Re: Latest model of Canon cameras

"werdan" <footrotdog@[EMAIL PROTECTED]
> wrote:

> 
> "Lobby Dosser" <lobby.dosser.mapson@[EMAIL PROTECTED]
> wrote in message 
> news:DxbQi.2844$I22.1733@[EMAIL PROTECTED]
>> Randall Ainsworth <rag@[EMAIL PROTECTED]
> wrote:
>>
>>> In article
>>> <47106118$0$23829$5a62ac22@[EMAIL PROTECTED]
>,
>>> werdan <footrotdog@[EMAIL PROTECTED]
> wrote:
>>>
>>>> I wonder why Canon doesn't make use of the pellicle mirror
>>>> technology in their DSLRs that
>>>> they used in the EOS RT.
>>>
>>> Because it didn't work well in film days?
>>>
>>
>> Why?
> 
> In film days, losing a stop meant shooting 200 instead of 100 ISO film
> or 400 instead of 200.  The noticable grain jumped up significantly
> each increase and different films also rendered colours slightly
> differently. 

Thanks for the answer. I thought it might be that and just presumed I'd 
use faster lenses or faster film. For the uses you describe, I don't see 
that as a problem.

> Bbeing low noise and low vibration meant the RT was
> perfect for indoor concerts/recitals etc. where you are not trying to
> be obtrusive. The 'no blackout' meant it was good for following action
> in s****t. Except these situations also require you to get the most out
> of your film sensitivity and 1 stop was critical. The fact that there
> is little discernible difference between ISO100,200 and even 400 on
> the latest Canon sensors shows that this isn't really a limitation
> anymore. Granted it would be a backwards step in sensor sensitivity
> but they way sensor development has been going, it would only be
> tem****ary one. 
> 
> 
>