-----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Paul Richter > Sent: 19 April 2007 10:33 > To: FlightGear user discussions > Subject: Re: [Flightgear-users] [OT]:: Darwin award candidates - > SukhoiSU62G-SIID and 5 friends > > Well then, I'm sure that all the professional photographers and thousands of > spectators at Air Tattoo would be surprised to hear that what they witnessed > was nothing but a manipulated computer image... > > http://www.airsceneuk.org.uk/airshow05/riat05/partone/riat05.htm > http://www.flickr.com/search/?q=su26&w=65891259%40N00 > > > -Paul Richter
OK, I offer an apology. Having seen the article and got some context, I agree that it happened. Still it looks suspicious (probably says more about photos on the internet in general). Would the prop been at very low rpm for this manoeuvre? Some estimation... The horizontal blur is about 6 inches (150mm), and if the aircraft speed was 100 knots (51 m/s), then the shutter speed would have been 0.15/51=1/340s (ie 1/250 or 1/500 or a digital which does whatever it likes) which is believable. If the prop was rotating at 1000rpm, then this would be 16 rps, and thus a 1/340s exposure would show a blur of ~17°. I would estimate that the blur on the prop is less than that, but it is within the range allowed by the level of estimation I have made. The shadow looks odd, but the foreshortening effect of a long lens can do that. Looking again, the vertical distance (in pixels on the image) from wingtip to wingtip is the same as on the shadow. I have convinced myself. Impressive flying. Richard ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Flightgear-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/flightgear-users
