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Need help from the hogs with autofocus
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Jul 13, 2015 13:18:52   #
paulrph1 Loc: Washington, Utah
 
Use proper photo technique. ISO 400, sufficient shutter speed, depth of field, focus point, tripod, remote release, proper stance for holding camera, hold your breath, shoot at a decent resolution in the camera, don't worry about how many images you can cram on an SD card buy another card they are cheap. Proper use of shutter release button. clean the lenses, remove cheap filters, buy good glass,
There are many factors and any one can throw off the image.

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Jul 13, 2015 13:40:11   #
randik
 
CO wrote:
In the menus under a: Autofocus check to see if a1: AF-C Priority Selection and a2: AF-S Priority Selection are set to Focus or Release. It's probably best to use AF-S and have it set to the Focus priority option for your photos.


I don't have an AF-S option under a1...I only have AF-C priority selection with the choices being release or focus. and for # of focus points my choices are 39 or 11.

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Jul 13, 2015 13:50:26   #
Dutzie Loc: I'd like to know
 
The next time steady your camera on a fixed object. You might be moving involentarily when you hit the button...

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Jul 13, 2015 14:26:27   #
CO
 
randik wrote:
I don't have an AF-S option under a1...I only have AF-C priority selection with the choices being release or focus. and for # of focus points my choices are 39 or 11.


I didn't know exactly which modes the D5300 has. You would want to set the AF-C priority selection option to Focus. It will not take the photo until it achieves proper focus. I know that you can select 39 or 11 focus points but you can select just the center focus point also. I just looked it up on Nikon's website for the D5300. That's great if the scene is cluttered and you want to pin point focus on a particular subject.

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Jul 13, 2015 15:28:20   #
Pearlbell
 
Had difficulties with my D3100. Problems with focusing and nothing on the "mode" dial would work. Ended up calling Nikon help line and a very knowledgeable and nice person talked me through a resetting procedure. If you choose to do so have your camera handy and also the lens you are using. They will want numbers off these pieces.

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Jul 13, 2015 15:45:52   #
Collie lover Loc: St. Louis, MO
 
randik wrote:
I'm traveling with my new nikon d5300 and tamron 18-270 piezo (NO filter). My photos are fuzzy and I don't know why. I've downloaded 3 successive photos in VGA (I hope that's the right format for analysis). I'm sure it's not the camera and probably not the lens (both new), and most likely me and my settings. I'm on a road trip in France for 3 weeks and don't want to ruin the rest of the pix. I'm a relative newbie so please explain in simple sentences. Thanks.


Maybe it's just a simple adjustment of the diopter. That can make a difference.

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Jul 13, 2015 16:08:36   #
randik
 
Thank you all. I will call Nikon upon my return and load the CD. Also, a tutorial probably wouldn't hurt &#128518;

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Jul 13, 2015 16:27:39   #
JCam Loc: MD Eastern Shore
 
Randik, another thing to remember is that the more focus points you have active, the longer the camera will take to achieve accurate focus. It analyzes each one, and is fairly fast, but you may notice a discernible lag between 9 or 11 and 39 points, and it definitely increases the chances of it picking a point you don't want.

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Jul 13, 2015 17:29:03   #
bbrown5154 Loc: Baltimore, MD
 
Double check and make sure your not letting the camera select whats in focus.

My recommendation is to start with AF-S.
Also I know this is stupid but make sure your stabilization is set.

Here's a link that should help...

http://www.dummies.com/how-to/content/how-to-change-the-focus-mode-setting-on-your-nikon.html

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Jul 13, 2015 17:49:52   #
RWR Loc: La Mesa, CA
 
Collie lover wrote:
Maybe it's just a simple adjustment of the diopter. That can make a difference.


Diopter adjustment affects only the user's view of the focusing screen, it does not affect the image at the focal plane.

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Jul 13, 2015 18:09:33   #
sportspixguy Loc: Madison, WI
 
Make sure you are set for single shot AF. If you are on continuous autofocus as if trying to shoot a moving target, the camera may take the picture without being in focus. Try again at AF-S and might have solved the problem.

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Jul 13, 2015 18:30:44   #
tomcat
 
randik wrote:
Would it help if i change autofocus setting from 11 points to 39 (my only option)? I enlarged jpgs (which are set for fine). Does this help at all (the attached are the original photos)


Randik, I looked at your 2nd image here. The first one had the people walking into your image and I did not like the composition. What I see is this:
1. With your autofocus settings, the camera bag of the man in the center appears to be in focus, as well as some of the leaves in the tree. So the camera appears to be focusing, but not on your main area of interest. It appears to be focusing on the closest-subject-priority (i.e. one of those 11 points you mentioned), which is not the buildings and the folks sitting outside them. This is why the image appears blurry because your main area of interest is indeed, not in focus.
2. Set the camera autofocus mode to AF-S, single servo focus and move the focus target point (the square) to the center of the viewfinder. This will stop the camera from using the 11 or 39 points to determine what to focus on. With this center setting, you can point the camera at what you think is the main focus area, press the shutter down half-way to lock focus and hold the shutter down, while you recompose your subject/image

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Jul 13, 2015 21:55:23   #
mcmm Loc: Kansas
 
Thanks Bill for the link. I have downloaded it to my phone and think it will really be helpful.
Bill Houghton wrote:
You are not downloading the file, you are down loading the thumbnail. at 95K we can hardly see whats going on. Down load the JPEG of at least 5 meg is you want an honest response.

The only thing I can see is your shooting at f9, and using pattern for you focus, which means your camera is taking and average and ajusting your focus to that average. At F9 your DOF is way to shallow for the photos I'm looking at. So in general your F stop need to come to . and set you focuse points to 1, then try shooting .

Others will give you better setting for a scene shot like you have.

Here is a chart you might find useful.

http://www.dofmaster.com/doftable.html
You are not downloading the file, you are down loa... (show quote)

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