Am I getting mad?!

[allen l]

Yesterday, I uploaded a photo on the net, but this morning I noticed blueish diagonal lines in the sky?! I'm I the only one who notices this? If not, anyone know why they appear and if / how I can prevent this in the future?


serving a purpose by Tookaphotoof, on Flickr

[MysteryLemon]

yup I can see them... very very feint

[Tycho]

MysteryLemon said:

yup I can see them... very very feint

+1

[Simpo Two]

Same here. Was going to enhance in PS but can't download.

Processing glitch I'd say.

[MysteryLemon]

I did download and alter the levels in PS but thumbsnap wont let me reupload.

Did you convert it to B/W in post processing or in the camera?

Looks like compression on the gradient of the sky to me. are the lines on the original out of the camera (jpg or raw) or just on the low res version youve uploaded?

Here we are...

Edited by MysteryLemon on Tuesday 5th February 13:37

[allen l]

Ah thanks, so I didn't drink too much Scottish water after all...

I took photo in raw, imported it in Aperture and then reprocessed it with SilverEfex 2.
It seems I can also see it in the original raw file.

I used a Hoya HD Protect filter on the lens. Could that be the cause of this happening?

[allen l]

Simpo Two said:

Same here. Was going to enhance in PS but can't download.

Processing glitch I'd say.

If I'm correct, if you go to all sizes, you could download the file.

[PJ S]

allen l said:

Ah thanks, so I didn't drink too much Scottish water after all...

I took photo in raw, imported it in Aperture and then reprocessed it with SilverEfex 2.
It seems I can also see it in the original raw file.

I used a Hoya HD Protect filter on the lens. Could that be the cause of this happening?

Doubt it's the filter, which if it's a Skylight rather than circular polariser, then you're better off with it removed, and the lens hood used.
If it's in the RAW file then it's a case of having blown the sky - your histogram will indicate that, as will your EXIF data, in case you've EV comp applied.

You'd have needed a grad'ed ND filter or twin exposure for sky and house, then merged in post to combine the best of both.

[allen l]

Thanks PJ S. it's in the raw file. Most of my photos of that holiday had ev-1/3 applied. I only found out 'after' I got home (always check your settings, I know).

The weather in Holland probably s***s as much as in UK, but I'll have a go with your tips as soon as I have the chance to shoot some photos again.
Great to have you guys on the forum too help me understand my errors in less than a day!

---
Think I fixed it as far as you can call it fixing, but I'll have a look at it tomorrow again to double check, before replacing this version.

Edited by allen l on Tuesday 5th February 19:29