On 11/2/2015 7:32 AM, bj@xxxxxxxxxxxxxxx wrote:
Thank you all for recommendations about cameras and computers.
And
Chuck just provided information about viewing screens and systems which
will help me replace my destroyed excellent CRT screens.
I have one
further question, and it is due to me wanting to use legacy lenses.
Moose wrote
"I recommend you consider the OM-D Em-5 II. Cheaper than
the OM-1 and at this time, in my opinion, a better camera. The IBIS is
astonishingly better than earlier OM-Ds and the High Resolution mode is
amazing and might be useful for your still lifes."
and somebody else
( I don't remember who, sorry) said that the OMD - 1 has two focusing
modes which resulted in significantly better results with legacy lenses.
Comment / advice on this seeming conflict will be much appreciated.
It all hinges on whether one has or intends to have and use older, 4/3 lenses. The E-M1 has on the sensor special pixels
that allow phase detect autofocus, in addition to contrast detect AF. This is specifically to accommodate the old 4/3
lenses, which were designed electronically and mechanically for PDAF, and are slow to achingly slow on the CDAF only
OMDs and Pen bodies.
I had assumed that all you old lenses were destroyed along with the cameras, so could see no point in the PDAF of the
E-M1. µ4/3 lenses are designed to use with CDAF, and the additional focus mode doesn't speed them up; they are already
fast. (It's possible that the CDAF may improve follow focus of fast moving objects even on m.Zuikos. I read that
somewhere, but don't know if it's true, the internet being what it is.)
I'm not sure what you mean by legacy lenses. IF you plan on acquiring 4/3 lenses to use with an adapter on OMDs, the
E-M1 would be better. As the m.Zuikos are all smaller and lighter than their equivalent speed predecessors, and
optically as good or better**, that's not a plan I would recommend or follow.
I also don't much like the idea of the 4/3=>µ4/3 lens adapter. Every once in a while, both with my previous Canons and
with my µ4/3 bodies, a lens will not operate properly. Pulling it off and wiping the contacts on lens and camera with a
microfiber cloth I always carry fixes the problem. By adding an adapter, the number of contacts points is doubled and
two things have to be taken off and juggled to clean them all.
For manual focus legacy lenses, there is no AF anyway***, and the adapters have no electrical contacts, so they are the
same on any µ4/3 body.
Micro Moose
* OK, there's an exception to everything. The first version of the m.Zuiko 14-42 was not fully CDAF ready, and focused
slowly.
** Yes, of course there are folks who swear by a particular 4/3 lens, but objective confirmation of superiority is hard
to come by, and at least two of the most praised are not ones you are likely to want, the 7-14/4 and 50-200/2.8-3.5 SWD.
Both have recently had m.Zuiko replacements that may change those old opinions. As to the original 14-54 (or the II?), I
love the m.Zuiko 12-50, which adds greater WA, built-in macro and weather sealing in a smaller, lighter package with
excellent optical quality.
*** Do Metabones Speed Booster adapters and their clones add AF to MF lenses on
µ4/3. I don't care enough to check.
--
What if the Hokey Pokey *IS* what it's all about?
--
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