william_shepard1

Can the Zone system be used for transparency film? I seem to recall reading that one can use it, but instead of a zone being one stop, make it a half a stop, ie: zone vii would be like zone vi, zone vi would become zone v and a half.(due to the reduced scale of the film vs b&w.

<p>

Do you all concur with this? Does it apply only to transparency or to color print film as well?

<p>

Or did I get it mixed up and does it apply to color print and not to transparency?

<p>

I can't remember where I read it, Adams, or Picker, or some other book on the zone system.

<p>

I realize that development control is limited, too.

<p>

Bill Shepard

I just got at Sunpak power pak with a 510vt nicad battery. I was difficult to find someone at Tocad that knew much about it to answer these questions to my satisfaction>>>>>>

<p>

Does the nicad 510 volt have a memory and do you let it go comepletely down before recharging, or can you charge it after a partial use without it developing a memory? How long can I expect it to last over it's lifetime?

<p>

Is the 510 volt drycell battery any better or worse, and does it need charging too or do you use it till it expires and buy a new one, like a lithium or alkaline?

<p>

Do you have a preference, and do you have anecdotal experiences to relate? Thanks for input! Bill Shepard