Jump to content

Recommended Posts

Hello,

I have an old DURST CM 50 color analyzer. I never used it.

But today I have try to know how to use it. It hasn't user manual. I Insert four LR44 batteries, and it seems to run. I think this CM 50 can hel to to find the exposure time when I enlarge copies.

 

I try to find the user manual in google, but I don't find it.

Could somebody help me to get this user manual?

 

Thank you very much.

Link to comment
Share on other sites

I thought I had one, but just Googled the thing and it's nothing like the Durst analyser I was thinking of. Sorry!

 

Looks like it just clips onto the enlarging lens, so it won't be any use to read exposure times for B&W printing, if that's what you had in mind.

Edited by rodeo_joe|1
Link to comment
Share on other sites

Interesting.

 

I have a color analyzer that I haven't tried using (partly because I haven't been

interested in any color printing since I got it used.)

 

As I understand the one I have, you put a diffusing filter over the lens, such

that it reads the average color (and intensity) of the whole print.

But I don't have that filter.

 

I don't know if the CM50 needs such a filter, though.

 

In the beginning of Unicolor, they had a system for determining the

color balance with a diffusing filter and set of filters in what looked

like the image of a flattened cube. You then expose a print through

this, and choose the one that came out with the least color offset.

 

Here is a picture of the box:

Camera House

 

In any case, a common way to do color metering is average

over the whole scene.

-- glen

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...