Olympus-OM
[Top] [All Lists]

Re: [OM] Reciprocity table

Subject: Re: [OM] Reciprocity table
From: "Ian M. Stewart" <ims@xxxxxxxxxxxxxxxxxxx>
Date: Wed, 11 Feb 1998 21:37:35
At 07:39 10/02/98 -0800, George Ling wrote:
>Thanks for sharing this wonderful information with us. If it is NOT too
>much trouble for you, I would like to have also the *recommended filter*
>information - to compensate for color shift.
>
No problem George,

FILM
                   < 1 sec         1 sec         10 sec         100 sec
Ektachrome 64        nil          O5R +0.5         NR               NR
Ektachrome 100       nil          O5R +0.5         NR               NR
Kodachrome 64        nil          10R + 1          NR               NR
         
                   < 1 sec         1 sec         10 sec          60 sec
Kodachrome E100SW    nil           nil          nil            075y +0.33

                   < 1sec         4 sec        16 sec          64 sec
Velvia               nil         5M + 0.33     10M + 0.66        NR

                   < 16sec       34 sec        120 sec         480 sec
Provia               nil         + 0.5         2.5R + 1          NR

                   < 32 sec      64 sec        120 sec         480 sec
Astia                nil         + 0.33         + 0.5            NR

                   < 1 sec       1 sec         10 sec          60 sec
Agfa RSX50           nil          nil          05B + 0.66        + 1

                   < 1 sec       1 sec         10 sec          100 sec
Agfa Scala           nil         + 0.5         + 1              + 2

                   < 1 sec       1 sec         10 sec          35 sec
Ilford FP4 plus      nil          nil          + 1.66          +2.5

HTH

>My understanding about color negative films is that they have wider
>exposure latitude and any color shift can/will be compensated during
>printing any way.  Thus, I don't think I have seen (or I don't recall
>seeing) such information for color negatives.

Oh.

>On the other hand, many astrophotograhers use color negative films a lot
>and for long exposures, and one of them have JUST *calibrated* a bunch
>of them in terms of blue/green/red sensitivity. Here is his URL address.
>Hope this can answer your question.
<snip>

Thanks George!

__

Ian  <IMS>
                  OM Tyro - please point my lens in the right direction.
mailto:ims@xxxxxxxxxxxxx

############################################################
| This message was delivered via the Olympus Mailing List
| To receive the Digest version send mail to: listserv@xxxxxxxxxxxxxxx
|    with "subscribe olympus-digest" in the message body.
| To unsubscribe from the current list send a message to
|   listserv@xxxxxxxxxxxxxxx with "unsubscribe olympus" in the body.
| For questions email: owner-olympus@xxxxxxxxxxxxxxx
|    htttp://Zuiko.sls.bc.ca/swright/olympuslist.html
############################################################


<Prev in Thread] Current Thread [Next in Thread>
Sponsored by Tako
Impressum | Datenschutz