Archived posting to the Leica Users Group, 1999/09/10

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Subject: RE: [Leica] Galen Rowell
From: "Kotsinadelis, Peter (Peter)" <peterk@lucent.com>
Date: Fri, 10 Sep 1999 10:58:44 -0700

InfinityDT@aol.com wrote:

>>In a message dated 9/10/99 11:40:17 AM Eastern Daylight Time, 
>>peterk@lucent.com writes:
>>
>><< Sets it to -1.7 from ambient, and Nikon's flash system 
>> is still magical compared to
>> anything else out there.  
>> 
>> Peter K >>
>
>Some photographers (John Shaw for example) set their Nikon flash to 
>underexpose 2/3 stop from whatever fill ratio the computer picks (usually a

>range between 1 and -1).  This is different from Rowell's technique.  The
way 
>Galen uses fill flash (constant -1.7-stop ratio) can be done with any
camera 
>and flash setup including non-TTL with thyristor flash like a Vivitar 283.

>The key is to be able to "trick" the flash into thinking you're using a 
>faster ISO film.  With some TTL cameras this means forsaking auto-exposure 
>and going on manual.  That's where the Nikon-type system is more 
>user-friendly than some.  A friend told me he can set his Metz 40
MZ-whatever 
>to underexpose (fill) with his R7, so I imagine the R8 would do this as
well. 
>I haven't tried them myself. 
>
- ----------------------------------------------------------------------------
- ------

Yes, you can set some fill flash using MOST flashes, but not all and not to
the same degree. 
The Metz has a very good way of handling exposure which you can set but in
full stops, Vivitar 283/5 only has 4 auto settings.  This may pose a problem
with these external non-TTL flash units which only allow you these specific
settings. 
Example: 	You read F11 ambient light and want a 1.5 underexposure from
the flash for fill.
	   	If you use a Metz you can only select F8 or F5.6, with the
Vivitar F8 or F4.
The only Flash I am aware of that can handle specific 1/2 or 1/3 auto
setings is the Q-Flash.
		
Cameras such as the Nikon F and N series provide flash compensation that
very easily handles something like the -1.7EV (-1 2/3 stops rounded) fill
flash that Galen uses.  

I believe the Leica R7 and R8 also provide for this but earlier models may
not.
I am sure a LUGgite R-type (or is that type R?) will be able verify this.

Peter K