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 . 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?
Ckw From UK - England, joined Aug 2010, 660 posts, RR: 17 Reply 3, posted (9 years 5 months 1 week 1 day 4 hours ago) and read 2735 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In this case of course the only answer is to immediatly have such a defective image withdrawn from the database
Ckw From UK - England, joined Aug 2010, 660 posts, RR: 17 Reply 5, posted (9 years 5 months 1 week 1 day 4 hours ago) and read 2712 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
Wietse From Netherlands, joined Oct 2001, 3809 posts, RR: 56 Reply 7, posted (9 years 5 months 1 week 1 day 3 hours ago) and read 2673 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
BO__einG From Canada, joined Apr 2000, 2765 posts, RR: 19 Reply 17, posted (9 years 5 months 1 week 19 hours ago) and read 2418 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..
Expanding my global domination one spotter at a time..
DLKAPA From , joined Dec 1969, posts, RR: Reply 23, posted (9 years 5 months 1 week 14 hours ago) and read 2342 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.