[obol] auto focus cameras

Dennis P. Vroman dpvroman at budget.net
Fri Jan 12 13:50:54 PST 2007


Have used this method and it sometimes will work if the light on the 
subject(s) is the same, otherwise what you wish to have a photo of might be 
either too light or dark.  Dennis


> Another suggestion:  Your "point-and-shoot" digital camera probably first
> focuses on the object in the center of the viewfinder, before it goes on 
> to
> capture the image.  In many simple cameras this focusing will happen when
> you depress the shutter button only halfway, but the capture will not 
> happen
> until you depress the button completely.  So... (if the bird is staying in
> one place long enough) focus on another (large, solid) object at the same
> distance as the bird by depressing the button halfway, then (while holding
> that locked-in focus by not releasing or depressing the button further)
> swing back to the bird and press the button down the rest of the way to
> capture the image.
>
> Worth a try, maybe?
>
> =====================
> Floyd Schrock
> McMinnville, Oregon  USA
> fschrock at macnet.com
>
>
>  ----- Original Message ----- 
>  From: Owen Schmidt
>  To: OBOL
>  Cc: Dennis P. Vroman
>  Sent: Friday, January 12, 2007 12:32 PM
>  Subject: Re: [obol] auto focus cameras
>
>
>
>
>   To maximize your chances in a situation like this .......... depending 
> on
> what equipment you have and what the light conditions are .......... I 
> might
> suggest you'd start by turning off autofocus and manually setting the 
> focus
> to infinity.  Then set a high ISO and set your camera to aperture 
> priority,
> f8 or higher.  Leave your camera on (if it has a "sleep" mode that's still
> faster than turning it on).  Then twirl and shoot .......
>
>
>  No doubt there have to be compromises because of weight and cost, which
> may explain their troubles.  Your shirt-pocket digital point-and-shoot 
> isn't
> going to be ready for a shot for a couple of seconds.  But they were
> carrying an "SLR" which probably means a "DSLR" -- digital single lens
> reflex.  There's nothing wrong with Kodak cameras (that I know of).  It's
> just that they were apparently not set up for a maximum chance at success 
> in
> a twirl-and-shoot situation .............
>
>
>  oschmidt at att.net
>  Friday, January 12, 2007
>
>
>
>
>
>
>
>
>
>
>  On Jan 12, 2007, at 12:12 PM, Dennis P. Vroman wrote:
>
>
>    Having a Kodak digital camera (not one of the professional ones), I can
> say that even it doesn't obtain the "Kodak moments" with all photos 
> either.
> It's an auto focus and trying to get it to focus on that little bird in 
> back
> of and surrounded by dominate foreground vegetation is pretty tough to
> accomplish.
>
>    Any suggestions on this Owen?  ...other than a better camera that is.
>
>    Dennis
>
>
>
>
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