[rollei_list] Re: Richard the K (was: Old film)

On 30-May-05, at 5:18 PM, Thor Legvold wrote:

> Richard, I don't know where you found all of this. You're a real  
> gem :-)

Darn right. If Richard lived in Japan they'd have called him a  
"Living National Treasure"!

Cheers.


+++++



> On 30. mai. 2005, at 19.00, Richard Knoppow wrote:
>
>> I don't know why Kodak has been trying to kill off Kodachrome but  
>> they have for a long time. Probably supporting the special  
>> processing is the problem. Kodachrome evidently has excellent dark  
>> storage properties while Ektachrome type films have better  
>> resistance to fading under projection. I've seen quite a lot of  
>> Kodachrome that still looks pristine after 60 years. I am not sure  
>> why the dyes are so stable. Kodachrome differs from more recent  
>> color films in that the substances which form the dyes are in the  
>> developing solutions rather than in the emulsion layers. This may  
>> offer a wider range of dyes that can be used or, perhaps its  
>> something to do with residues of some sort in the emulsion layers.  
>> [... etc. ...]






















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