Which Densitometer to Purchase?

[kentrush]

Where would I go to get my densitometer recalibrated?

[Greg]

Where would I go to get my densitometer recalibrated?

With a calibrated step wedge, you should be able to calibrate your densitometer yourself. Definitely should work for analogue, not totally sure also for digital.

[xkaes]

For all you cheapskates out there, it's really easy to use an enlarger meter/color analyzer as a densitometer. Just pick any starting point as (ZERO without any density), and convert whatever scale your instrument has, for example time, into exposure values.

Similarly, if your hand-held exposure meter has an enlarger/enlarging attachment -- like most of the Minolta meters, and many others as well -- you can use that in a pinch. That's the first thing I did when I got my Stouffer's step wedge -- to test my meter AND test the wedge.

[Alan Klein]

I have a densitometer tool on my Epson scanner program. What advantage would there be in using it and how would you do that?

[Alan Klein]

I have a densitometer tool on my Epson scanner program. What advantage would there be in using it and how would you do that?

Here is the explanation of how to use the densitometer. My question is how would this procedure help me?
https://files.support.epson.com/html...rf/twnpr_2.htm

[Drew Wiley]

Real black and white clamshell-style transmission densitometers aren't terribly expensive. X-Rite made some nice ones, and those are easily found used. Someone else makes clone models now, maybe around $200. If you want to plot curves, the real deal is definitely going to save you grief.

[Bernard_L]

Here is the explanation of how to use the densitometer. My question is how would this procedure help me?
https://files.support.epson.com/html...rf/twnpr_2.htm

Read the document in the link. Epson may well call it a densitometer, it has nothing to do with an actual densitometer. Just RGB values, that generally are related to transmission values by mildly complex equations. And that is before mentioning the logarithm.

Maybe, just maybe, if displaying 16-bit linear values, then taking a calibration, then taking the log...

[Drew Wiley]

... or dragging a big log behind you trying to make sense of it all.

[tih]

This unit is getting a lot of praise over on Photrio: https://www.dektronics.com/store/p/p...r-densitometer

[Drew Wiley]

Yep. A basic clamshell with a few new features. A 3mm aperture is kinda big for certain things (versus interchangeable aperture diameters); but that limitation is not a deal-killer.