It is advisable with colour film to always adjust the aperture whenever possible as this has an effect on the intensity of light striking the film. With B/W films densities build up proportionately during development, so the exposure is usually altered by shutter speed with a corresponding cut in development time.
Reciprocity failure occurs during exposures exceeding one second. Essentially what this means is that the emulsion, having been designed for high-speed exposures, fails to respond in its usual proportions to the amount of light it is exposed to.
Thus, an exposure correction must be set for long exposures, depending on the film type. See the next charts to determine the amount of correction.
Definition
General compensation
Sheet
Reciprocity correction values include adjustment required for suggested Kodak color compensating filters.
Legend: None= no correction required. NR= not recommended for critical use.
Univers
Calculated Exposure Time (Seconds).
Univers
Univers
Univers
Univers
Univers
rKodak slide film (film code)
Univers
'1/100
Univers
'1/10
Univers
Univers
Univers
Univers
bKODACHROME 25 (Day) (KM)
bKODACHROME 64 (Day) (KR)
.'1/3, CC05R
fKODACHROME 200 (Day) (KL)
.'1/2, CC10Y
^KODACHROME 25 Pro (PKM)
^KODACHROME 64 Pro (PKR)
.'1/3, CC05R
bKODACHROME 200 Pro (PKL)
.'1/2, CC10Y
nEKTACHROME ELITE II 50 (EA)
2'1/3, CC075Y
rEKTACHROME ELITE II 100 (EB)
2'1/3, CC075Y
vEKTACHROME 160T (Tungs) (ET)
.'1/3, CC10R
rEKTACHROME ELITE II 200 (ED)
.'1/3, CC05R
.'1/2, CC10R
rEKTACHROME ELITE II 400 (EL)
.'1/3, CC05R
.'1/2, CC10R
^EKTACHROME 64 Pro (EPR)
.'1/3, CC05R
bEKTACHROME 64T Pro (EPY)
.'1/3, CC05R
bEKTACHROME 100 Pro (EPN)
.'1/3, CC05M
REKTACHROME E100S Pro
^'1/3, CC075Y at 120 sec
VEKTACHROME E100SW Pro
^'1/3, CC075Y at 120 sec
NEKTACHROME E200 Pro
^'1/3, CC075Y at 120 sec
vEKTACHROME 100 PLUS Pro (EPP)
.'1/3, CC25R
*'+1, CC25R
B'+2, CC10Y+CC25R
fEKTACHROME 160T Pro (EPT)
.'1/3, CC10R
bEKTACHROME 200 Pro (EPD)
.'1/2, CC05M
fEKTACHROME 320T Pro (EPJ)
.'1/3, CC05R
.'1/2, CC10R
jEKTACHROME 400X Pro (EPL)
.'1/3, CC05R
.'1/2, CC10R
nEKTACHROME P1600 Pro (EPH)
Make tests for actual conditions
Univers
Sheet1
&Sheet.app
Definition
General compensation
KodakG
Click on the icon to see the correction data for Kodak slide films.
Definition
General compensation
KodakG
Click on the icon to see the correction data for Kodak slide films.
Definition
General compensation
KodakG
Click on the icon to see the correction data for Kodak slide films.
FujiE
Click on the icon to see the correction data for Kodak slide films.
Sheet
Reciprocity correction values include adjustment required for suggested Kodak color compensating filters.
Legend: None= no correction required. NR= not recommended for critical use.
Univers
Calculated Exposure Time (Seconds).
Univers
Univers
Univers
Univers
Univers
rKodak slide film (film code)
Univers
'1/100
Univers
'1/10
Univers
Univers
Univers
Univers
Univers
Sheet1
&Sheet.app
Definition
General compensation
KodakG
Click on the icon to see the correction data for Kodak slide films.
FujiG
Click on the icon to see the correction data for Kodak slide films.
Sheet
Reciprocity correction values include adjustment required for suggested Fuji color compensating filters.
Univers
Legend: None= no correction required. NR= not recommended for critical use.
Univers
fCalculated Exposure Time
Univers
Univers
Univers
Univers
Univers
Univers
Univers
Univers
nFuji slide film (film code)
Univers
Univers
Univers
Univers
Univers
Univers
Univers
2 min
Univers
8 min
Univers
2Velvia (RVP)
5M +1/3
&7.5M +1/2
"10M +2/3
"12.5M +1
JProvia 100 (RDPII)
'+1/2
2.5R +1
>Astia 100 (RAP)
'+1/3
'+1/2
BMS100/1000 (RMS)
'+1/3
'+1/2
BProvia 400 (RHP)
*5M+2.5R +1
"5M+5R +1
FProvia 1600 (RSP)
&7.5R +1/2
.10M+5R +2/3
.10M+5R +2/3
Univers
Sheet1
&Sheet.app
Definition
General compensation
KodakG
Click on the icon to see the correction data for Kodak slide films.
FujiF
Click on the icon to see the correction data for Fuji slide films.
Sheet
Reciprocity correction values include adjustment required for suggested Fuji color compensating filters.
Univers
Legend: None= no correction required. NR= not recommended for critical use.
Univers
fCalculated Exposure Time
Univers
Univers
Univers
Univers
Univers
Univers
Univers
Univers
nFuji slide film (film code)
Univers
Univers
Univers
Univers
Univers
Univers
Univers
2 min
Univers
8 min
Univers
2Velvia (RVP)
5M +1/3
&7.5M +1/2
"10M +2/3
"12.5M +1
JProvia 100 (RDPII)
'+1/2
2.5R +1
>Astia 100 (RAP)
'+1/3
'+1/2
BMS100/1000 (RMS)
'+1/3
'+1/2
BProvia 400 (RHP)
*5M+2.5R +1
"5M+5R +1
FProvia 1600 (RSP)
&7.5R +1/2
.10M+5R +2/3
.10M+5R +2/3
Univers
Sheet1
&Sheet.app
Definition
General compensation
KodakG
Click on the icon to see the correction data for Kodak slide films.
FujiF
Click on the icon to see the correction data for Fuji slide films.