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Efke KB25 + pyro



 
 
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  #1  
Old February 25th 04, 03:04 PM
Fëdor Pavlovic'
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Default Efke KB25 + pyro

I'm testing Efke KB 25 + pyro, esposed at 12 iso, sometime I need long
expositions time, but I'haven't found data for reprocity failure of this
Film.
In your experience the data of APX 25 is similar ?

Regards

Lorenzo


  #2  
Old February 25th 04, 05:01 PM
Gregory W Blank
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Default Efke KB25 + pyro

In article ,
"Fëdor Pavlovic'" wrote:

I'm testing Efke KB 25 + pyro, esposed at 12 iso, sometime I need long
expositions time, but I'haven't found data for reprocity failure of this
Film.
In your experience the data of APX 25 is similar ?
Regards
Lorenzo


Define long exposure time, in normal outdoor
applications I found the film to perform very well
at 25 ASA/ISO using Pyro,....no adjustment
for reciprocity within 1to 2 second exposure
time.
--
LF website http://members.bellatlantic.net/~gblank

  #3  
Old February 26th 04, 02:44 PM
Fëdor Pavlovic'
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Posts: n/a
Default Efke KB25 + pyro


"Gregory W Blank" ha scritto nel messaggio
...
In article ,
"Fëdor Pavlovic'" wrote:

I'm testing Efke KB 25 + pyro, esposed at 12 iso, sometime I need long
expositions time, but I'haven't found data for reprocity failure of this
Film.
In your experience the data of APX 25 is similar ?
Regards
Lorenzo


Define long exposure time, in normal outdoor
applications I found the film to perform very well
at 25 ASA/ISO using Pyro,....no adjustment
for reciprocity within 1to 2 second exposure
time.


ok, but in a winter dark day (cloudy), 12 ISO at F22 (macro using Hasselbad
planar 80 + 16 mm tube) and green fliter I need 10-15 seconds.


  #4  
Old February 26th 04, 06:39 PM
Gregory W Blank
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Posts: n/a
Default Efke KB25 + pyro

In article ,
"Fëdor Pavlovic'" wrote:

ok, but in a winter dark day (cloudy), 12 ISO at F22 (macro using Hasselbad
planar 80 + 16 mm tube) and green fliter I need 10-15 seconds.


My rule is that for such an exposure to try doubling the exposure.
--
LF website http://members.bellatlantic.net/~gblank

  #5  
Old March 8th 04, 01:25 AM
Norman Worth
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Posts: n/a
Default Efke KB25 + pyro

Reciprocity?

"Fëdor Pavlovic'" wrote in message
...

"Gregory W Blank" ha scritto nel messaggio
...
In article ,
"Fëdor Pavlovic'" wrote:

I'm testing Efke KB 25 + pyro, esposed at 12 iso, sometime I need long
expositions time, but I'haven't found data for reprocity failure of

this
Film.
In your experience the data of APX 25 is similar ?
Regards
Lorenzo


Define long exposure time, in normal outdoor
applications I found the film to perform very well
at 25 ASA/ISO using Pyro,....no adjustment
for reciprocity within 1to 2 second exposure
time.


ok, but in a winter dark day (cloudy), 12 ISO at F22 (macro using

Hasselbad
planar 80 + 16 mm tube) and green fliter I need 10-15 seconds.




 




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