>
> > I presume it uses the same program that is inbuilt,
> > regardless of whether there is a flash attached or not. And
> > when the flash does fire, as you say, it gets treated as
> > another OTF exposure. I can't see any other way for it to operate.
>
> Assuming it's used in poor lighting conditions, invariably that will
> mean wide apertures, with very low flash power and limited DoF.
>
> When you say "another OTF exposure", I presume you mean as per OM-2(N)
> flash OFT (i.e. flash quench), rather than it closing the shutter (as
> per 4Ti with SuperFP)? In which case I agree, but it would render the
> PROGRAM mode combined with flash somewhat lame, IMO. But I agree -- I
> can't see any other way, unless it just chose a "medium" aperture of,
> say, f5.6, and tough if GN/5.6 wasn't enough distance.
>
> > BTW if your experience is anything like mine, you will get
> > very confused between the different ways the 2SP and the 3Ti
> > work with flash. I suggest you make a small cheat-sheet to
> > remind yourself what does which, to avoid acute embarrassment.
>
> It's a fair point, and it's why I'm determined to *understand* what is
> going on, rather than just learning it. If I can understand how and why,
> at least I should be able to work things out from first principles.
>
> Regards,
>
It must be said however that Program mode certainly is not the most
recommended mode for TTL flash exposure. The Program will always select the
same aperture: three stops from maximum aperture, and for very short or very
long distances this probably will be wrong.
Peter
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