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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 23 Jun 2012 (Saturday) 10:23
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1DX owners unite! Discuss and post photos!

 
David ­ Stallard
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Jul 19, 2015 11:07 |  #6976

Set on 3 but it still does it with IS turned off which I why I think it's a body issue, it's odd and I am tempted to buy another 1DMKIV just to try it out.

Thanks again.

.DAVID.

PS: have just read a few similar items on the interweb thingy and the general consensus seems to be to take it off BBF and put control back to the shutter button, I will have to try it at the next meeting on the 1st (unless anyone else cares to try it before hand)


EOS box that goes click and some tubes with glass in them on the front.
http://www.davidstalla​rdphotography.com/ (external link)

  
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Voaky999
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Jul 19, 2015 15:46 |  #6977

IMAGE: https://farm4.staticflickr.com/3778/18996216093_73d9ca1523_b.jpg

Don
"Knowledge is Good" Emil Faber

  
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johnf3f
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Post edited over 4 years ago by johnf3f.
     
Jul 19, 2015 15:57 |  #6978

Have you tried "Case 5" in the AF menu?
I am not a motor sports photographer, though I do try it occasionally, but I find this mode works well for birds in flight. Actually I use it for everything, even landscapes!~ Yup that is servo AF (case 5) for landscape, it works and I am too lazy to faff about changing things, in focus is in focus!
I was down at the Pembery circuit about a month ago and banged off 2800+ images - sorry I got a little excited. Except for when I was mucking about with VERY low shutter speeds My 1DX missed focus on 2 frames - thinking of sending it for repair! The majority of my shots were approaching and crossing/panning shots, but a number were of cars going away with lots of dust in the way - no issues. For reference my lens was a Canon 300 F2.8 L IS Mk1, and I only use BBF.
Give Case 5 a try, I didn't like case 3, I hope it works as well for you as it does for me.


Life is for living, cameras are to capture it (one day I will learn how!).

  
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jack880
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Jul 20, 2015 07:02 |  #6979

I haven't noticed focus problems specifically with subjects moving away from me rather than towards me, but I've noticed when I shoot (at 12 fps) my toddler running towards me I get most shots out of focus, regardless of the case and other AF adjustments. Everything is set to focus priority over speed. I seem to get one or two in focus, then a run of 5 or so out of focus. I manually select the AF point (single point) and sometimes miss the subject so I'd expect the shot to be out of focus, but often when it's out of focus the point is right on her face.

I've noticed the issue with my 70-200 mk2. That lens has been sent to Canon a couple of times with my 1DX body, and they have supposedly been calibrated together, so in theory I've got one of the best focusing DSLR and lens combinations there is!

I put my problems down to the very narrow DOF when shooting at 200 mm and f/2.8 with the subject only 5 metres or so away from me. The DOF must only be about 5-10 mm. I've presumed that I'm just expecting too much from the equipment. Although I'm definitely open to suggestions that I'm doing something wrong if anyone can suggest what it might be!


https://www.flickr.com​/photos/jackhenriques/ (external link)
1DX, 7D, 20D, G7X II, 70-200 f/2.8 L IS II, 24-70 f/2.8 L, 16-35 f/2.8 L II, 50 f/1.8 II, 50 f/1.4, TS-E 17 f/4 L, 8-15 f/4 L, Sigma 17-50 f/2.8, Sigma 8-16 f/4.5-5.6, Sigma 150 f/2.8 macro, x1.4 extender II, Kenko extension tubes, 430 EX II x 2, DJI Mavic Air

  
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doofuss
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Jul 20, 2015 09:04 as a reply to  @ jack880's post |  #6980

I nearly always used AI Servo with case number 6, and like you, set to focus priority over speed and always used AF point expansion for my focus point......My results were pretty good, but like you, there were always a few that were out of focus.

I have just recently tried using AI Servo AF with all 61 points used for automatic tracking and got very good results.

I am sure you have most likely already seen this PDF AF guidebook, http://www.learn.usa.c​anon.com …/2012/1dx_guide​book.shtml (external link) but the section I am referring to is on pages 37-38. So far I have only tried using the auto tracking AF using a Canon 100-400 shooting 12 fps for my dog running flat chat towards me chasing his ball. Every shot was smack bang in focus.


Canon 1dx & 7d gripped, Canon EF 100-400mm f/4.5-5.6 L, Sigma 120-300 f2.8 (sports), Sigma 70-200mm f2.8, Sigma 24-70 f2.8, Canon EFS 17-55mm f2.8, , Canon EF 50mm f/1.8, Sigma 8-16mm f4.5 - 5.6, Sigma 2 x teleconverter, Canon 600EX-RT Speedlight.

  
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agedbriar
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Jul 20, 2015 15:34 |  #6981

According to VWDOF, at 200mm, f/2.8 and with a subject distance of 5m, the DOF for FF amounts to 0.101m.




  
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johnf3f
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Jul 21, 2015 16:28 |  #6982

DOF Master says about the same 0.1 Meters (10cm about 4 inches). I use my 800mm down to about 5.5 meters at F8 (with extension tubes) DOF is 0.02 meters (2cm = less than 1 inch) no focus issues so long as the subject isn't moving too much!

Jack880, what focus setup are you using? I am using Case 5 with first and second frames set to focus priority, at this range I am usually on center point Spot AF.


Life is for living, cameras are to capture it (one day I will learn how!).

  
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2slo
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Jul 22, 2015 04:01 |  #6983

IMAGE: https://farm4.staticflickr.com/3699/19721678260_00c5e54a0d_b.jpg
IMAGE LINK: https://flic.kr/p/w3JK​Rw  (external link) Sunset stretch (external link) by Mark Corpe (external link), on Flickr



  
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ONE30
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Jul 22, 2015 10:12 |  #6984

...my first time at the airventure show in oshkosh!

difficult to handhold at a slow shutter speed to capture prop blur


IMAGE: http://i1109.photobucket.com/albums/h433/shutter_dreams/1DX/AK1X7357c_zps7qunheaa.jpg


IMAGE: http://i1109.photobucket.com/albums/h433/shutter_dreams/1DX/AK1X7596_zpsvfezbg6e.jpg


IMAGE: http://i1109.photobucket.com/albums/h433/shutter_dreams/1DX/AK1X7705c_zpslydbwwas.jpg


IMAGE: http://i1109.photobucket.com/albums/h433/shutter_dreams/1DX/AK1X7663c_zpslkzjwtlx.jpg



  
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johnf3f
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Jul 22, 2015 17:12 as a reply to  @ 2slo's post |  #6985

Beautiful light in that shot 2slo!


Life is for living, cameras are to capture it (one day I will learn how!).

  
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doofuss
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Jul 23, 2015 01:41 |  #6986

Pro wakeboarder Chris O'Shea

IMAGE: https://farm4.staticflickr.com/3751/19934753105_fafe8f7318_b.jpg

Canon 1dx & 7d gripped, Canon EF 100-400mm f/4.5-5.6 L, Sigma 120-300 f2.8 (sports), Sigma 70-200mm f2.8, Sigma 24-70 f2.8, Canon EFS 17-55mm f2.8, , Canon EF 50mm f/1.8, Sigma 8-16mm f4.5 - 5.6, Sigma 2 x teleconverter, Canon 600EX-RT Speedlight.

  
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jwcdds
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Jul 23, 2015 03:11 |  #6987

IMAGE: https://julianchen.smugmug.com/Photography/Random-People/i-rh6RdfS/0/XL/20150722-Canon%20EOS-1D%20X-1DX_7864-XL.jpg

Julian
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K ­ Soze
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Post edited over 4 years ago by K Soze.
     
Jul 23, 2015 21:13 |  #6988

A little fun. Single softbox with ambient.... liberal processing


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I try to make art by pushing buttons

  
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doofuss
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Jul 25, 2015 04:33 |  #6989

North Shore Oahu

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Canon 1dx & 7d gripped, Canon EF 100-400mm f/4.5-5.6 L, Sigma 120-300 f2.8 (sports), Sigma 70-200mm f2.8, Sigma 24-70 f2.8, Canon EFS 17-55mm f2.8, , Canon EF 50mm f/1.8, Sigma 8-16mm f4.5 - 5.6, Sigma 2 x teleconverter, Canon 600EX-RT Speedlight.

  
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jack880
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Jul 25, 2015 09:07 |  #6990

Thanks for all the responses about the focusing. Thinking about it I was probably quite a bit off with the 5m - it must have been a lot closer to get the DOF down to around 5-10 mm at 200 mm and f/2.8.

Just looking at some shots from the other day and they seem better, but were from further away so greater DOF. I was using Case 1 with tracking sensitivity at 0, acc/decc tracking at +1 and AF pt auto switching at 0.

I have 1st and 2nd images both set to focus priority.

I have the iTR AF tracking set to on, but presumably this has no effect if you're using a manually selected single AF point? Maybe I should play around with other AF selection areas. Doofus, what did you use for tracking your dog?

Generally though I'm happy with my results and fully appreciate I've got a lot more to learn about customising the AF system.

Thanks


https://www.flickr.com​/photos/jackhenriques/ (external link)
1DX, 7D, 20D, G7X II, 70-200 f/2.8 L IS II, 24-70 f/2.8 L, 16-35 f/2.8 L II, 50 f/1.8 II, 50 f/1.4, TS-E 17 f/4 L, 8-15 f/4 L, Sigma 17-50 f/2.8, Sigma 8-16 f/4.5-5.6, Sigma 150 f/2.8 macro, x1.4 extender II, Kenko extension tubes, 430 EX II x 2, DJI Mavic Air

  
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