manual lenses on pz1p how does it all work

2002-02-18 Thread joe

Can someone pls help me on the following questions?


1. With a manual focus lense on a pz1-p you don't have auto focus after all its a 
manual 
focus lense. If the camera is set on auto will it set the shutter speeds and aperture 
for 
you or better still will the function of me manually selecting the aparture will the 
pz1 
automatically set the shutter speed (visa versa?

2. With a screw mount manual focus lense on a pz1-p you don't have auto focus after 
all 
its a manual focus lense. If the camera is set on auto will it set the shutter speeds 
and 
aperture for you or better still will the function of me manually selecting the 
aparture will 
the pz1 automatically set the shutter speed vica versa?


Thanks

Joe
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Re: manual lenses on pz1p how does it all work

2002-02-18 Thread dave o'brien

On Tue, 19 Feb 2002 [EMAIL PROTECTED] wrote:

 1. With a manual focus lense on a pz1-p you don't have auto focus after all its a 
manual 
 focus lense. If the camera is set on auto will it set the shutter speeds and 
aperture for 
 you or better still will the function of me manually selecting the aparture will the 
pz1 
 automatically set the shutter speed (visa versa?

If the lens is an A, F or FA lens, then the camera can select the
aperture, as long as then the aperture is set to 'A'.  If it's an M or K
lens, then you'll need to set the aperture yourself on the lens.

This assumes that the camera is in P, HyP or HyM modes.

Changing the shutter speed will only change the aperture if the lens is 
set to 'A'.
 
 2. With a screw mount manual focus lense on a pz1-p you don't have auto focus after 
all 
 its a manual focus lense. If the camera is set on auto will it set the shutter 
speeds and 
 aperture for you or better still will the function of me manually selecting the 
aparture will 
 the pz1 automatically set the shutter speed vica versa?

M42 lenses (screwmounts) are similar to M or Kle lenses as above, but you 
also have to stop down to meter at your desired aperture.  i.e., if you 
have an M42 50/f1.4, and you want to take a photo at f8, you need to set 
the little lever on the lens so that it's gets darker when you close the 
aperture, then set the aperture to f8 to meter.  The camera won't close 
the aperture for you when taking the picture like it will with K-mount 
lenses.

dave
-- 
dave o'brien - http://www.diaspoir.net
We give advice, but we cannot give the wisdom to profit by it.
-- La Rochefoucauld
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Re: manual lenses on pz1p how does it all work

2002-02-18 Thread Nick Wright

--- [EMAIL PROTECTED] wrote:
 Can someone pls help me on the following questions?
 

Can't help with number 2, but I can be of help with
#1.
 
 1. With a manual focus lense on a pz1-p you don't
 have auto focus after all its a manual 
 focus lense. If the camera is set on auto will it
 set the shutter speeds and aperture for 
 you or better still will the function of me manually
 selecting the aparture will the pz1 
 automatically set the shutter speed (visa versa?

The answer is, it depends. You have to remember that
there are two types of manual focus lenses. The A
and the M versions. The A version has all the
proper electrical contacts to allow the camera body to
control the aperature, and has an A position on the
aperature ring just beyond the min f-stop mark. The
M version does not, and the aperature must be set
via the lens itself. Therefore, with A series lenses
you have all of the same metering (Matrix, CW, Spot)
and exposure modes (HyP, HyM, Av, Tv) as with
autofocus lenses. But with the M lens you lose the
HyP, and Tv exposure modes, and the Matrix metering
mode. In other words, with an M lens you lose any
features that require the body to control the
aperature.

 Thanks
 
 Joe

Hope this helps.
Nick
Yahoo! Sports - Coverage of the 2002 Olympic Games
http://sports.yahoo.com
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Re: manual lenses on pz1p how does it all work

2002-02-18 Thread Fred

 You have to remember that there are two types of manual focus
 lenses. The A and the M versions. The A version has all the
 proper electrical contacts to allow the camera body to control the
 aperature, and has an A position on the aperature ring just
 beyond the min f-stop mark. The M version does not, and the
 aperature must be set via the lens itself.

Well, technically, assuming that you're talking about the K-mount MF
lenses, there are also the SMC (K) lenses, but they also lack
electrical contacts, and work just as the M lenses do, as described.

Fred
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