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**Buffy** · 06-14-2008, 12:26 PM

I had shot a roll of Ilford Pan-F 50 and when I was done I replaced it with a roll of Delta 100. Apparently the Delta 100 isn't DX encoded or I screwed up some other way because the camera didn't adjust the ISO. Consequently, I've taken 7-8 shots with the wrong ISO setting.

Would you switch the camera ISO setting and just cope with overexposure for the first 8, or just continue and pull process the film? Mind you I don't expect any great fine art keepers from those shots, they aren't critical.

Buffy

straightshooter · 06-14-2008, 12:49 PM

Personally, if there was nothing remotely interesting in the first 7-8 shots, I would just correct the ISO and work from there.
CW

titrisol · 06-15-2008, 07:14 AM

Just continue shooting as 50 and develop accordingly.
1 stop over exposure will not harm much

PS. I don't know which camera you have, but do not rely on the DX sensor.... set the ISO manually each time

Originally posted by Buffy

I had shot a roll of Ilford Pan-F 50 and when I was done I replaced it with a roll of Delta 100. Apparently the Delta 100 isn't DX encoded or I screwed up some other way because the camera didn't adjust the ISO. Consequently, I've taken 7-8 shots with the wrong ISO setting.

Would you switch the camera ISO setting and just cope with overexposure for the first 8, or just continue and pull process the film? Mind you I don't expect any great fine art keepers from those shots, they aren't critical.

Buffy

lithos · 06-15-2008, 08:56 AM

Ilford Delta should be DX encoded.

I know this, because there's been many a time when I've taken to hacking the codes manually with an emery board.

Either keep shooting the whole thing at ISO 50, scrap the first seven or eight shots, or get thee some cyanide. Potassium ferricyanide, that is.

Remember that while 1-stop exposure difference mightn't make much difference on cubic grain films like Tri-X or Pan-F, it will with the T-grained films like Delta, which have much less latitude.

Tom S. · 06-15-2008, 10:58 AM

In the 'old days' of film, you would have ben best off to shoot the whole roll at the incorrect asa and notify the lab (if you didn't do your own processing) so they could adjust the processing to make allowances. I'm not sure if any labs can or know how to do that anymore.

Illford used to make a b&w film called 100XP or XP100 that you could shoot at any asa, even changing mid roll, and have it all come out ok. You used C4 (color) processing when developing it and everything came out ok.

titrisol · 06-15-2008, 11:34 AM

Ya mean XP2 super as it is called now?
Nominal ISO400 but does well from 100-800

Originally posted by Tom S.

In the 'old days' of film, you would have ben best off to shoot the whole roll at the incorrect asa and notify the lab (if you didn't do your own processing) so they could adjust the processing to make allowances. I'm not sure if any labs can or know how to do that anymore.

Illford used to make a b&w film called 100XP or XP100 that you could shoot at any asa, even changing mid roll, and have it all come out ok. You used C4 (color) processing when developing it and everything came out ok.

lithos · 06-15-2008, 10:53 PM

Originally posted by Tom S.

In the 'old days' of film, you would have ben best off to shoot the whole roll at the incorrect asa and notify the lab (if you didn't do your own processing) so they could adjust the processing to make allowances. I'm not sure if any labs can or know how to do that anymore.

Any BW lab worth its silver halide will push and pull film like that.

Quote:

Illford used to make a b&w film called 100XP or XP100 that you could shoot at any asa, even changing mid roll, and have it all come out ok. You used C4 (color) processing when developing it and everything came out ok.

Yeah, XP2 and Kodak's got BW400CN; both are C-41 films.

Tom S. · 06-16-2008, 05:44 AM

Originally posted by titrisol

Ya mean XP2 super as it is called now?
Nominal ISO400 but does well from 100-800

I bow to your knowledge since I haven't shot film in 10 years, and it's been a lot longer than that for b&w.

titrisol · 06-18-2008, 11:18 PM

If Mr.Alzheimer doesn;t betray me.... Ilford Xp100 was replaced by XP2 in the early 90s, then XP2Super came in 98-99
At that time ilford still had a line of color film (Ilfocolor) which was quite short lived
I believe AGFA, FUJI and Konica also had B&W C41 film but can't really recall.

Originally posted by Tom S.

I bow to your knowledge since I haven't shot film in 10 years, and it's been a lot longer than that for b&w.

06-14-2008, 12:26 PM	#1
Buffy Site Supporter Join Date: Apr 2007 Location: Greater Boston area, Massachusetts Posts: 389	ISO mix-up I had shot a roll of Ilford Pan-F 50 and when I was done I replaced it with a roll of Delta 100. Apparently the Delta 100 isn't DX encoded or I screwed up some other way because the camera didn't adjust the ISO. Consequently, I've taken 7-8 shots with the wrong ISO setting. Would you switch the camera ISO setting and just cope with overexposure for the first 8, or just continue and pull process the film? Mind you I don't expect any great fine art keepers from those shots, they aren't critical. Buffy

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06-14-2008, 12:49 PM	#2
straightshooter Inactive Account Join Date: May 2008 Location: Forest Park, Georgia/Jacksonville, Florida Photos: Gallery Posts: 633	Personally, if there was nothing remotely interesting in the first 7-8 shots, I would just correct the ISO and work from there. CW

06-15-2008, 07:14 AM	#3
titrisol Pentaxian Join Date: Dec 2007 Location: In the most populated state... state of denial Photos: Gallery \| Albums Posts: 1,854	Just continue shooting as 50 and develop accordingly. 1 stop over exposure will not harm much PS. I don't know which camera you have, but do not rely on the DX sensor.... set the ISO manually each time Originally posted by Buffy I had shot a roll of Ilford Pan-F 50 and when I was done I replaced it with a roll of Delta 100. Apparently the Delta 100 isn't DX encoded or I screwed up some other way because the camera didn't adjust the ISO. Consequently, I've taken 7-8 shots with the wrong ISO setting. Would you switch the camera ISO setting and just cope with overexposure for the first 8, or just continue and pull process the film? Mind you I don't expect any great fine art keepers from those shots, they aren't critical. Buffy

06-15-2008, 08:56 AM	#4
lithos Inactive Account Join Date: Oct 2007 Location: Brisbane, QLD, AUS Posts: 3,261	Ilford Delta should be DX encoded. I know this, because there's been many a time when I've taken to hacking the codes manually with an emery board. Either keep shooting the whole thing at ISO 50, scrap the first seven or eight shots, or get thee some cyanide. Potassium ferricyanide, that is. Remember that while 1-stop exposure difference mightn't make much difference on cubic grain films like Tri-X or Pan-F, it will with the T-grained films like Delta, which have much less latitude.

06-15-2008, 10:58 AM	#5
Tom S. Veteran Member Join Date: May 2008 Location: S.E. Michigan Photos: Albums Posts: 4,317	In the 'old days' of film, you would have ben best off to shoot the whole roll at the incorrect asa and notify the lab (if you didn't do your own processing) so they could adjust the processing to make allowances. I'm not sure if any labs can or know how to do that anymore. Illford used to make a b&w film called 100XP or XP100 that you could shoot at any asa, even changing mid roll, and have it all come out ok. You used C4 (color) processing when developing it and everything came out ok.

06-15-2008, 11:34 AM	#6
titrisol Pentaxian Join Date: Dec 2007 Location: In the most populated state... state of denial Photos: Gallery \| Albums Posts: 1,854	Ya mean XP2 super as it is called now? Nominal ISO400 but does well from 100-800 Originally posted by Tom S. In the 'old days' of film, you would have ben best off to shoot the whole roll at the incorrect asa and notify the lab (if you didn't do your own processing) so they could adjust the processing to make allowances. I'm not sure if any labs can or know how to do that anymore. Illford used to make a b&w film called 100XP or XP100 that you could shoot at any asa, even changing mid roll, and have it all come out ok. You used C4 (color) processing when developing it and everything came out ok.

06-15-2008, 10:53 PM	#7
lithos Inactive Account Join Date: Oct 2007 Location: Brisbane, QLD, AUS Posts: 3,261	Originally posted by Tom S. In the 'old days' of film, you would have ben best off to shoot the whole roll at the incorrect asa and notify the lab (if you didn't do your own processing) so they could adjust the processing to make allowances. I'm not sure if any labs can or know how to do that anymore. Any BW lab worth its silver halide will push and pull film like that. Quote: Illford used to make a b&w film called 100XP or XP100 that you could shoot at any asa, even changing mid roll, and have it all come out ok. You used C4 (color) processing when developing it and everything came out ok. Yeah, XP2 and Kodak's got BW400CN; both are C-41 films.

06-16-2008, 05:44 AM	#8
Tom S. Veteran Member Join Date: May 2008 Location: S.E. Michigan Photos: Albums Posts: 4,317	Originally posted by titrisol Ya mean XP2 super as it is called now? Nominal ISO400 but does well from 100-800 I bow to your knowledge since I haven't shot film in 10 years, and it's been a lot longer than that for b&w.

06-18-2008, 11:18 PM	#9
titrisol Pentaxian Join Date: Dec 2007 Location: In the most populated state... state of denial Photos: Gallery \| Albums Posts: 1,854	If Mr.Alzheimer doesn;t betray me.... Ilford Xp100 was replaced by XP2 in the early 90s, then XP2Super came in 98-99 At that time ilford still had a line of color film (Ilfocolor) which was quite short lived I believe AGFA, FUJI and Konica also had B&W C41 film but can't really recall. Originally posted by Tom S. I bow to your knowledge since I haven't shot film in 10 years, and it's been a lot longer than that for b&w.

ISO mix-up

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