Welcome
Username or Email:

Password:


Missing Code




[ ]
[ ]
Online
  • Guests: 116
  • Members: 0
  • Newest Member: omjtest
  • Most ever online: 396
    Guests: 396, Members: 0 on 12 Jan : 12:51
Members Birthdays:
One birthday today, congrats!
a.gutzeit (64)


Next birthdays
05/08 wpk5008 (35)
05/09 Alfons (37)
05/09 Coronafix (52)
Contact
If you need assistance, please send an email to forum at 4hv dot org. To ensure your email is not marked as spam, please include the phrase "4hv help" in the subject line. You can also find assistance via IRC, at irc.shadowworld.net, room #hvcomm.
Support 4hv.org!
Donate:
4hv.org is hosted on a dedicated server. Unfortunately, this server costs and we rely on the help of site members to keep 4hv.org running. Please consider donating. We will place your name on the thanks list and you'll be helping to keep 4hv.org alive and free for everyone. Members whose names appear in red bold have donated recently. Green bold denotes those who have recently donated to keep the server carbon neutral.


Special Thanks To:
  • Aaron Holmes
  • Aaron Wheeler
  • Adam Horden
  • Alan Scrimgeour
  • Andre
  • Andrew Haynes
  • Anonymous000
  • asabase
  • Austin Weil
  • barney
  • Barry
  • Bert Hickman
  • Bill Kukowski
  • Blitzorn
  • Brandon Paradelas
  • Bruce Bowling
  • BubeeMike
  • Byong Park
  • Cesiumsponge
  • Chris F.
  • Chris Hooper
  • Corey Worthington
  • Derek Woodroffe
  • Dalus
  • Dan Strother
  • Daniel Davis
  • Daniel Uhrenholt
  • datasheetarchive
  • Dave Billington
  • Dave Marshall
  • David F.
  • Dennis Rogers
  • drelectrix
  • Dr. John Gudenas
  • Dr. Spark
  • E.TexasTesla
  • eastvoltresearch
  • Eirik Taylor
  • Erik Dyakov
  • Erlend^SE
  • Finn Hammer
  • Firebug24k
  • GalliumMan
  • Gary Peterson
  • George Slade
  • GhostNull
  • Gordon Mcknight
  • Graham Armitage
  • Grant
  • GreySoul
  • Henry H
  • IamSmooth
  • In memory of Leo Powning
  • Jacob Cash
  • James Howells
  • James Pawson
  • Jeff Greenfield
  • Jeff Thomas
  • Jesse Frost
  • Jim Mitchell
  • jlr134
  • Joe Mastroianni
  • John Forcina
  • John Oberg
  • John Willcutt
  • Jon Newcomb
  • klugesmith
  • Leslie Wright
  • Lutz Hoffman
  • Mads Barnkob
  • Martin King
  • Mats Karlsson
  • Matt Gibson
  • Matthew Guidry
  • mbd
  • Michael D'Angelo
  • Mikkel
  • mileswaldron
  • mister_rf
  • Neil Foster
  • Nick de Smith
  • Nick Soroka
  • nicklenorp
  • Nik
  • Norman Stanley
  • Patrick Coleman
  • Paul Brodie
  • Paul Jordan
  • Paul Montgomery
  • Ped
  • Peter Krogen
  • Peter Terren
  • PhilGood
  • Richard Feldman
  • Robert Bush
  • Royce Bailey
  • Scott Fusare
  • Scott Newman
  • smiffy
  • Stella
  • Steven Busic
  • Steve Conner
  • Steve Jones
  • Steve Ward
  • Sulaiman
  • Thomas Coyle
  • Thomas A. Wallace
  • Thomas W
  • Timo
  • Torch
  • Ulf Jonsson
  • vasil
  • Vaxian
  • vladi mazzilli
  • wastehl
  • Weston
  • William Kim
  • William N.
  • William Stehl
  • Wesley Venis
The aforementioned have contributed financially to the continuing triumph of 4hv.org. They are deserving of my most heartfelt thanks.
Forums
4hv.org :: Forums :: General Science and Electronics
« Previous topic | Next topic »   

Mystery Photos from TDU

Move Thread LAN_403
Tesladownunder
Sat Sept 23 2006, 08:27AM
Tesladownunder Registered Member #10 Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424
Next one

Peter
1159000076 10 FT10696 Mystery31
Back to top
Penguin7471
Sat Sept 23 2006, 09:02AM
Penguin7471 Registered Member #71 Joined: Thu Feb 09 2006, 08:23AM
Location:
Posts: 63
Its your rotating mirror and motor setup, and you've taken the shot with flash just when the mirror was facing the cam? Or maybe some kind of bright artificial light behind the cam.

I guess that would also explain the lens flare to the left of the mirror.
Back to top
Bjørn
Sat Sept 23 2006, 11:22AM
Bjørn Registered Member #27 Joined: Fri Feb 03 2006, 02:20AM
Location: Hyperborea
Posts: 2058
It shows the CCD blooming problem of the Nikon D70 that causes vertical streaks. You usually need the sun or a flash to make it visible like that.

A great way to avoid that is to get an external flash and figure out how to use the wireless control. It the improvement from the internal flash is quite spectacular.
Back to top
Tesladownunder
Mon Sept 25 2006, 07:41PM
Tesladownunder Registered Member #10 Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424
A typical Australian road about 5 minutes from home. Something is not right but you have to enlarge the pic to see. It changes the whole interpretation.

Peter

Mystery 31
1159213303 10 FT10696 Mystery 31
Back to top
Self Defenestrate
Mon Sept 25 2006, 08:25PM
Self Defenestrate Registered Member #87 Joined: Thu Feb 09 2006, 01:36PM
Location: San Jose
Posts: 191
Electrostatic dust storm. You can see a whole bunch of tiny discharges inside the cloud.
Back to top
Bjørn
Mon Sept 25 2006, 08:57PM
Bjørn Registered Member #27 Joined: Fri Feb 03 2006, 02:20AM
Location: Hyperborea
Posts: 2058
It is one of them roads where cars roll uphill...

There is only one beer can in the whole picture...

No, really it is night because there are star streaks in the sky. It looks interesting, a bit like luminous raindrops.
Back to top
AndrewM
Mon Sept 25 2006, 10:21PM
AndrewM Registered Member #49 Joined: Thu Feb 09 2006, 04:05AM
Location: Bigass Pile of Penguins
Posts: 362
I was going to say that there seems to be mains service to a clump of trees on the left...
Back to top
Tesladownunder
Mon Sept 25 2006, 11:57PM
Tesladownunder Registered Member #10 Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424
This photo shows same time, same place but with the car headlights on. Just not a 5 minute exposure.

See, I told you I was going to give you a lot of streaky star photos. It just happened to be (almost) full cloud cover last night.

Peter
1159228650 10 FT10696 Astrophotographycountryroadnight
Back to top
Tesladownunder
Mon Oct 02 2006, 05:07AM
Tesladownunder Registered Member #10 Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424
Mystery Photo 35
The wonders of eBay.
Guess the power of my DPSS green laser.

Peter
1159765631 10 FT10696 Mystery 35
Back to top
Alex
Mon Oct 02 2006, 06:28AM
Alex Geometrically Frustrated
Registered Member #6 Joined: Thu Feb 02 2006, 04:18AM
Location: Bowdoin, Maine
Posts: 373
I'm guessing it's 5 or 10mW, and you used a long exposure at night, hence the flat lighting and sky, and very thick and defined laser trace.
Back to top

Moderator(s): Chris Russell, Noelle, Alex, Tesladownunder, Dave Marshall, Dave Billington, Bjørn, Steve Conner, Wolfram, Kizmo, Mads Barnkob

Go to:

Powered by e107 Forum System
 
Legal Information
This site is powered by e107, which is released under the GNU GPL License. All work on this site, except where otherwise noted, is licensed under a Creative Commons Attribution-ShareAlike 2.5 License. By submitting any information to this site, you agree that anything submitted will be so licensed. Please read our Disclaimer and Policies page for information on your rights and responsibilities regarding this site.