Difference between T-Max 100 and 400 in medium format?

pkr1979 · 2025-11-23T14:04:47-0500

laser said:
I am gratified by all the kind comments on Kodak T-MAX Films. I was the product development engineer and by the time it was introduced Worldwide B&W Product Manager. Because the team working on the project was small, I was responsible for everything from the business case and pricing to writing the specification to measuring the performance to deciding on emulsion performance trade-offs to selecting the names to designing the packaging to presenting the announcement press conference. Gordon Brown suggested the name by combining the T for tabular and MAX for DMax (maximum density) . As I recall I started the work January 1, 1981, almost 45 years ago. The time has flown by, I was having fun.
www.makingKODAKfilm.com

Thanks for chiming in @laser - I would love to hear your take on this

MarkS · 2025-11-23T14:39:33-0500

TMX vs. TMY?

TRY IT.

same day, same subject, same lighting. Expose some of each, bracket for insurance purposes.
Develop per your choice.
Print them as big as you want,
Then you'll know.

There are so many variables here (including your own taste) that no one else's answers will work for you.

David R Williams · 2025-11-23T15:54:23-0500

laser said:
I am gratified by all the kind comments on Kodak T-MAX Films. I was the product development engineer and by the time it was introduced Worldwide B&W Product Manager. Because the team working on the project was small, I was responsible for everything from the business case and pricing to writing the specification to measuring the performance to deciding on emulsion performance trade-offs to selecting the names to designing the packaging to presenting the announcement press conference. Gordon Brown suggested the name by combining the T for tabular and MAX for DMax (maximum density) . As I recall I started the work January 1, 1981, almost 45 years ago. The time has flown by, I was having fun.
www.makingKODAKfilm.com

Thanks for your reply Bob.

As a happy owner of your second edition, I was very interested to learn so much about the film design and manufacturing process.

I, and I suspect many more, would love to hear more of your experiences in the development of the TMax films, and the trade-offs that were made (and perhaps the considerations that went into such trade-offs) to the extent it wouldn't compromise any confidential commercial information or NDA's that you may still be subject to.

Arthurwg · 2025-11-23T16:14:13-0500

mshchem said:
I couldn't see grain in TMY, TMY-2 using my little Paterson "grain" focusing scope, several years ago I found a used Micromega focusing scope could finally see it. I don't make really big enlargements mostly 8x10 from medium format negs. I have used mostly TMY for the last 30 years along with XTOL. These films and the T-grain Kodak color negative films were revolutionary. Still are.

Yes, I don't use it because I can't see the grain to focus. NowlLooking for a Micromega.

Difference between T-Max 100 and 400 in medium format?

pkr1979

MarkS

David R Williams

Arthurwg

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