[pure-silver] Re: Calibrating a dichroic head
- From: "Rob C" <forum@xxxxxxxxxxxxxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Mon, 26 Mar 2007 18:12:45 +0100
To check accuracy of ND dial you can just use a spot meter on base board. 30 is
one stop of ND and 60 is 2 stops of ND.
Also to check accuracy of the factors you can again use a spot meter on
baseboard.
eg 110M should be 1 stop difference from 0M etc.
>Durst CLS501 Head
>
>Filter Factors
>Units Y M
>00 1.00 1.00
>05 1.02 1.08
>10 1.04 1.15
>15 1.06 1.21
>20 1.08 1.26
>25 1.10 1.31
>30 1.11 1.36
>35 1.12 1.40
>40 1.13 1.44
>45 1.14 1.46
>50 1.15 1.52
>55 1.16 1.56
>60 1.17 1.60
>65 1.17 1.64
>70 1.18 1.68
>75 1.18 1.72
>80 1.18 1.76
>85 1.19 1.80
>90 1.19 1.84
>95 1.19 1.88
>100 1.20 1.92
>105 1.20 1.96
>110 1.20 2.00
>115 1.21 2.04
>120 1.21 2.08
>125 1.21 2.12
>130 1.22 2.16
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