Maybe they made the grain finer (which normally means less speed) while
maintaining the old speeds by the new technology?
I always thought portra 400 worked better at 200, so maybe they are now
making it a true 400?
Just a couple of thoughts.
--
Chris Crawford
Photography & Graphic Design
Santa Fe, New Mexico
http://www.chriscrawfordphoto.com
http://www.plumpatrin.com Something the world NEEDS.
On 7/5/07 1:34 PM, "Chuck Norcutt" <chucknorcutt@xxxxxxxxxxxxxxxx> wrote:
> This is probably the operative statement:
> -------------------------------------------------------
> When will the new 160- and 400-speed film be available?
> New generation PORTRA Films will be available worldwide on a
> stock-turnover basis beginning in Q4 2006.
> -------------------------------------------------------
>
> Apparently the old stock hasn't turned over yet. :-)
>
> I also thought this a rather mysterious statement:
> ------------------------------------------------------
> The energy absorbed in the outer layer is efficiently transferred to the
> dye at the surface of the silver halide. This enhanced light absorption
> increases the photographic sensitivity of the crystals, resulting in
> improved overall imaging efficiency in PORTRA 400- and 800-speed Films.
> ------------------------------------------------------
>
> So I ask, if the photographic sensitivity has been increased, why are
> they still ISO 400 and 800 emulsions?
>
> Chuck Norcutt
>
> Komtanoo Pinpimai wrote:
>> I'm having the same problem. The retails don't say "new" or "old". I've
>> found a faq on Kodak site:
>>
>> http://www.kodak.com/global/plugins/acrobat/en/professional/products/films/po
>> rtra/qAndAUS.pdf?id=0.2.22.14.7.14.20&lc=en
>>
>> On 7/5/07, swisspace <swisspace@xxxxxxxxxxx> wrote:
>>> How do you tell which is the old and which is the new from the wrapping?
>>>
>>> I sent my father in law in search of some in germany - with specific
>>> instructions it must be the new stuff, it looks exacly the same as the
>>> old stuff, so I think maybe they lied to him, when they said it was the
>>> new stuff.
>>>
>>> IanW
>>>
>>> AG Schnozz wrote:
>>>> I'm less than pleased these days with the various retail
>>>> establishments selling Portra films.
>>>>
>>>>
>>> ==============================================
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>>> List nannies: olympusadmin@xxxxxxxxxx
>>> ==============================================
>>>
>>
>>
>>
>
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