Archived posting to the Leica Users Group, 2014/02/20

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Subject: [Leica] OT - Sony Alpha 7R
From: lew1716 at gmail.com (Lew Schwartz)
Date: Thu, 20 Feb 2014 13:14:59 -0500
References: <CAH1UNJ3rpUAt8xxnMJdNGC9L_ncq8-ogF2Z1s_xSyqh9yHtR6Q@mail.gmail.com> <1442780B-17BA-4304-953A-58140190E65F@icloud.com> <CAFfkXxtG=Bn6-6KZKazX04TjwgLAeLOW77JZCWEoXSEB97DpJg@mail.gmail.com> <CAJ3Pgh6T-GGohk5c8+wO+TZkFo6SM+h0UpJswVyN3booNh3FVA@mail.gmail.com> <CAFfkXxs=W_0Ps1tUiKRjjdj0yFQXkJwuPOMQu1QiDbZr7X6+hA@mail.gmail.com> <CAJ3Pgh4Gtzd3MfbwwoMk-Ab9rMbGQq8X+AXL=dEMRySgHO9yPw@mail.gmail.com> <0b1301cf2e49$9fe66300$dfb32900$@verizon.net>

As of now, there are only 2 native lenses.
The aperture is constantly adjusting in auto exposure modes.  This gives
the camera one less thing to do when you press the shutter. The vf adjusts
for changing light levels.
On Feb 20, 2014 9:40 AM, "Frank Filippone" <red735i at verizon.net> wrote:

> Paul... is this true for all native A7R lenses?  All AF is done at
> aperture?  Ditto the A7?
>
> Sequence as I understand it then is....
>
> Push button to shoot
> Lens stops down
> AF happens
> Shutter goes click
>
> AI this true in all focusing modes?
>
> Note non-native lenses work this way as the aperture mechanism is not
> engaged in any way by the camera... the lens is always stopped down to
> taking aperture...
>
> Frank Filippone
> Red735i at verizon.net
>
> \That may be one reason why they use focusing at the stopped down aperture.
>
>
>
> _______________________________________________
> Leica Users Group.
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>


Replies: Reply from mark at rabinergroup.com (Mark Rabiner) ([Leica] OT - Sony Alpha 7R)
Reply from sonc.hegr at gmail.com (Sonny Carter) ([Leica] OT - Sony Alpha 7R)
In reply to: Message from jayanand at gmail.com (Jayanand Govindaraj) ([Leica] OT - Sony Alpha 7R)
Message from gwpics at icloud.com (Gerry Walden) ([Leica] OT - Sony Alpha 7R)
Message from sonc.hegr at gmail.com (Sonny Carter) ([Leica] OT - Sony Alpha 7R)
Message from roark.paul at gmail.com (Paul Roark) ([Leica] OT - Sony Alpha 7R)
Message from sonc.hegr at gmail.com (Sonny Carter) ([Leica] OT - Sony Alpha 7R)
Message from roark.paul at gmail.com (Paul Roark) ([Leica] OT - Sony Alpha 7R)
Message from red735i at verizon.net (Frank Filippone) ([Leica] OT - Sony Alpha 7R)