ampguy
Veteran
Today I was reading Mike Grahams GTN page where he mentioned that the meter should work with battery voltage of 4.6V to to 6.5V which is a wider range than I expected, so I was curious if this also applied to the GSN.
I measured my voltage with the 6V battery in the yashica-guy adapter and it was 5.81V, both with the adapter, and without. My adapter has no resistance, or voltage, so it appears to be just a wire or stick, but who knows.
Anyways, I took some exposure measurements to see where the arrow came on between 4 and 5.6, as I understand, when the yellow arrow points to the right, you need to open up a stop or you're below 1/30th. So I anchored this spot and made up a battery pack with a carboard tube, tape, and a 3V CR2 battery, along with a couple of LR44s (1.5V each) from the cat's laser toy, giving a total of 6.03V. Checked the exposure and it was the same.
So this is good news as to the regulation of this GSN H1015xxx. I've got all kinds of battery combinations that will work in this GSN. Also compared it with some digicam meters, and they were in the ballpark for center weighted mode. Time to put some film through here!
I measured my voltage with the 6V battery in the yashica-guy adapter and it was 5.81V, both with the adapter, and without. My adapter has no resistance, or voltage, so it appears to be just a wire or stick, but who knows.
Anyways, I took some exposure measurements to see where the arrow came on between 4 and 5.6, as I understand, when the yellow arrow points to the right, you need to open up a stop or you're below 1/30th. So I anchored this spot and made up a battery pack with a carboard tube, tape, and a 3V CR2 battery, along with a couple of LR44s (1.5V each) from the cat's laser toy, giving a total of 6.03V. Checked the exposure and it was the same.
So this is good news as to the regulation of this GSN H1015xxx. I've got all kinds of battery combinations that will work in this GSN. Also compared it with some digicam meters, and they were in the ballpark for center weighted mode. Time to put some film through here!
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