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densitometer.


peter_koning2

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I've visited a photoschool, a professional lab and others. And I'm very disappointed.They are not very cooperative in letting me use their transmission densitometer; belief me that is an understatement.

They probably think I want to steal something.By the way I also told them that a reasonable fee would be acceptable. Nevertheless I heard that you can measure the negs using a spot meter. If that's trough how does it work. Where can I find information about alternative measuring methods instead of using a densitometer.

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yeah, I just got me an x rite for 150 bucks, but you have to make

sure the seller will guarantee the item, previoulsy I bought an Eseco

supposedly in "excellent" condition and working, when I got it it

would not zero and it would not make the same reading from one time

to the next, of course the seller tried to tell me I broke it, and

that I did not know what I was doing because he "knew" it was working

when he sold it to me.....anyways to make a long soty short, after

numerous fraud complaints to various gov. agencies I got my money

back...but it was a hassle. So let my experience help you, there are

good deals on E bay, but just make sure you can get your money back

in case you are not happy.

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If I rember correctly, Phil Davis describes a method for using a spot

meter as a densitometer in his book "Beyond the Zone System". You

might also consider getting a density step wedge, which would allow

you to estimate density by either visual comparison or by contact

printing side by side with your film. Zone VI Studios used to do film

density measurements for a nominal fee. When Calumet originally took

them over, I think they still offered the service- I don't know if

they still do. I also recall an article in View Camera by Joe

Englander called the "Tone System" that controls negative and print

density using a step wedge rather than a densitometer.

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Peter,

 

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I bought an X-Rite densitometer on eBay for about half price. It

was used but well cared for, and it works very well. Yes, there are

ways to use a spot meter instead, but it's not nearly as exacting as

a real densitometer. You are still going to be approximating real

density measurements, so you might as well get a step wedge and make

visual estimates of comparison prints.

 

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If you are doing extensive film development tests, as I have spent

the last two months doing, a real densitometer is indispensable. I

could never have finished my testing if I had waited for chances to

use someone else's machine. It's not cheap, but it can certainly be

worth it in time savings.

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Peter, I put myself through college working at a photo lab, many

times techs are reluctant to let people they don't know use the

densitometer because it is an expensive piece of equipment and more

importantly THEIR process depends heavily on corrrect measurements.

If you by mistake change a calibration and/or a zero setting it can

cause a big headache for them, you need to develop a relationship

with them and show them you know what you are talking about before

they will let you use their densitometer. On the other hand when

people walked into my lab and asked to use the densitometer and I did

not know them I offered to read the negatives for them at no charge.

Most people were happy with that.

 

<p>

 

As to a densitometer from E bay this is a good idea, I got me an X

rite form e bay for about 150 bucks, is all beat up but it takes

consistent readings so I am happy. This is the key, make sure the

seller will let you return the item if you are not happy. If that is

the case then go for it, there are some good deals to be had at e bay.

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