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[OM] Re: Bounce Grip and the T32

Subject: [OM] Re: Bounce Grip and the T32
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Mon, 23 Jun 2008 17:34:44 -0400
Piers' answer to the first question on increasing the guide number is 
correct.  However, my experiments with T-32s and a flash meter show 
quite clearly that total flash power output is quite voltage level 
dependent.  For example, fresh alkaline batteries at 1.5 volts will 
produce 1/2 stop greater flash output than fresh NiMH batteries at 1.2 
volts.  But, after 20-30 full power pops the voltage on the alkalines 
has already dropped to about 1/3 stop less power than fresh batteries. 
So, if 4 alkaline C batteries allow you to hold the voltage level for a 
much longer period then, yes, you will effectively get a higher guide 
number.  That said, no T-32 I have ever tested (5 of them) has met the 
factory stated guide number whether powered by alkalines, NiMH or high 
voltage battery pack (330 volts).  I suspect that the ideal solution 
would be a 5 battery NiMH pack putting out lots of current along with a 
true (and fairly steady) 6 volts.  I've never owned a Metz flash but 
seem to recall that they have provision for 5 NiMH cells.  Getting an 
additional half stop is a big deal in flash land.

T-45 and high speed synchro?  Better get a flash bulb :-)

Dr. Flash


Piers Hemy wrote:
> Here's my thoughts, in order:
> No
> Yes
> No 
> 
> Thanks for the on-topic post!
> 
> --
> Piers 
>              
> 
> -----Original Message-----
> From: olympus-owner@xxxxxxxxxx [mailto:olympus-owner@xxxxxxxxxx] On Behalf
> Of AG Schnozz
> Sent: 23 June 2008 18:38
> To: olympus@xxxxxxxxxx
> Subject: [OM] Bounce Grip and the T32
> 
> 
> Did the BG2 actually increase the GN of the T32?  Or was it strictly a
> recycle-time improvement?
> 
> Also, does the T45 do high-speed synchro-flash with the OM-4T?
> 
> AG

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