For fill flash, you don't need the full brightness of the flash, so you
can get away with longer distances, but yeah the flash is not very
powerful in FP mode.
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On 7/23/12 8:06 PM, "Chuck Norcutt" <chucknorcutt@xxxxxxxxxxxxxxxx> wrote:
>It appears to me that the flash is (for all practical purposes) unusable
>in full sun. For example, a full sunny 16 exposure for ISO 160 would be
>1/160 at f/16 or 320 at f/11. Interpolating for these shutter
>speeds/apertures from your table it appears the max range would be well
>under 1 meter.
>
>Chuck Norcutt
>
>
>On 7/21/2012 2:53 AM, priit@xxxxxxxxx wrote:
>>
>>
>> On Fri, 20 Jul 2012, usher99@xxxxxxx wrote:
>>
>>> I for one would be interested in looking at that table if it is easily
>>> available. Too bad there wasn't a good way at the time to meter the
>>>high
>>> speed sync fill and automate it.
>>
>> Sure, here's a table I had on a piece of paper. It's for ISO 160 film.
>>
>> 2.5 4 5.6 8 11 16
>> ---------------------------------------
>> 60 7 4.5 3 2.2 1.5 1
>> 125 5 3.2 2.4 1.7 1.2
>> 250 3.5 2.5 1.7 1.1
>> 500 2.5 1.6 1
>> 1000 1.7 1
>>
>> The distance unit is meter/metre. I think these numbers might be good
>> enough for an overcast day in the open, but when there are deep shadows
>>or
>> little ambient light available, one might want to start reading one or
>>two
>> columns to the right. Anyway, it should illustrate the idea.
>>
>> Priit.
>>
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