P3D Re: flash and b & W slide film

[Brian Reynolds <reynolds@xxxxxxxxx>]

Lee wrote:
> 
> Two questions for this email:  I have a Vivitar Zoom
> Thyristor 2500.  Can anyone tell me the guide number for
> this flash?  I have contacted Vivitar, but I have not heard
> back from them.
> 

Many flashes use 10x the guide number (in meters) as the model number.
For example my Pentax AF280T has a guide number of 28 meters with ASA
100 film.  I doubt you have a flash with a guide number of 250 meters,
so my guess is that the guide number for your flash is 25 meters with
ASA 100 film.

> Also, can black-and-white slide film still be found?  I
> can't find any here in Murfreesboro, TN, but that doesn't
> mean that none exists.
> 

Agfa Scala can be found at B&H (and probably other pro camera shops).
According to Agfa it needs to be sent to a special lab for
processing.  B&H sells mailers for Scala.

Kodak makes a reversal developing kit for TMax-100 (assuming you do
your own processing) so you can get slides from TMax-100.  I've heard
that Scala can be used with reversal developing (not necessarily the
Kodak kit).

-- 
Brian Reynolds                  | "Humans explore the Universe with five
reynolds@xxxxxxxxx              |   senses and call the adventure science."
http://www.panix.com/~reynolds/ | - Edwin P. Hubble


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