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A Photography Related Question ;)  
User currently offlineWietse From Netherlands, joined Oct 2001, 3809 posts, RR: 55
Posted (10 years 5 months 1 week 6 days 6 hours ago) and read 2998 times:

I have a shot accepted just now, and I have a question about it.


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Photo © Wietse de Graaf - AirTeamImages



Not really a plug, but you need to see the image opened up large to know what I am talking about.

So you opened the image? good. Now look at the contrail in the background. There is a dent/displacement there. It looks like a sloppy photoshop act. Trust me, it isnt  Smile. It is present in the RAW file as well. My question is: What caused this? it can not be a card write error I think, because the line would have to be image-wide and therefore should also appear in the tail. But it doesnt. What is this?

Wietse


Wietse de Graaf
26 replies: All unread, showing first 25:
 
User currently offlineMirage From Portugal, joined May 1999, 3125 posts, RR: 14
Reply 1, posted (10 years 5 months 1 week 6 days 6 hours ago) and read 2975 times:

no please, not another KLM...

Luis
P.S. just kidding Big grin


User currently offlineGranite From UK - Scotland, joined May 1999, 5577 posts, RR: 63
Reply 2, posted (10 years 5 months 1 week 6 days 6 hours ago) and read 2974 times:
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Wietse

You will probably find that this is some sort of vortex coming from the left wing and the effect has probably tailed off before it reached the wing.

Don't worry..............I know it wasn't Photoshopped in  Wink/being sarcastic

Cheers

Gary



User currently offlineCkw From UK - England, joined Aug 2010, 767 posts, RR: 16
Reply 3, posted (10 years 5 months 1 week 6 days 6 hours ago) and read 2969 times:

Don't know exactly, though I have seen the same thing myself (but only once or twice). My assumption is that an error occured when writing the image to the card - but I've no idea why, and it did appear to be confined to single images. Of course, I suppose it could be happening more frequently, but if the affected area is a solid colour you probably wouldn't notice it.

In this case of course the only answer is to immediatly have such a defective image withdrawn from the database  Smile

Cheers,

Colin



Colin K. Work, Pixstel
User currently offlineIL76 From Netherlands, joined Jan 2004, 2239 posts, RR: 48
Reply 4, posted (10 years 5 months 1 week 6 days 6 hours ago) and read 2962 times:

 Big grin
You CAN of course also post a close up via photobucket or your website... No cheap hits then!!
hehe... I'm kidding... It's a very nice shot.
And no, I dunno what caused the shifting...
E

PS, I saw the waving captain shot... tsk tsk, couldn't resist huh?  Big grin

EDIT: I like Gary's explanation... It could be just that...

[Edited 2004-07-09 14:33:18]

User currently offlineCkw From UK - England, joined Aug 2010, 767 posts, RR: 16
Reply 5, posted (10 years 5 months 1 week 6 days 6 hours ago) and read 2946 times:

Gary may be right in this case - on first look I didn't thing the contrail lined up again after the break, but on closer inspection it does. The effect I'd seen previously is an actual shift in the image. Possibly not the case here - you certainly can get really stange effects from vortex/jet wash

Cheers,

Colin



Colin K. Work, Pixstel
User currently offlineJofa From Sweden, joined Apr 2002, 320 posts, RR: 15
Reply 6, posted (10 years 5 months 1 week 6 days 6 hours ago) and read 2922 times:

This topic emerges from time to time...

http://www.airliners.net/discussions/aviation_photography/read.main/125993/

Search and thy shall find...


User currently offlineWietse From Netherlands, joined Oct 2001, 3809 posts, RR: 55
Reply 7, posted (10 years 5 months 1 week 6 days 6 hours ago) and read 2907 times:

Yeah, well. There is a slight problem with that thread. The image is not visible anymore. So how could I know what happened to that image?

Thanks for the comments everyone. It looks like some sort of atmospherical effect, but it just seems to me that it is too high up in the image to have been caused by the wingtip. It might just be me, but then, what other explanation can one give  Smile

Wietse



Wietse de Graaf
User currently offlineIL76 From Netherlands, joined Jan 2004, 2239 posts, RR: 48
Reply 8, posted (10 years 5 months 1 week 6 days 5 hours ago) and read 2888 times:

Wietse,
Wingflex + winglet + arched vortex (they're never straight)... That should put it quite up there...
 Smile
Ed


User currently offlineOly720man From United Kingdom, joined May 2004, 6842 posts, RR: 11
Reply 9, posted (10 years 5 months 1 week 6 days 5 hours ago) and read 2876 times:

Looks too sharp to be anything to do with the aircraft.

Andy



wheat and dairy can screw up your brain
User currently offlineGranite From UK - Scotland, joined May 1999, 5577 posts, RR: 63
Reply 10, posted (10 years 5 months 1 week 6 days 5 hours ago) and read 2861 times:
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Hi all

A mistake in my comment above.............tailed off before it reached the wing should have read 'tailed off before it reached the tail'

Cheers

Gary


User currently offlineErwin972 From Netherlands, joined May 2004, 500 posts, RR: 44
Reply 11, posted (10 years 5 months 1 week 6 days 4 hours ago) and read 2835 times:

This is not caused by writing to the CF card.

I suspect a software error/glitch during processing inside your camera.

Your camera's CPU has to handle a few Mb of information within milliseconds with each shot taken, and it is very likely that there was a glitch just during this processing time.

Erwin



My gear: Nikon, Sony, Red, Sachtler etc.
User currently offlineRotate From Switzerland, joined Feb 2003, 1491 posts, RR: 16
Reply 12, posted (10 years 5 months 1 week 6 days 4 hours ago) and read 2825 times:

i am with Erwin on that .... , but now we will never find out if the pic gained that much views in such a short time cause a) its a great pic or b) was pluged ....  Wink/being sarcastic

robin



ABC
User currently offlineSkymonster From , joined Dec 1969, posts, RR:
Reply 13, posted (10 years 5 months 1 week 6 days 4 hours ago) and read 2805 times:

Vortex off the winglet arching upwards and rearwards... Can't believe I just gave Wietse a hit to tell him that though!  Crying

Andy


User currently offlineOly720man From United Kingdom, joined May 2004, 6842 posts, RR: 11
Reply 14, posted (10 years 5 months 1 week 6 days 4 hours ago) and read 2791 times:

Could a winglet vortex have any affect here??? Especially across the contrails?


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wheat and dairy can screw up your brain
User currently offlinePUnmuth@VIE From Austria, joined Aug 2000, 4163 posts, RR: 54
Reply 15, posted (10 years 5 months 1 week 6 days 2 hours ago) and read 2748 times:

The same effect can be seen on this photo. Check the upper left corner of the building.

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Photo © Fabian Gysel





-
User currently offlineSkymonster From , joined Dec 1969, posts, RR:
Reply 16, posted (10 years 5 months 1 week 6 days ago) and read 2706 times:

Take a look at these two images to see the wierd effects vortex/heat can have... Honestly, absolutely no Photoshopping involved except for the normal stuff.

Check the right wing:


How about this for a cheatline and forward fuselage:


Andy


User currently offlineBO__einG From Canada, joined Apr 2000, 2771 posts, RR: 18
Reply 17, posted (10 years 5 months 1 week 5 days 21 hours ago) and read 2652 times:

Wow.. This is quite intriguing.

Air is More than just a simple breathe in and breathe out.
It can play tricks with our eyes with various phonomenons including this.
My guess is that this is most likely caused by the passing wing as its vorticies spread outwards from the trail of the wingtip. Or this just so happens when MD11 types fly over due to their unique winglets layout.

None the less it is a really neat effect. Awesome pictures too starting off with Wietse's.. Big thumbs up



Chance favors the prepared mind.
User currently offlineAviopic From Netherlands, joined Mar 2004, 2681 posts, RR: 41
Reply 18, posted (10 years 5 months 1 week 5 days 21 hours ago) and read 2643 times:

Very nice Wietse  Big thumbs up
I was hoping you would make one like this of the Connie flight last Monday.
Maybe it's in your files somewhere ?



The truth lives in one’s mind, it doesn’t really exist
User currently offlineQ330 From Australia, joined Dec 2003, 1460 posts, RR: 21
Reply 19, posted (10 years 5 months 1 week 5 days 21 hours ago) and read 2636 times:

but now we will never find out if the pic gained that much views in such a short time cause a) its a great pic or b) was pluged ....

I'll go for option 'A'. Awesome pic Wietse!  Big thumbs up

-Q



Long live the A330!
User currently offlineWietse From Netherlands, joined Oct 2001, 3809 posts, RR: 55
Reply 20, posted (10 years 5 months 1 week 5 days 20 hours ago) and read 2626 times:

Thanks for the answers, I will go with it being a vortex in the sky. Seems most plausible to me. And thanks for the compliments as well.

Willem,

The connie pilot made the bend a little to late, the Connie was almost out of reach of my 100-400, so no similar shots there... I have one more in the queue at the moment:



Wietse



Wietse de Graaf
User currently offlineAviopic From Netherlands, joined Mar 2004, 2681 posts, RR: 41
Reply 21, posted (10 years 5 months 1 week 5 days 20 hours ago) and read 2620 times:

Great Wietse this is what i was hoping for !
Yeeh i should have looked through the navigators window.



The truth lives in one’s mind, it doesn’t really exist
User currently offlineWietse From Netherlands, joined Oct 2001, 3809 posts, RR: 55
Reply 22, posted (10 years 5 months 1 week 5 days 20 hours ago) and read 2618 times:

Thanks! It was one of the last performances by my 100-400 before she died... Currently on her way to a nice Canon technician to fix her.

 Big grin



Wietse de Graaf
User currently offlineDLKAPA From , joined Dec 1969, posts, RR:
Reply 23, posted (10 years 5 months 1 week 5 days 17 hours ago) and read 2576 times:

This may be a little bit far-fetched, but I have a theory. As the plane is moving at a high rate of speed, the air in front of the airplane compresses into shock waves. I think what we are seeing in each of these images is the leading edges of the compressed air distorting the image. In effect, you see where the air pressure changes are occuring.

User currently offlineN317AS From , joined Dec 1969, posts, RR:
Reply 24, posted (10 years 5 months 1 week 5 days 15 hours ago) and read 2549 times:

My vote is for windshear. Yea...that's the ticket.  Wink/being sarcastic
Nice shot Wietse.

Bill


25 Spencer : Definately some kind of writing error. Totally not an atmosperical condition. And it isn't any kind of vortex or streak of air cutting through there e
26 Apuneger : I'd also go for the writing error. Personally, I don't think we would ever see something like that with our naked eyes. It just seems way too sharp. I
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