From: Alfred Molon <alfred_molon@yahoo.com>
Subject: Re: DSLR resolution suffers by about 20% when electronic shutter not used with mirror up
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From: Alfred Molon <alfred_molon@yahoo.com>
Newsgroups: rec.photo.digital
Subject: Re: DSLR resolution suffers by about 20% when electronic shutter not used with mirror up
Date: Sun, 28 Jan 2018 06:41:20 +0100
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In article<p4j44t0gah@news6.newsguy.com>, PeterN says...
> 
> On 1/27/2018 6:28 PM, Eric Stevens wrote:
> > On Sat, 27 Jan 2018 10:57:29 +0100, Alfred Molon
> ><alfred_molon@yahoo.com> wrote:
> > 
> >> In article<oagn6d9eg96l70cbhee8jj5jfnqlbdnt6q@4ax.com>, Eric Stevens
> >> says...
> >>>
> >>>> With the E-M1 II in high res mode (80 MP) it's not sufficient to disable
> >>>> the mechanical shutter (i.e. use the electronic shutter). You need a
> >>>> wireless shutter release and you also have to disable the autofocus,
> >>>> because the AF motor movements in the lens generate vibrations.
> >>>
> >>> And don't forget the concrete foundations.
> >>
> >> Doesn't have to be concrete. Can by anything, also sand or mud, as long
> >> as it doesn't move.
> > 
> > " ... as long as it doesn't move"  That's why I always use concrete.
> > 
> 
> I've seen idiots set up a tripod on boats.

It eliminates some motion (camera shake due to shaking hands).
-- 
Alfred Molon

Olympus E-series DSLRs and micro 4/3 forum at
http://tech.groups.yahoo.com/group/MyOlympus/
http://myolympus.org/ photo sharing site