andrew_held Posted December 20, 2001 Share Posted December 20, 2001 I just bought a Weston 877 photographic analyzer in great shape. It seems to function perfectly, but it is missing instructions. Anyone know how to use it? Link to comment Share on other sites More sharing options...
jerry_flynn1 Posted May 13, 2002 Share Posted May 13, 2002 Are you still looking for an answer to this? I may be able to help. Link to comment Share on other sites More sharing options...
jerry_flynn1 Posted May 13, 2002 Share Posted May 13, 2002 OK, so I don't have a manual, but I used one of these units years ago at a studio where I worked. Recently, I picked one up on Ebay. Here's how I use it. <p> First, you turn it on set to "internal meter". A light should come on inside the unit. The meter is activated when you press down on the arm. To calibrate, put something opaque over the lighted aperture, press down on the arm and the meter needle should go to the infinity mark on the scale (infinite density). If not, you can adjust the needle with the adjusting screw just above the meter dial. <p> Next place a clear bit of film, the edge or something, over the aperture and press down on the arm. Turn the large knob until the meter reads "1". (This knob adjusts the brightness of the light. The smaller, concentric knob is the 'fine tune' on the adjustment.) <p> Now, move the part of the film you want to measure over the aperture, press down on the arm, and read the density. Now subtract 1 and you have the density above filmbase and fog. I.e. if the meter reads 1.75, you have an effective density of .75. <p> I hope that helps. You could get a calibrated step wedge to check the acuracy, but this meter seems to work well enough for my purposes. Link to comment Share on other sites More sharing options...
Recommended Posts
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 accountSign in
Already have an account? Sign in here.
Sign In Now