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Dear all,
I am a new comer in B&W field, and would like to perform a series of ZS test by myself. After I read several good books, I have come up with the following procedures;
Tools and material:
1) 3 film holders with 6 films
2) extra 5 holder's slide. Each one of them has drilled a
hole of 10mm, and each hole has a different location on each slide.
3) One light box (white light)
4) 8x10 camera with 300mm len
5) 1 deg. Spot light meter
Procedures:
1) setup the camera with the len, and set it to infinity.
2) Turn on the light box until the light is stable and use the spot meter to check the variation of the light is within 1/10 EV.
3) Put the light box close to the len, so that the gound glass can only show the "white light"
4) Meter the light box and reduce the reading by 5 stop, i.e. it would be Zone 0
5) replace the dark slide with the first "drilled hole slide", and shot once, then the "exposed hole" would be
Zone 0
6) Adjust the exposure by +1ev
7) Replace the dark slide with the second "Drilled hole slide", and shot once, and it would be Zone 1
8) Cont' the rest shots (from Zone 0 to Zone IX)
9) Shot all 6 film by doing the same step as above.
10) develop the 6 film by different time, read the density and plot the graph, and hopefully I can get my result.
Can anyone tell me, is there anything wrong with my
procedures???
Thanks a lot!
Jack
P.S. I am not an English speaking person, and hope you all
can understand what I meant above.
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