carpetpaul
Joined: 27 Oct 2006
Posts: 20
Location: Blackpool UK
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 Posted:
Sat Apr 21, 2007 4:08 pm |
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I've had my 450D for a few weeks now, and have just had the chance to give it a good test out in the New Forest on various wildlife subjects. I have a few questions which I'm hoping you can answer, feel free to answer any or all of these questions, any help would be great.
1, my first question regarding zoom for accurate focus. I was once told that you could get a more accurate focus by zooming in on your subject when you focus, and then reducing the zoom for the shot. My issue with this is firstly... if you do not let the camera take the exposre again at the reduced zoom setting then you'll have an incorrect exposure... however try this, and you'll focus again defeating the point in the first place (unless you start knocking the focus onto manual.... then the whole thing becomes pointless (I'm not aware of any setting where the exposure is constrantly tracking... unless in the sport mode if it does this each time it re-focuses ?) - maybe I should give up and accept the focus I'm offered at the time, and avoid zooming in !
2, Whilst I understand the basics of photography, and have a simple understanding of the camera's instructions, I couldn't find a setting that would have the camera set the fastest possible shutter speed for each situation. I wanted (whilst shooting wildlife with a long lens) to be able to just shoot away knowing that the camera was doing it's best to avoid shake. It was suggsted to me to set Av to its widest setting, getting the most light into the camera and therefore forcing the fastest shutter speed, is this correct ?
3, This question relates slightly to question one, if I'm presented by, lets say a horse or a deer which is side on to me, if I focus on the eyes and therefore set the exposure, how am I sure that when I swing the camera back around to include more of the background that the exposure will be correct, as, if I hold the shutter button half way to keep the focus, the exposure is going to stay locked too ?
If you can offer me any more advice for shooting wilklife with the 450D I'd be very keen to learn
many thanks for reading and for your help !
Paul |
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