under or over developed?

[Chriscc123]

i just developed a roll of tmax 100 and tmax 400... and they came out extremely fogy , (not as in a light leak), did i under or over developed (the newbie in me has spoken!)

(hc-110 B for 3:40 temp 24c)

 

[mablo]

Maybe your fixer has gone bad. I would make a new batch of fixer and refix the negs.

 

[Nikanon]

Many possible variables. You may have used too long of a time, or too little agitation or a combination of the two. You may not have hypo washed your film removing all those compounds you don't after developing. You may have let your film sit in a place that was a bit too warm for a bit too long. You may not have presoaked long enough to remove the large amount of anti-halation layer that T-max boasts. I would have to see some of the images to get a better idea, but regardless the possibilities do make a list that Santa wouldn't shake a stick at.

To answer the question directly, you did not under develop. As you develop, the Silver Halogen compounds are converted into clumps of pure silver, the more you develop the more this happens. Some developers produce more fog than others due to the mixture of chemicals that make up the solution. 3 minutes 40 seconds sounds like a very short time, so it is more likely that your film has been fogged from either heat or age. Older T-max films seem to fog readily after a good couple years and will give you a good thick fog. I recommend buying a new roll of T-max 100, shooting a frame at correct exposure of an even lit, and equally luminous surface such as a textured wall and shoot about 5 frames increasingly being a stop over exposed each and then shooting 5 frames increasingly being a stop under expose each. Develop this and examine the results. This will not only give you and idea of where the problem may be, but also a rough idea of how much contrast you are getting from your chosen development method.

Nikanon

 

[Chriscc123]

now that there dry i cant tell if they could be considered foggy anymore... now they just have a very purple tint

 

[marco.taje]

Purple tint + fog.. That actually sounds like insufficient fixing. There is a sticky thread about purple negatives; you might want to check that as well.

Bye

 

[juan]

Find a copy of Fred Picker's book "The Zone VI Workshop." It's no longer published but shows up on eBay and other used book stores. Fred has a simple way of testing so that you lock in your exposure and development times. Or, go to APUG member Dead Link Removed and get his film test kit.

You really need to test yourself so that you will understand the differences between under and over exposure, under and over development.
juan

 

[Chriscc123]

fyi i have fixed the problem, i ended up re fixing for 10 or more min, then a 10 or more min soak in hypo

(i think my fixer is exhausting super quickly)

 

[mablo]

What I said. In many cases fixer is the culprit. That's why I don't reuse fixer any longer.

 

[Gerald C Koch]

Many books on photography contain an illustration of all the possible combinations of over/under exposure and development. See if you can find one and study the illustrations until you are familiar with the differences.

 

[wclark5179]

"they came out extremely fogy"

Happened to me. Figured out I was trying look at them through a wine glass!

Can you post one or two examples?

 

[RalphLambrecht]

fyi i have fixed the problem, i ended up re fixing for 10 or more min, then a 10 or more min soak in hypo

(i think my fixer is exhausting super quickly)

TMax is pretty rough on fixer. I recommend rotational processing and two-bath, single-shot fixing for film.

 

[MattKing]

fyi i have fixed the problem, i ended up re fixing for 10 or more min, then a 10 or more min soak in hypo

(i think my fixer is exhausting super quickly)

Just a note of clarification.

When you say "10 or more min soak in hypo" many will think you mean a "10 or more min soak in fixer"

Hypo is an out-of-date but still quite prevalent nickname for Fixer.

I'm pretty confident that your quoted statement actually meant a "10 or more min soak in Hypo Clearing Agent". Kodak still calls its washaid by that term.

 

[Chriscc123]

Just a note of clarification.

When you say "10 or more min soak in hypo" many will think you mean a "10 or more min soak in fixer"

Hypo is an out-of-date but still quite prevalent nickname for Fixer.

I'm pretty confident that your quoted statement actually meant a "10 or more min soak in Hypo Clearing Agent". Kodak still calls its washaid by that term.

yes i know but old habits don't die easy

 

[Ronald Moravec]

T Max needs Kodak Rapid fix, no hardener, or Photographers Formlary TF4. It exhausts fix fast and extended fixing in other fixers does not work well. Insufficient fix caused retailned base/dye tint that is very difficult to remove.

Solution. One time use fix for 5 min and Ilford archival wash sequence. Then a few more wash cycles. It will be clear.

 

[RalphLambrecht]

yes i know but old habits don't die easy

Commercial fixers are based on sodium or ammonium thiosulfate and are often called ‘hypo’, which is short for hyposulfite of soda, an early but incorrect name for sodium thiosulfate. This creates enough confusion. Referring to 'Hypo Clearing Agent' as 'hypo' as well adds to the confusion and will fill numerous threads to come.

 

[Sirius Glass]

Referring to 'Hypo Clearing Agent' as 'hypo' as well adds to the confusion and will fill numerous threads to come.

I find that usage inaccurate, missleading and confusing. When I catch someone using it incorrectly and point it out to them, they have no understanding of what they said wrong!

Steve

 

[Chriscc123]

I find that usage inaccurate, missleading and confusing. When I catch someone using it incorrectly and point it out to them, they have no understanding of what they said wrong!

Steve

well yes i have had it pointed out to me before, but well, slip of the keys i should say? in the end everyone makes mistakes

 

[RalphLambrecht]

well yes i have had it pointed out to me before, but well, slip of the keys i should say? in the end everyone makes mistakes

And we'll make sure you get punished for it!

Go, wash out your mouth with soap, and never use the 'H' word again, or else.

 

[Sirius Glass]

And we'll make sure you get punished for it!

Go, wash out your mouth with soap, and never use the 'H' word again, or else.

OR use it properly to refer to hypo and not HCA!

Steve

 

[Gerald C Koch]

And we'll make sure you get punished for it!

Go, wash out your mouth with soap, and never use the 'H' word again, or else.

And remove the H key from your computer.