I have seen photos of reels for long lengths of film in which it was wound onto
a sort of drum, except the drum was just a series of thick wires arranged
parallel to the axle and forming an open cylinder. The film was just wound
onto this as a helix (like the thread of a screw). You will have to support
these wires so they do not relieve the tension on earlier turns as later ones
are put on. You can just put this in a tank, or more likely, in a tray.
I have seen an occasional 35 mm camera taking long rolls yet not hopelessly big,
like one probably intended for ID photos. Sadly, that source dried up, but
maybe you can find something similar.
Bob
Joe Herdler wrote:
Hi all
I appreciate all of the ideals about aerial photography. I was in a real
hurry when I posted my question about aerial photography in model aircraft.
I am presently building a full scale Sopwith Pup, from copies of the
original drawings. (I have about 200 hours in this so far, and another 150
to 200 to go, not including prepping an engine, which someone else will do.)
I want to experiment with the RC set up, then transfer to the 'Pup. I
ultimately want to start an aerial imaging business...even if the business
doesn't fly, (pardon the pun), I am nosey, and want to be able to make
excellent images from the air.
I have found a strange 16 mm camera on e-bay that will do single frame shots
on bulk film...I bought it and am waiting on it to arrive, and I am sure
that like everything that I have bought on e-bay that is listed in near mint
condition, I will have to spend a lot more money on it to just to get it
into working condition. Ultimately, I would like to find either a
commercial aerial camera that can be fixed in the fuselage of my plane (35
mm), or find someone who can build one. I don't have the machining skills
necessary to do that myself.
Another question if I may...does any one on the list have any knowledge of
processing bulk film I can't see myself trying to wind 100 feet of film
on a tank reel.
Thank You for entertaining my questions!!!
Joe
- Original Message -
From: Robert Monaghan [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Sunday, February 09, 2003 3:21 PM
Subject: [Cameramakers] re: aerial cameras
Actually, I'd suggest you reconsider and look in the latest issue of
NUTS and VOLTS magazine, also past issues of QST magazine (the ham radio
magazine) which deal with model airplane mounted chip color video cameras
and small 450mhz and 1.2 gigahertz tv transmitters. Chip camera with 75
milliwatt TV transmitter weigh a few ounces. With good lighting in
daytime, you get some impressive photos of the neighborhood ;-) ;-)
see also balloon borne TV http://www.qsl.net/w5sjz/balloonpj.htm - they
have a really impressive set of photos of a balloon at 90,000+ feet, you
can see clouds waaay below, with the black curved edge of atmosphere out
to the sides, very impressive. They also caught the weather balloon when
it exploded, like glass since it was so frozen at high altitude, dropping
setup to parachute to earth (GPS signal for quick recovery).
Our campus radio club is setting up an amateur television station next
weekend (receiver), and I hope to get student club $$ this month for a
transmitter (60 mile range). One exploit planned is a tethered balloon
on campus with a rotating mirror at 45 degrees to image the campus ;-)
an alternative, if you have to use film, is a relatively light 35mm point
and shoot with electronic switch trigger and motorized drive; you can use
a remote control or setup a timer (555 chip from radio shack) to pulse it
and take a photo every ten seconds or so. See kite photography and
similar links at http://medfmt.8k.com/mf/links.html for tips,
mf/aerial.html
Hope this helps bobm
* Robert Monaghan POB752182 So. Methodist Univ., Dallas Tx 75275 *
* Third Party 35mm Lenses: http://medfmt.8k.com/third/index.html *
* Medium Format Cameras: http://medfmt.8k.com/mf/index.html *
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