Question about Nikon D80 Body Only Digital Camera

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More info for poor focus problem

Hi,
Thanks for helping me. I use an EX DG Sigma 24-70 lens. I keep it in AF mode as well as the camera. I have just gotten a shutter release cable which I hope will help, but I haven't tried it yet. I was used to handholding most shots with the Sony camera... this is hard to justify. Is there such a thing as a misaligned Auto Focus feature on my camera? It is just a bit off, although the focus in the viewfinder looks sharp. Some shots look in focus and sharp until I get them on my monitor.

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I don't know about any misaligned focus feature on the D80. Have you checked to see what focusing mode you are using, ie. single auto focus, closest subject, or wide area focus. Closest subject can really throw off your focus. I would switch to single auto focus mode. Another reason for poor focus would be dust on the auto focus sensor which is located under the mirror box.

Check on the focus mode, if it's not a mechanical problem, I'd be willing to bet that's what it is.

Posted on Jul 22, 2008

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Posted on Jan 02, 2017

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I have the sigma 70-300mmD i just bought for my nikon D40 and i am having trouble with the auto focus. it will not autofocus can anyone tell me what i am doing wrong and or where i can download the...


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Bought a Sigma DG 70-300mm 1:4-5.6 autofocus for my Nikon D40. When the lens is attached the settings get locked on MF. Is there anything I need to adjust to fix this problem? Charles


The Sigma 70-300mm f/4-5.6 DG will not autofocus with the D40 since the lens does not feature an internal focusing motor (HSM). The D40 does not have an AF motor in the body and hence it can autofocus only with lenses featuring an integrated motor (eg. Nikon AF-S lenses, Sigma HSM lenses, Tokina DX II series etc). Unfortunately you can use the said lens only in MF mode.

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Sigma User Manual for 105mm f2.8 Macro


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Well you can please follow the link below to get your manual -

http://www.dphotojournal.com/sigma-105mm-f28-ex-dg-macro-reviews-sample-photos/

(click on the manual tab and then click on - Download Sigma 105mm f/2.8 EX DG Macro User Manual (PDF – 67kb), thats it)

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Auto focus not working


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X 2 converter


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Re: poor focus problem


usandy,
You can set the focal point by toggling the menu switch (you can see it moving around into different locations as it "wraps" around the viewfinder, now depending on your f-stop the area that is not in focus will be soft, you can also experiment with the autofocus lock on you subject and evn try amnually focusing on your subjects.
randy320sgi

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135-400mm lens on nikon d40


Unfortunately, this lens is not supported by the D40 due to Nikon's unfortunate decision to leave out the autofocus motor from this camera.  This is why I tell folks not to waste their money on the D40 - access to the many, many, many lenses that Nikon has made over the years, many of which are available used for a substantial savings, is lost on this camera.  The only Nikon lenses that work are AF-S lenses, and some third party lenses that have their own internal motors.  I got a list of Sigma lenses that are compatible with the D40 for you:
The list of compatible Sigma lenses for the Nikon D40 as of the current date is as follows:
  • 10-20mm F4-5.6 EX DC
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  • 70-200mm F2.8 DG MACRO
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  • 100-300mm F4 DG
  • 120-300mm F2.8 DG
  • 300-800mm F5.6 DG
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  • 30mm F1.4 EX DC HSM
  • 150mm F2.8 EX DG
  • 180mm F3.5 EX DG
  • 300mm EX DG
  • 500mm EX DG
  • 800mm f5.6 EX DG
from here:  http://www.imaging-resource.com/NEWS/1177682545.html
Sorry for the bad news.  The cheaper thing at this point may be to sell the D40 and get a D80.  I personally have a D70S, but that is no longer made.  

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