A friend of mine asked me to take a look at his daughters D3100 as the images seemed soft. I am not familiar with the 3100 but he knows I have Nikon equipment and thought I might be able to help. I downloaded about 60 images from her card (of 1400) and on screen it was quickly evident that all were out of focus, many very badly. I checked the basics and it appears her setting are correct (all default) and the camera has autofocus and VR on. I changed to single point autofocus and took several shots and all were out of focus. With the shutter button half depressed I could see the that the camera was focusing (I'm just not sure on what). The camera is about two years old and I doubt more than 3,000 shutter actuations. Are auto focus problems common on the D3100? Is it possible I missed a setting that someone might have mistakenly changed? Will appreciate any help/advice, Jim B
Thanks to you both for the suggestion, good idea. However, I've never had a DX camera. What of my FX lenses would be compatible (unfortunately I've got most that Nikon offers...). How about the 24-85 kit lens or a straight 50mm 1.4?
Thanks again, my lenses are new so all G, shouldn't be a problem. It does appear from the lack of responses that there is no common problem with the D3100 in terms of auto focus so that helps too (will give her some confidence that once fixed camera will be reliable).
I haven't really had a chance to use it much. I tried it hand-holding and found that didn't work too well (for me at least.) I need a Wimberley Sidekick for it, and that is the next purchase on my photo equipment list. The lens came highly recommended and I found a good deal on it used, so I snatched it up. Several others here have made plenty of excellent wildlife photos with it.
I plan to use it this winter set up in a birding blind on my carport, to take pics of birds near my feeder station. That should give me some practice before I venture out. The next trip where I hope to use it will be to Reelfoot Lake for eagles, in the depths of winter.
working on it in Middle TN Nikon D3100
35 mm 1.8 Nikkor 18-55 mm Nikkor VR 55-200 mm Nikkor VR 55-300 mm Nikkor VR 150-500 mm Sigma OS MeFoto Road Trip w/Q1 ballhead Feisol CT3471 & Markins M20 ballhead
I have a D3100 (3 yrs old, 31000 clicks), and I've always struggled with the focus. At first, I thought it was just me, as this is my first DSLR (and I'm sure it was me, at least part of the time - lol). As time has passed, however, I still have issues. I've read that there are some issues with the autofocus not being quite right (sorry, can't remember where I saw that).
If I want really good focus, I use the live view feature, zoom in, and focus manually. When I do live view after autofocusing, often it's noticeable that the autofocus isn't really sharp . I think the autofocus works better when there's lots of light. Midday non-macro shots, for example, are usually fine. For macro shots, you definitely need to use live view and manual focus.
Sun 01-Dec-13 11:49 AM | edited Sun 01-Dec-13 11:54 AM by dagoldst
Here is something you might watch out for if you are having AF issues with the D3100 - the AF point can get easily moved due to the camera not having a lock on the 4 way controller on the back, when in single AF point mode, (my palm bumps it constantly). I bought one of these nice little cameras for my wife, and that has been her chief issue in using it.
So I put the camera back in auto AF and I have spent some time with her making sure she is watching which AF point flashes on her subject so that she knows what is going to be in focus. Since she became more aware, the incidence of OoF pictures has gone way down.
The other thing was I set her camera to auto ISO all the time for her and I found that she needed to keep her minimum shutter speed at 1/60th of a second, even with the VR on the kit lens.
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