Barry -- The focal length multiplies, but the aperture stays the same... so
the 150/2.0 digital E-1 Zuiko offers the equivalent angle-of-view of a 300mm
full-frame 35mm lens, but the aperture is still f2.0.
Further, the apertures on your OM lenses used on the E-1 work the same way,
so if you have, for instance, and OM-Zuiko 100/2.0 that 'behaves' on the E-1
as a 200/2.0 lens. Of course, Olympus says you can only use certain
apertures when using OM lenses on the E-1, but I'd be checking it out in
some dark venues...
--
Jim Brokaw
OM-'s of all sorts, and no OM-oney...
on 2/28/05 3:28 PM, Barry B. Bean at bbbean@xxxxxxxxxxxxxx wrote:
> Will a digital Zuiko 150/2 be comparable to a 35mm 300/4, or does the 2x
> factor only apply to focal length? In other words, will the 150/2 on my E-1
> be a stop
> faster or a stop slower than my 300/2.8 on my OM-4T?
>
> BB
>
> --
> Barry B. Bean
> Bean & Bean Cotton Company
> Peach Orchard, MO
> www.beancotton.com
> www.beanformissouri.org
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