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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