[Oradlist] CCD vs. E/F-speed film

[Stuart C. White]

Thanks Allan. 

Survey data does indeed points to a broad range of exposure doses with film.
I do, however, have a particular interest in knowing about peoples
experience in changing from E/F ­speed film to CCD sensors in terms of
exposure time. 

Best,

Stu




On 8/3/10 11:06 AM, "Allan Farman" <agfarm01 at louisville.edu> wrote:

> Hi Stu: The range of exposures that will effect an acceptable image with
> photostimulable phosphors and CMOS sensors is wide so it is possible for
> practitioners to expose the image more than with film, use the same exposure
> as film, or even reduce dose with these systems. Excellent latitude means that
> poor image quality from exposure is rare with modern digital sensors, but
> could indeed lead to patients being more exposed than is necessary. Studies
> with film based systems tend to show a remarkable range of actual exposures
> for specific dental radiography tasks.
>  
> Best wishes,
> Allan 
>  
>  
> Allan G. Farman, BDS, PhD, MBA, DSc, Diplomate ABOMR
> 
> Prof. Radiology & Imaging Science
> Univ. Louisville School of Dentistry: SUHD
> 501 South Preston Street,
> Louisville, Kentucky 40292, USA
> 
> Tel: +1(502) 852.1241
> Fax: +1(502)852.1626
> 
>>>> >>> "Stuart C. White" <swhite at dentistry.ucla.edu> 8/3/2010 1:30 PM >>>
> Hi All,
> 
> Is there any general consensus regarding the relative speeds of modern CCD
> sensors and E/F-speed film? For those of you who who have made the switch what
> is your experience?
> 
> Thanks,
> 
> Stu
> 
> 
> 
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