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[OM] Re: Best Flash for the E-series

Subject: [OM] Re: Best Flash for the E-series
From: "John Hermanson" <omtech@xxxxxxxxx>
Date: Wed, 12 Oct 2005 09:27:55 -0400
T45 has 2 flash tubes and quite literally, the electronics of 2 - T32s 
inside the head.

John Hermanson
Camtech Photo Services, Inc.
21 South Lane, Huntington, NY 11743
631-424-2121  |  omtech@xxxxxxxxx
              www.zuiko.com
Factory Trained OM Service since 1977
__________________________________
----- Original Message ----- 
From: "Geilfuss Charles" <Charles.Geilfuss@xxxxxxxxxxxxxxxxx>
To: <olympus@xxxxxxxxxx>
Sent: Tuesday, October 11, 2005 12:42 PM
Subject: [OM] Re: Best Flash for the E-series


>
> Thanks Mark. Obviously more complicated than I realized.
>
> Charlie
>
> -----Original Message-----
> From: olympus-owner@xxxxxxxxxx [mailto:olympus-owner@xxxxxxxxxx]On
> Behalf Of Mark Dapoz
> Sent: Tuesday, October 11, 2005 11:53 AM
> To: olympus@xxxxxxxxxx
> Subject: [OM] Re: Best Flash for the E-series
>
>
> On Tue, 11 Oct 2005, Geilfuss Charles wrote:
>>
>> Mark,
>> Why wouldn't the FL-50 at least equal the T45 since the GN's are 50m
>> and 45m respectively?
>
> The GN measurements are calculated differently for each flash, you can't
> compare them directly.
>
> For the T-45: GN45 with an angle of coverage of 53deg horizontal, 74deg
>              vertical (equivalent to an OM 24mm lens)
>
> For the FL-50: GN28 with an angle of coverage of 78deg horizontal, 61deg
>               vertical (equivalent to an E-system 12mm lens)
>
> Since the FL-50 head has a built in zoom adapter, the GN50 is only 
> achieved
> at the tele end of 85mm.  If the T-45 had a zoom head to adapt it to this
> angle of coverage then the GN would be significantly higher than 45. 
> After
> using both flashes I'd say the T-45 is close to double the power of an 
> FL-50.
> Recycle time is also significantly faster on the T-45.
> -mark
>
>
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