Fill In Flash

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wally - 02 Jul 2005 19:15 GMT

I have a Manual 35 mm pentax camera sla.
My flash is automatic with manual option image cz-55.

I don't understand the fill in flash system.

The camera flash sync. setting is 1/50th second which would be an
overexposed picture. The light meter reading I get outside on a sunny
day for 100 speed film is 1/250th sec. and f16 which is the lens
minumun opening. Any help would be appreciated.

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dadiOH - 03 Jul 2005 14:59 GMT

> I have a Manual 35 mm pentax camera sla.
> My flash is automatic with manual option image cz-55.
[quoted text clipped - 5 lines]
> day for 100 speed film is 1/250th sec. and f16 which is the lens
> minumun opening. Any help would be appreciated.

Which is why focal plane shutters are lousy for flash work.

BTW, either your scene is very light or your meter is off by about a
stop.

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dadiOH
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Dean Van Praotl - 04 Jul 2005 19:40 GMT

The (usually) correct exposure for sunlit scenes with 100 speed
film would be 1/125 @ f/16.

Your basic options would seem to include:

1. An f/stop smaller than f/16, allowing you to use a slower
shutter speed.
2. Slower film.
3. Use a Neutral Density filter.

"wally" <j4h@canada.com> apparently said:

>I have a Manual 35 mm pentax camera sla.
>My flash is automatic with manual option image cz-55.
[quoted text clipped - 5 lines]
>day for 100 speed film is 1/250th sec. and f16 which is the lens
>minumun opening. Any help would be appreciated.

Reply to this Message