GridGirl, on 16 April 2012 - 06:27 AM, said:
I'd think at that distance you'd need something like a searchlight, a....
Thank you GridGirl. You're right that's exatcly what I need
The searchlight, didn't know the exact name of this devices, I mixed up them with city beams
pritch, on 16 April 2012 - 06:31 AM, said:
... check with whoever's responsible for aviation in Ireland. The CAA like to be kept informed about what people are shining into the sky ...
cedd, on 16 April 2012 - 11:10 AM, said:
Get in touch with the IAA or ring the local airport and ask to speak to the Senior Air Traffic Control Officer. They'll probably bounce you back to the IAA though.
They'll want a contact number so they can shut you down if there's an issue.
Thanks for the tip and links guys, frankly I wasn't sure it is so important!
Shez, on 16 April 2012 - 11:56 AM, said:
Whilst doing an overnight focus at a festival last year, we discovered that the clusters of Sharpies in the DS corners of the stage could do a remarkably good job of projecting on to the clouds. The gobos didn't come out particularly big so it would be no good with a complex logo but it might be an avenue worth looking at if money is tight.
Shez, thanks for the reply. Could you please elaborate on that a bit more? I don't follow you what you mean by the cluster of Sharpies and the DS corners. Cheers
timsabre, on 16 April 2012 - 11:57 AM, said:
a large number of searchlights on the ground and make up the logo from projected "dots".
That's quite massive though
) But thanks for the suggeston
Nicktaylor, on 16 April 2012 - 12:22 PM, said:
Did I misread or have you suggested cloud base of 8km ie 8000m or about 25000 plus feet? That is very high, I assume cloud base will be say a 1000 feet......
Thanks Nick for point me out, you were right about the high. According to wikipedia article most rain clouds(what usually happens in Ireland) are in low family "C" clouds, and the distance is up to 6,500 ft (2,000 m)
greenalien, on 16 April 2012 - 01:10 PM, said:
What you are proposing is very difficult to achieve. The original Batman projected logo was simulated, not real. All that projecting onto cloud will do is scatter the light, not reflect much of it back cleanly. Better to get something like a big weather balloon or an advertising blimp and project onto that.
Thank you for the suggestion, Greenalien. I've heard about such solutions, but it's quite not fit in our art installation idea, and I am not sure a blimp will fit in our budget either
Ah I didn't mentioned it is a part of an art installation, did I?
dbuckley, on 17 April 2012 - 01:26 AM, said:
Thank you dbuckly. I've checked given website, and it looks good and what I imagined btw. That what I was thinging about at first just to apply a pattern on top of a searchlight not in front of the focus point as with gobo happens afaik.
Althought the image you presented isn't the projection onto clouds, it looks like someone photoshoped it
Once again thank you for all your input, guys! I apreaciated that much and I've learned a lot
This post has been edited by alex_r: 17 April 2012 - 06:04 AM