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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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...


The Nikon D40 does not have an autofocus motor, relying on the lens having one. This Sigma lens does not have such a motor, relying on the camera having one. Nikon designates lenses with an autofocus motor AF-S, Sigma calls theirs HSM.

Dec 17, 2010 | Sigma f/NIKON- 28-90/3.5-5.6 Aspherical...

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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.

Sep 02, 2010 | Sigma 70-300mm f/4-5.6 DG Lens

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According to the manual for my Sigma 105mm f2.8 EX DG Macro lens with my Nikon D90, when using P or Sutter priority auto mode the diaphragm control ring needs to be set to the smallest aperture(f32) and...


In all modes the aperture ring on the lens should be locked at the smallest aperture. In the M and A modes you control the aperture by turning the command dial on the front of the camera. In P and S modes you control the aperture indirectly by turning the command dial on the back of the camera.

Aug 04, 2010 | Sigma Telephoto 105mm f/2.8 EX Macro...

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Sigma User Manual for 105mm f2.8 Macro


Hi there,

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)

Good Luck!!

Thanks for using FixYa!!

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Sigma 50-500mm auto focus problem


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Auto focus not working


Your Sigma 28-300mm doesn't have a HSM-motor as far as i know. When you switch it from MF to AF, you also have to disengage the manual focusing ring by pulling it towards the camera, or pushing it away from the camera. Using the AF without unlocking the manual focusing ring may damage the AF motor. 
I hope this helps, 
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Jan 15, 2009 | Sigma 28-300mm f/3.5-6.3 DG Macro for...

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X 2 converter


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Sep 30, 2008 | Sigma Cameras

1 Answer

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

Jul 21, 2008 | Nikon D80 Digital Camera with 18-200mm...

1 Answer

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
  • 12-24mm F4.5-5.6
  • 17-35mm F2.8-4 DG
  • 50-500mm F4-6.3 DG
  • APO 50-150mm F2.8 EX DC HSM
  • 70-200mm F2.8 DG MACRO
  • 80-400mm F4.5-5.6
  • 100-300mm F4 DG
  • 120-300mm F2.8 DG
  • 300-800mm F5.6 DG
  • 14mm F2.8 EX
  • 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.  

Dec 06, 2007 | Sigma Zoom Tele 135-400mm f/4.5-5.6 APO...

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