Using Kodak Black-White Darkroom Dataguide

emerson531 · May 8, 2014

Would appreciate the insight of experienced Kodak DataGuide Users.

I'm have the 1979 Black-and-White Darkroom Dataguide
Edition 6

On Page 5 The Table of Development Numbers.
Why are some numbers Light Grey while others Orange Brown vs normal BLACK?

On Page 7 The Developing Dial
What is the purpose of the Orange Brown "P" to the left of the dial Triangle Pointer?

Thanks in advance

Emerson
Kanata Ontario Canada Where Spring has just sprung
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bdial · May 8, 2014

My copy is older than your's and doesn't have most of the features you're speaking of.
For the development number table, the black is probably the recommended combination, and the grey other possibilities. At least, that's the way it's presented in mine, but mine doesn't have anything in Orange.
No "P" on the developing dial on mine either.
There should be explanations of all that in the text though.

Maybe if you can post some pictures?

Prof_Pixel · May 8, 2014

emerson531 said:
Would appreciate the insight of experienced Kodak DataGuide Users.

I'm have the 1979 Black-and-White Darkroom Dataguide
Edition 6

I have the same version

On Page 5 The Table of Development Numbers.
Why are some numbers Light Grey while others Orange Brown vs normal BLACK?

I can't find any explanation

On Page 7 The Developing Dial
What is the purpose of the Orange Brown "P" to the left of the dial Triangle Pointer?

The P is for push processing. See the middle of Page 10

So I'm 1 for 2.

Photo Engineer · May 8, 2014

There have been several revisions since then to reflect changes in films.

I suggest that you look up some info on the internet.

PE

Prof_Pixel · May 8, 2014

OK - I figured out the colored numbers in the table on page 5

See pages 12 and 13 on controlling film contrast and go though the example on the top of page 13. Note the statement "Development number from the table is 36 1/2, and the color is blue". You use the corresponding color from the tables below (luminance range, flare) to match the color from page 5.

Tom1956 · May 8, 2014

Kodak had it all figured out, huh? Man I wish I could go into the time tunnel and be a fly on the way at the Kodak premises back in the day. Probably busier than an ant hill.

Photo Engineer · May 9, 2014

You have no idea Tom!

PE

David Brown · May 9, 2014

Photo Engineer said:
There have been several revisions since then to reflect changes in films.

I suggest that you look up some info on the internet.

PE

I would second this! I have the same old books, but it is so easy to get current information.

And, from a reliable source.

bsdunek · May 9, 2014

Photo Engineer said:
You have no idea Tom!

PE

That's for sure! My Dad had all the Kodak booklets, and the information in them is phenomenal. So far as I can tell, NONE of the other photo manufactures came even close to these publications. Sure wish Kodak was like the old days - but then - the world moves on.

Tom1956 · May 9, 2014

bsdunek said:
That's for sure! My Dad had all the Kodak booklets, and the information in them is phenomenal. So far as I can tell, NONE of the other photo manufactures came even close to these publications. Sure wish Kodak was like the old days - but then - the world moves on.

I tell myself if won't be like that in heaven. It's about all I've got.

Photo Engineer · May 9, 2014

When I was in the AF, I asked our Kodak rep foe a source of information that I needed. This was 1962. He took me out to his care and opened the trunk to reveal a complete library of EK publications and binders. He gave me a huge set of the books which are still here in the binders and many have been updated. He reminded me that our labs each had appropriate sets, but that min were a mix of still and MP. Some of the things covered were UV and IR photography and forensic photography.

It has been a nice set to own, but they are wearing out from use!

PE

Tom1956 · May 9, 2014

What a goldmine! In 1962 I was at Commonwealth UMC kindergarten in Charlotte. And Major Adams had already died off Wagon Train 2 years earlier. My Dad shot our pictures on his Ansco Color Clipper (which I still have). That's about it for me and 1962.
Edit. My Dad used mostly Anscochrome because my uncle was a sales rep for Ansco. Still have that Ansco slide projector. Slide goes in one side and pushes out the other--1 at a time.

emerson531 · May 10, 2014

Prof_Pixel I very much appreciate the time you took to look into this and give me the exact information I needed.
I now understand the purpose of the colouring.

I also learned that you should not use tungsten lighting to read the data guide! It makes the BLUE look black!!

Thanks Again Emerson in Ottawa/Kanata

Prof_Pixel · May 10, 2014

Glad to be of help. I knew there had to be a reason for the different colors. I'm just surprised things weren't explained a little better.

emerson531 · May 10, 2014

Clearly you have more patience than I !

Thanks again!

Using Kodak Black-White Darkroom Dataguide

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