Hv20 exposure light cap challenge

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DavidD

Well-known member
I just finished reading Barry Green's article on how to use a cell phone to set the exposure on the HV20. Right now I am working with a Cellphone to try and get the same settings he got, but failing.
My range is from -11 to +11, but it is pretty much 1.8 most of the way through, whereas he gets:

"EXP Shutter Iris Gain

0 1/48 2.8 0dB"


I get
0 1/48 1.8 0dB

Now, is the reason because the light is too strong or not strong enough?

Thanks
 
Thanks Barry, I have gotten it to :

0 1/48 2.6 0dB with a light lens cap I made.

So I am getting there!
 
Got it. Right now I am just working on the right amount of light in the lens cap, so it is steady and the same each time. I tried the CELL PHONE trick, but it was too bright, so I am trying something different. Now it is a matter of soldering a switch, putting it together and testing again.
 
Ok,
Made a lens cap that works every time. I get the same readings as Barry Green
http://www.dvxuser.com/jason/hv20/ throughout the range from -11 to +11
When the camera is first turned on, it is 0 1/48 3.7 0dB (with the 1/2 push on the photo button), I zoom in a bit and then back out to full, check the 1/2 push button again, I am at 3.4, zoom in and out fully again, 2.8 - lock the exposure and now it works perfect (only takes about 20 seconds in all to get to 2.8). I have done this 10 times in a row, each with the exact same result. It is nice to put on the lens cap and not worry about holding a cell phone in front to achieve the same thing.

Thanks Barry!
 
Last edited:
DavidD said:
Ok,
Made a lens cap that works every time. I get the same readings as Barry Green
http://www.dvxuser.com/jason/hv20/ throughout the range from -11 to +11
When the camera is first turned on, it is 0 1/48 3.7 0dB (with the 1/2 push on the photo button), I zoom in a bit and then back out to full, check the 1/2 push button again, I am at 3.4, zoom in and out fully again, 2.8 - lock the exposure and now it works perfect (only takes about 20 seconds in all to get to 2.8). I have done this 10 times in a row, each with the exact same result. It is nice to put on the lens cap and not worry about holding a cell phone in front to achieve the same thing.

Thanks Barry!
Click to expand...


Can you please post some pics and details of your lens cap solution?

Thanks
 
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