffer rate costing 2 or $3000! That is impossible to be developed. My guess is that if/when Pentax establish its presence in the FF market as well, it could consider developing a body for fast action and sports but it will be more or less at the same price level of the competition. As I have said before Ricoh-Pentax has done wonders and offer a camera packed with so many features and most importantly for me excellent IQ from the best in its category. Do you really believe that if the developers were given the permission to make a superb fast action camera with top of the class AF performance that could be released at $5000 they wouldn't have make it happen? I'm sure they would but how many of us and the other pros would spend that amount for an "underdog" like Pentax?

I see great and stable steps ahead from Ricoh-Pentax and I'm satisfied. The K-1 was the correct move from them and fits the needs of most of the exisitng Pentaxians and then some other serious photographers. Now glass is needed, everything else is just for having something to complain about. Use the K-1 push it to its limits and If you see that it doesn't cover your needs move on... You' ll only have spend 2000 extra dollars prior to bying your more than 10grant equipment from Canonikon... Not a big deal.

Last edited by redpit; 08-22-2016 at 06:31 AM.
08-22-2016, 06:04 AM - 1 Like   #12
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but wait, did you set your camera on a tripod and have the motoXers go out of the AF area? Surely this is not a good test. Actually using your skills to track the subject - how absurd!

/end sarc
08-22-2016, 06:30 AM - 1 Like   #13
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Nice shots. Maybe you should post your technique on how to maximize the k-1's AFC.
08-22-2016, 08:24 AM - 1 Like   #14
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QuoteOriginally posted by totsmuyco Quote
Nice shots. Maybe you should post your technique on how to maximize the k-1's AFC.
First and foremost:
Think about what you want to focus on. It should make sense. It should have some good contrast. And it should ne be hidden behind some other things too much. I settled for chest of the driver or starter number plate.
Then keep pointing the combo at this as good as you can.

A monopod helped with some shots, but is no use for others like jumps.

Second:
I made good experiences pressing the AF-on button on the lens with my left thumb as soon as I decided on a target subject, so the lens could start computing the AF.C. And 0,5-1 seconds later when the driver was where it got interesting, push the shutter button to fire.

Other:
  1. AF.C
  2. Sel-1 or Sel-9 (since the head of the driver is on the upper end I used the topmost AF point in the center column). If I had use a F2.8 lens like the 70-200, I'd used only one step upwards as only those middle three sensor are F2.8 enabled.
  3. Hold:Low
  4. AF.C priority 1st image: auto
  5. AF.C priority other images: auto
  6. JPG L*
  7. I explicitly turned off absolutely all other JPG corrections or automatisms.
  8. Used TAv mode all the time to set the aperture to open and set a certain time. Shutter times I experimented with anything between 1/320 and 1/4000 but mostly was stuck with very short ones due to the light and not having brought some NDs or at least a CPL. Generally I do not like to completely freeze dynamic subjects, so I prefer some blur on the wheels and with the dirt.
08-22-2016, 08:58 AM   #15
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Nice shots.
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