To the Editor of the Nonri-Citiwa Daty News" these methods. of obtaining correct exposure leave' (00 much {0 the user's judgment as (0 Hight conditions. Furthermore, he will often find that the subject has vanished or the light conditions have changed by the time he hay foured out the correct exposure after takin (0 consideration all the various factors of time of day, year, strength Hiaht ete.
Manoa will save himself w tot of trouble, temper and eventually expense if he Invests In one. of the ex-{inetion such ak thy be purehnemt for around $23 or go. With the extinction meter all he has to dais tu Tooke through an aperture which will give hina light value for the subject and by turning the pointer to any sivan Tight value that Ix read fu the lure he will have the correct ex: posure for any stop of his camera Shanghai, Jun. 9,
Text read from the printed page and cleaned; old type leaves the occasional error.