I think the problem will be appeared as light falloff or image cut off
at the corners.
I just got a T-Con 14B for my E-10, it has a very promising front
element (86mm!) and the mag. is 1.45x instead of 1.7x ;-) but it make
the focusing is heavy when mount on the 100/2.
C.H.Ling
"Jeffrey R. Keller" wrote:
>
> I believe C.H. made the observation that you are unlikely to have an
> aperture better than FL/Diameter where the diameter of the B300
> is about 80mm.
> -jeff
>
> ----- Original Message -----
> From: "Roger D. Key" <rdk@xxxxxxxxx>
> To: <olympus@xxxxxxxxxxxxxxx>
> Sent: Thursday, November 22, 2001 6:00 AM
> Subject: [OM] iS-3000, B-300 1.7X, Vitacon 0.45X
>
> >
> > I have just bought an iS-3000, B-300, and Vitacon 0.45X converter on *Bay;
> > I do not have it yet, as funds have to flow over to England first.
> >
> > Does anyone have any experience of the Vitacon? Apparently it gives a 15mm
> > semi-fisheye, but the seller says that it is mostly a toy!
> >
> > And regarding the B-300, can I combine it with my 85-250/f5 to give a
> > 425mm/f5, or will I get problems (apart from the length!!)?
> >
> > Roger Key, Copenhagen
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