I use a MZ50 and a sekonic digispot (L488) light meter. I am amazed at the
differences, even when pointed at a fairly uniform scene. For example, at a
given aperture, my MZ50 may think that 1/2000 is appropriate, while my light
meter thinks that 1/500 is right. I have also noticed large differences
when in low light. Since using the separate meter, my slides have been
coming back from the lab exposed the way I intended. If feel a bit nervous
when taking shots without the separate light meter.
However, "normal" EV levels seem to match up pretty well between the camera
and meter.
Does anyone else have the same experience?
Paul McLean
-----Original Message-----
From: K.Takeshita [mailto:[EMAIL PROTECTED]]
Sent: Monday, January 08, 2001 11:47 AM
To: Pentax Discuss
Subject: Re: ZX-M Light Meter
on 1/5/01 10:32 PM, K.Takeshita at [EMAIL PROTECTED] wrote:
> on 1/5/01 10:06 PM, Jeffrey Schneider at [EMAIL PROTECTED] wrote:
>
> <<Does anyone know if Pentax biases the light meters of their modern
> "consumer" cameras to overexpose, presuming that the cameras will be used
for
> print film (where some overexposure is usually good)? Or, do I have a
camera
> with a meter that's just a little out of adjustment?>>
>
> I've heard that camera mfrs do this. My memory is vague but z-1p for
example
> is calibrated more for an overexposure (one stop sounds a bit large
though)
> for negative film, while C**** (or could be N****) tend to calibrate for
> underexposure.
> But please do not rely on my memory at this time as to which mfrs do what
on
> which models.
> I learned this through discussions in Japanese mail lists but it was over
a
> year ago. I will try to find more accurate info if you give me several
days.
>
Hi Jeff and all,
I obtained the following info from a reliable source (Nothing artificially
secret or anything. Just to indicate that the info should be accurate).
For Pentax cameras;
1. Meter setting is different at each EV, i.e., as the EV increases, the
setting is a bit over. and a bit under as the EV decreases. It is indeed
biased that way.
2. Reading the film DX code, slightly overexposure setting for the negative
films and slightly under setting for the positives. Another way of bias.
3. Measuring the 18% gray under the standard EV, the meter setting should
show standard exposure.
I can not find the info as to how other brands are doing. I will post it if
I found it.
Cheers,
Ken
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