controlling lighting with chrono?

[shortpants]

Would it work to build a shade over the chrono so you could control lighting or is it better to have them in the sun and just make sure the lighting stays consistant ( no clouds or shadows. ) I've been keeping mine in the shade of the awning at the range but I'm not sure if you are supposed to put them in the shade. If it doesn't hurt then why not build a shade for it?

[royinidaho]

I place a Styrofoam sheet over mine.

I noticed difference in readings between cloud and bright and when the metal shade support shadow was over one "eye" and not over the other.

[shortpants]

That's a great idea! I was thinking of building a wood cover but your idea is so much more simple. How big is the sheet of styrofoam and how do you attach it? Do you still attach the shades that come with your chrono with the styrofoam on top of them or do you just use the styrofoam? Thanks for the reply.

[royinidaho]

Originally Posted by shortpants

That's a great idea! I was thinking of building a wood cover but your idea is so much more simple. How big is the sheet of styrofoam and how do you attach it? Do you still attach the shades that come with your chrono with the styrofoam on top of them or do you just use the styrofoam? Thanks for the reply.

This was an on the spot fix.......There was a 12x24 piece of styrofoam laying around and some pieces of 1/2" PVC. A quick saw job, some holes drilled in the PVC and some grabber screws did the deed.

The piece styro isn't large enough as the shooting direction is nearly 180 degrees (South). When the sun is low in the sky I have to move the styro forwards and backwards to compensate for shadows.

No normal sky screens used. They styro is about the right shade of white..

[shortpants]

Interesting! I didn't realize the shade had to be white. After reading your response I searched the net on the subject and found some things guys have tried and it seems white paper or plastic that allows some light through works well. Thanks again for responding, I learned something new!

[sp6x6]

Dont know if I am doing something wrong, but I dont use the screens when it is overcast, seems like I dont need them. And it is like that a lot here. Use them when bright and sunny?

[royinidaho]

Originally Posted by sp6x6

Dont know if I am doing something wrong, but I dont use the screens when it is overcast, seems like I dont need them. And it is like that a lot here. Use them when bright and sunny?

When its completely overcast I've found that screens aren't necessary. However, when bright periods occur between clouds, readings change.......big time. Thus the shade is a permanent fixture...simulating a completely overcast day.