A few snaps with Sony FE 70-200mm f4 and a6000

Started Jun 16, 2014 | Discussions thread
EinsteinsGhost Forum Pro • Posts: 11,977
Re: A few snaps with Sony FE 70-200mm f4 and a6000

spacemn wrote:

dmanthree wrote:

stoppingdown wrote:

NeilJones wrote:

That's a good point, and it's my only doubt about that lens. That's why I'm really curious about the IQ of the 35-100.

I shoot the GH3 with that lens, and it's excellent. While I can't post any side by side examples, I can vouch for the quality of the Panny lens. And it is really small and light, especially when commpared to the FF equivilants.

However, follow-focusing is the weakness of any m4/3 can I've ever used. CDAF just can't match PDAF for continuous focusing. I haven't shot the new Olympus, though.

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You do realize that a FF 'equivalent' lens to the Pana 35-100mm f/2.8, would be a 70-200mm f/5.6, do you know any 70-200 f/5.6 FF lenses since you are doing a size comparison? I would assure you that such a lens would be very similar in size to the current Pana 35-100mm f/2.8.

Uh.....no. F2.8 is f2.8, as far as light gathering ability goes. Depth of field is different, yes. But 2.8 is 2.8 when it comes to exposure calculations, so I compare the 35-100 2.8 to anyone's 70-200 2.8.  If I wanted to compare slow lenses, I'd compare the Panny 40-150, which is the closest to compare, until Pannys new 35-100 is released later this year. It's designed to compliment the GM1, and it's really, really tiny.

m4/3 lenses are smaller, of that there is no doubt.

Such comparisons come with their caveats. One tendency is to compare size of m43 35-100/2.8 to FF 70-200/2.8, based on FOV and exposure values but conveniently ignoring DOF aspect.

The other caveat is that 70-200/2.8 (or f/4, as in this case) are also used on APSc bodies where they are no longer m43 35-100 equiv but 55-150 m43 equiv.

All you end up arguing with exposure argument is that you can use ISO 3200 on m43 camera with 35-100/2.8 as opposed to ISO 3200 with 70-200/2.8 on FF (that is assuming ISO 3200 isn't overstated and provides same exposure values).

In case of OP's presentstion though, arguing about higher ISO is moot as all shots were done in good light (but only a6000 set at tele).

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