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Pls Help With Level  
User currently offlineFYODOR From Russia, joined May 2005, 661 posts, RR: 15
Posted (7 years 5 months 1 week 15 hours ago) and read 2826 times:

Hi mates,

Need your opinion and assistance.

This photo was rejected for level with comment on CW rotation.
http://www.airliners.net/addphotos/r...ections/big/20070519_LED-above.jpg

Its true that airport itself looks a bit fell to the left. But I hecked the level by horizon line (as the most true one as I think). It is obvious effect as far as the picture made from above and not directly from 'cener line' of the picture.

I made another attempt:
http://www.airliners.net/addphotos/big/ready/LED-above-1.jpg

Now airport looks in oreder but the horizon needs CCW.

So - your comments and advises a very welcome.

Regards,

Fyodor

10 replies: All unread, jump to last
 
User currently offlineJan Mogren From Sweden, joined Dec 2000, 2043 posts, RR: 50
Reply 1, posted (7 years 5 months 1 week 14 hours ago) and read 2817 times:

Yes, the new version looks better. I think the horizon looks off because some wide angle lenses have distortion that is not a perfect sphere.

/JM



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User currently offlineLanas From Argentina, joined Aug 2006, 978 posts, RR: 13
Reply 2, posted (7 years 5 months 1 week 13 hours ago) and read 2794 times:

Quoting Jan Mogren (Reply 1):
I think the horizon looks off because some wide angle lenses have distortion that is not a perfect sphere.

Exactly. If the image was taken through a wide lens, then the horizon is not that reliable and you should take the verticals at the airport instead. Amazing shot, Fyodor!  thumbsup 

Cheers!  Smile
Lanas.-



"Faithless is he that says farewell when the road darkens." J.R.R. Tolkien
User currently offlineFYODOR From Russia, joined May 2005, 661 posts, RR: 15
Reply 3, posted (7 years 5 months 5 days 17 hours ago) and read 2749 times:

Thanks guys!

Quoting Jan Mogren (Reply 1):
some wide angle lenses have distortion that is not a perfect sphere

It is indeed. But you can try to check the real horizon line by two marginal points.

Quoting Lanas (Reply 2):
should take the verticals at the airport instead

Thats what I do often but I had some rejections on that way as well. Some time, especially at hilly airports leveling is going to be difficult thing. Especially if you need to cut your image and present only part of it.

Quoting Lanas (Reply 2):
Amazing shot, Fyodor!

Thanks.  Wink Areal shoits is what I realy like.

Regards,

Fyodor


User currently offlineFYODOR From Russia, joined May 2005, 661 posts, RR: 15
Reply 4, posted (7 years 5 months 13 hours ago) and read 2664 times:

And it was rejected again twice including the appeal...

I put it here, as far as it was deleted after appeal:
http://www.airliners.net/uf/view.fil...1494&filename=1180189154UCKwO3.jpg

I'd sent quite upset comment at appeal (realy sorry for that), but I just did what was at screener's comment first time.

Well, what to do? Could you advise me please - what is the right level for this picture?..

Thanks in advance.

Regards,

Fyodor


User currently offlinePaparadzi From Malaysia, joined Jan 2005, 202 posts, RR: 4
Reply 5, posted (7 years 5 months 12 hours ago) and read 2657 times:

Try to level off by using the taxiway connecting left and right runways as horizontal reference.


Rules are made for the guidance of wise men and the obedience of fools.
User currently offlineFYODOR From Russia, joined May 2005, 661 posts, RR: 15
Reply 6, posted (7 years 5 months 11 hours ago) and read 2650 times:

Quoting Paparadzi (Reply 5):
Try to level off by using the taxiway connecting left and right runways as horizontal reference.

Thanks mate, but that was the first I did after the first rejection.


User currently offlinePsych From United Kingdom, joined Nov 2004, 3052 posts, RR: 58
Reply 7, posted (7 years 5 months 4 hours ago) and read 2627 times:
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Fyodor.

I believe that Jan had it right in his comment - the problem was the distortion caused by the wide angle, resulting in the horizon at the left and right 'drooping' quite significantly.

It is possible to correct such distortion - I made an initial attempt in this example, which is not perfect (the result would be better working with the original), but it gives an impression:

Big version: Width: 1024 Height: 683 File size: 659kb
Fyodor's Photo

Now that horizon is a lot straighter (and could be improved further, as the middle is still slightly higher than out at the edges of the shot). I think that would then resolve the issue for you. However, it would be interesting to know whether this would be considered an unacceptable 'manipulation' of the image.

Let me know if I can help some more.

All the best.

Paul


User currently offlineFYODOR From Russia, joined May 2005, 661 posts, RR: 15
Reply 8, posted (7 years 4 months 4 weeks 1 day 11 hours ago) and read 2589 times:

Paul,

Many thanks as always!

It is good idea but I think it is bad editing.

Another point - this effect is part of photographing. It is not daily shot you can make few attempts for to improve it changing distance - you need wide angle lens for it. It would be more easy to solve this solution - just to crop the sky and level off by the rwy. But it will seriously reduce the potential of the shot. Not a good idea to do it in my mind. And, sorry, but I can't agree this shot is bad and not for A.net.

So, what I'm looking for - is advise how to level it without bad editing? Or - opposite - if some of your think it is not good to send such photos at all - please say - your opinion is important for me as well.

Regards,

Fyodor


User currently offlinePsych From United Kingdom, joined Nov 2004, 3052 posts, RR: 58
Reply 9, posted (7 years 4 months 4 weeks 1 day 7 hours ago) and read 2579 times:
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Hi Fyodor.

You are very welcome.

You have my sympathy here - I agree that it is a shame such a photo is not accepted, as I am sure there are many who find these overviews very interesting. Assuming that we are correct, and that it is the horizon that is the issue, then I also agree that such editing might be considered 'manipulation'. In that case, and given that you need a very wide angle to capture such a shot, I think there would be a good case for arguing that so long as the horizon is 'balanced' around that middle higher point - i.e. 'bends' equally to either side due to the distortion - then it should not be 'punished' for not being level. I can't really see any other way of leveling it.

I wonder if there will be any crew clarification on this...?

Paul


User currently offlineFYODOR From Russia, joined May 2005, 661 posts, RR: 15
Reply 10, posted (7 years 4 months 4 weeks 8 hours ago) and read 2538 times:

Quoting Psych (Reply 9):
I wonder if there will be any crew clarification on this...?

I realy hope for this...


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