Comparing Olympus 4/3lenses to FX "Full Frame" offerings

Started 10 months ago | Discussions thread
Ian Stuart Forsyth
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Re: Oh?
In reply to Great Bustard, 10 months ago

Great Bustard wrote:

Ian Stuart Forsyth wrote:

Great Bustard wrote:

dave gaines wrote:

This thread and my OP is about the lens options, not equivalency. I'm comparing the best HG and SHG Olympus lenses to what is available from Nikon in FX. I'm clearly writting about finding Nikon f/2.8 that will perform as well as Olympus HG and SHG lenses. I'm comparing the best lenses of one brand to the best of another.

OK. But you said:

"Don't bother looking for anything like a 50-200 mm f/2.8-3.5 in FX for close to the same price. You'll need the 200-400 mm f/4 for US$6750."

No, the 200-400 / 4 on FF is like a 100-200 / 2 on 4/3, not like a 50-200 / 2.8-3.5. The 70-300 / 4-5.6 on FF (equivalent to a 35-150 / 2-2.8) is a lot more like a 50-200 / 2.8-3.5 on 4/3 than is the 200-400 / 4 VR.

The 200-400 is more like the 90-250 2.8 and the odd thing is they are nearly the same weight and cost go figure

Imagine that -- roughly the same focal range and roughly the same maximum aperture diameters (400mm / 4 = 100mm, 250mm / 2.8 = 89mm) make for nearly the same weight and cost. Who'd have thunk it?

More seriously, it doesn't always work out so cleanly, as there's a lot more to it than just focal length and aperture diameter, but it was a nice coincidence, nonetheless.

Nikon 300 F4 to Zuiko ed 150 F2 to canon 300 F4

Pentax 50-135 F2.8 to a canon 70-200 F4 to Nikon 70-200 F4 to Zuiko ED 35-100 F2 hey wait a min the FT is heaver what’s up with that, must be because of going below 50mm

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