Limitations of m43 in bright light. OMD and Leica 25mm f1.4

Started Apr 14, 2013 | Discussions thread
CrisPhoto
Contributing MemberPosts: 659Gear list
Like?
Re: Limitations of m43 in bright light. OMD and Leica 25mm f1.4
In reply to Alumna Gorp, Apr 15, 2013

Alumna Gorp wrote:

A polarising filter can be good as well if you already have one.

Yes, that's a good idea.

I came to the same conclusion when  I faced the "ISO 200" issue.

My workaround:

  • Attach the polariser filter which gains 1 stop
  • over expose +1EV and use RAW for another stop

Let me explain over expose: The OM-D has about 400% over expose capability. Other cams like my old Minolta have only 200%. So by setting exposure to +1EV I don't lose much but get the aperture down from 2.0 to 1.4.

By the way, the over-exposure capability is the reason why DXO says that (compared to max. sensor saturation) the cam would have about ISO 100.

But this is not how ISO is measured, compared to 50% grey in OM-Ds JPG output the cam has ISO 200 correctly.

Anyhow, by over-exposing (which does not hurt in RAW) and by using the polariser i get the aperture open and therefore I hesitate to buy a ND filter. If I would, I would buy a ND64 or so for long exposures ...

-- hide signature --

OM-D + PL25, O45, O75
O9-18, P12-35, O40-150

 CrisPhoto's gear list:CrisPhoto's gear list
Olympus E-M1 Panasonic Lumix G Vario 7-14mm F4 ASPH Olympus Zuiko Digital ED 50-200mm 1:2.8-3.5 SWD Olympus Zuiko Digital 1.4x Teleconverter EC-14 Olympus M.Zuiko Digital ED 40-150mm 1:4-5.6 R +6 more
Reply   Reply with quote   Complain
Post (hide subjects)Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark post MMy threads
Color scheme? Blue / Yellow