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27-11-2011, 10:32 PM
|  | Officer of the Wild Empire | | Join Date: Feb 2011
Posts: 955
| | | Re: Focus problems with low flying owls
Vic, an interesting post. Especially that you too have experienced the same problem I have with that lens "catching" on something close and taking a while to reset.
Cheers,
Bryan
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Please ignore the warning signs on my cage, you can feed the Yeti. |
01-12-2011, 10:14 AM
| | Officer of the Wild Empire | | Join Date: Feb 2011
Posts: 955
| | | Re: Focus problems with low flying owls
Re the poblems with low flying Short Eared Owls.
The Nikon Manual does point out the problem of getting focus when the object is in front of a similar coloured background.
But I've changed the focus lock tracking settings from medium to fast. i.e the focus lock point will change faster if it does pick up the owl from the background.
I'l test that for while. Not sure if it will help or hinder. It should however, reduce the chance of the focus locking onto a close object for too long.
Yesterday the SOEs that I photographed were a lot closer than normal and my angle was therefore facing up a bit more. So background less of a problem, so most were in focus. Shame about the fact that they only arrived after the best of the light was gone.  Haven't we all been there. LOL!
Cheers,
Bryan
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Please ignore the warning signs on my cage, you can feed the Yeti. |
03-01-2012, 06:20 PM
|  | Member of the Wild Empire | | Join Date: May 2007 Location: Woonsock South Dakota
Posts: 385
| | | Re: Focus problems with low flying owls
Quote:
Originally Posted by KentYeti  The Nikon 300mm f4lens is superb, at the focal length only bettered for sharpness by the 300mm f2.8 from what I have seen in reviews. And in January, thanks to a very kind offer from a WAB 'er, I'll get a chance to see that first hand.
The focus "locking up" for a few seconds only happens infrequently and only after I move from something circa 3m away to a much longer distance. I suspect a small software fault. I've tried repeatedly to replicate the fault at the same location as it last happened, but it works perfectly!
I will check through the D7000 manual again to make sure I am using the correct settings, and come back here for any further help arising from that. But from PMG's comments I suspect it is something that is going to happen sometimes for me and a few others at least when photographing any B-I-F at extreme range when it has a similar coloured backrgound. In my case a mix of the Yeti behind the camera not being quite fast enough, and also the lens focussing, especially with the 1.7TC, not being quite fast enough either. | The 2.8 is not sharper than the 300mm f4  | | | |
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