PCACala@xxxxxxx wrote:
> Hi all:
>
> I should have triple checked my text. I wrote:
>
> < the 80 mm Zuiko performs better at infinity than a 90 mm macro that focus to
> infinity, but goes to 1:1 with adapter >
> Contrast control in slide copying can be achieved by pre-flashing the special
> slide copying films. That gives a low level fogging exposure to the shadows
> in your original slide. The fog exposure plus slide exposure will help keep
> the shadows from blacking out. The technique is covered in books about slide
> copying. It is akin to fogging at Zone 1 or Zone II in books about the Zone
> System. Slide copies like the Bowens Illumitron (if I recall the name
> correctly) have circuitry to pre-flash the emulsion.
gary,
this is another reason why they should upgrade the OM bodies to have a simple
swtich that will make double exposures easier to do. i wonder if john h. can rig
up an upgrade that will make this possible for the OM2/3/4. my OM's will be
first
in the shop if this is possible. john are you reading this?
francis
>
>
> Gary Reese
> Las Vegas, NV
>
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