For the SuperProgram:
Aperature ring must be on A.
Program or shutter priority only, by implication.
Then you see aperature and shutter speed in display.
Robb may be crusty, but his memory is intact.
Wink.-Lon
William Robb wrote:
..I sold both my Super Programs some
time ago,
- Original Message -
From: Nenad Djurdjevic
Subject: Re: A-lenses aperture indication
I wrote:
I had an SFXn and the reason it didn't display the aperture in
the
viewfinder was because it had no means of doing so in *any* mode.
Alexander wrote:
I know this. I meant to say
William Robb wrote:
- Original Message -
From: Nenad Djurdjevic
Subject: Re: A-lenses aperture indication
I wrote:
I had an SFXn and the reason it didn't display the aperture in
the
viewfinder was because it had no means of doing so in *any* mode.
Alexander wrote
: A-lenses aperture indication
I have wondered the same thing as Nenad Djurdjevic.
Why doesn't my Pentax MZ-S show aperture indication in viewfinder or on
the
data recorded on to the film?. Is my MZ-S faulty or are my A-lenses?
Jens Bladt
mailto:[EMAIL PROTECTED]
http://hjem.get2net.dk/bladt
This is correct. I have a MZ-5n and I understand it is normal
behavior. It would theoretically be possible for the body to compute
the aperture based on the stop down coupler and the A contacts (which
give max/min aperture info). However, I believe this is not done
because the stop down coupler
Nenad,
as explained below, the seventh pin makes the difference between 'A' and 'F' in
this respect.
http://www.bdimitrov.de/kmp/ has all this and much more - not quite easy to
find, though. From the main page you select 'Technology' on the left, then
'K-Mount Evolution, Features and Operation'.
William Robb wrote:
When the lens is off A, the electrical contacts
are disabled, and the
lens has no electrical communication at all with
the camera.
It's not just AF cameras. The Super Program is the
same way.
This is right only for A-lenses. When the aperture
ring is set off A the
My MZ-5N finder shows lens aperture setting for all 'manual' and 'A'
aperture ring positions, for both SMCP-A 50/1.7 and SMCP-FA 28-70/4
Jim
www.jcolwell.ca
What even in manual and aperture priority modes?
John
John Whittingham
Technician
-- Original Message ---
From: Jim Colwell [EMAIL PROTECTED]
To: pdml [EMAIL PROTECTED]
Sent: Tue, 15 Jun 2004 07:49:15 -0300
Subject: Re: A-lenses aperture indication
My MZ-5N finder shows lens
The very same question was asked in the past, and yes, it is technically
possible to make a KA or later camera which can display the chosen aperture
with 'A' lens when it is not set to 'A'. I found this out when I was using
my Metz 40MZ3i flash with M135/3.5 (masked the mount to simulate 'A'
correction, sorry: the SMCP-A 50/1.7 lens shows aperture setting in the
MZ-5N finder for the 'A' position, but not at manual settings.
The SMCP-FA 28-70/4 lens shows aperture in the MZ-5N finder for both 'A' and
manual settings.
I'll make a quick table of some other results and sent it soon.
here is a summary of some different lens/body combinations
A = lens aperture ring set to 'A' position
M = lens aperture ring set to a manual position
Y = camera shows aperture setting in finder
N = camera does not show aperture setting in finder
SuperProgram body
SMCP-FA 28-70/4 A:Y
aperture indication
William Robb wrote:
When the lens is off A, the electrical contacts are disabled, and the
lens has no electrical communication at all with the camera.
It's not just AF cameras. The Super Program is the same way.
Having switched to digital and no longer having any film camera
PROTECTED]
http://hjem.get2net.dk/bladt
-Oprindelig meddelelse-
Fra: John Coyle [mailto:[EMAIL PROTECTED]
Sendt: 15. juni 2004 08:22
Til: [EMAIL PROTECTED]
Emne: Re: A-lenses aperture indication
Jens, I only have the A70-210/4 zoom, and it shows the aperture in the Auto
setting only. Off auto
On the AF330FTZ and AF360FGZ, the usable scale distance varie when
aperture varie
Jens Bladt [EMAIL PROTECTED] wrote:
I guess my outfit isn't faulty afterall. I just find it funny, that this
only works with autofocus lenses (this doesn't really have anything to do
with focusing(!). I thought that A and FA lenses had the same KAF-mount
contacts. Apparently they don't!!
The FA
Alexander wrote:
Apart from (the) 7th digital read-out pin there is
another difference between A and F/FA lenses. The A
contact of the F/FA lenses does not retract when the
aperture ring is set off A. So all contacts seem to
remain connected even when the lens is set not to A.
Although
I thought that A and FA lenses had the same KAF-mount
contacts. Apparently they don't!!
F/FA lenses have a chip inside them while A lenses don't. They look the
same, but work differently.
Regards,
Alan Chan
http://www.pbase.com/wlachan
Alexander wrote
Interestingly, as far as I remember, also with F/FA
lenses the SFX does not show the aperture number on
its display when the lens is off A , while newer
cameras do.
I had an SFXn and the reason it didn't display the aperture in the
viewfinder was because it had no means of
Scott wrote:
It would theoretically be possible for the body to compute
the aperture based on the stop down coupler and the A contacts (which give
max/min aperture info).
Also, top cameras of the day (mx, lx, kx and k2
before them) had an optical system to show the aperture in the viewfiner
I have been wondering why Pentax AF cameras (crippled KAF mount excepted)
will not show the aperture setting in the viewfinder when the aperture ring
is set to other than A.
It seems to me that A lenses provide enough information to the camera
through the electronic contacts and aperature
- Original Message -
From: Nenad Djurdjevic
Subject: A-lenses aperture indication
I have been wondering why Pentax AF cameras (crippled KAF mount
excepted)
will not show the aperture setting in the viewfinder when the
aperture ring
is set to other than A.
It seems to me
Nenad Djurdjevic asked:
I have been wondering why Pentax AF cameras (crippled KAF mount excepted)
will not show the aperture setting in the viewfinder when the aperture ring
is set to other than A.
It seems to me that A lenses provide enough information to the camera
through the electronic
On Mon, 14 Jun 2004 [EMAIL PROTECTED] wrote:
Both my PZ-1 and my ZX-5n will show the aperture setting in the
viewfinder if the aperture ring on an autofocus lens is set to other
than A.
AF lenses are different than the A lenses. The AF lenses have an
extra contact which digitally communicates
- Original Message -
From:
Subject: Re: A-lenses aperture indication
Both my PZ-1 and my ZX-5n will show the aperture setting in the
viewfinder if
the aperture ring on an autofocus lens is set to other than A.
They won't report the aperture on an M lens, and I don't have a
manual
-
Fra: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sendt: 15. juni 2004 06:59
Til: [EMAIL PROTECTED]
Emne: Re: A-lenses aperture indication
Nenad Djurdjevic asked:
I have been wondering why Pentax AF cameras (crippled KAF mount excepted)
will not show the aperture setting in the viewfinder when
William Robb wrote:
When the lens is off A, the electrical contacts are disabled, and the
lens has no electrical communication at all with the camera.
It's not just AF cameras. The Super Program is the same way.
Having switched to digital and no longer having any film camera bodies I
can't
- Original Message -
From: Nenad Djurdjevic
Subject: Re: A-lenses aperture indication
Having switched to digital and no longer having any film camera
bodies I
can't check this - but I could have sworn that F and FA lenses on
an AF body
gave an aperture readout on the camera at all
William Robb wrote:
When the lens is off A, the electrical contacts are disabled, and the
lens has no electrical communication at all with the camera.
It's not just AF cameras. The Super Program is the same way.
Having switched to digital and no longer having any film camera bodies I
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