Pathology or hobby?

[Dwight K. Elvey]

>From: ard at p850ug1.demon.co.uk
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>
>> 
>> I have a small collection of old cameras, all of which can (or at least  
>> could, if I made film to fit them) be used.
>
Hi Tony
 I often use a TV screen as a quick check of the shutter speed.
Even though the screen has persitence, where the electron
beam hits is brighter. If you know the sweep speed, you can
get good enough on the shutter speed.
Dwight