Striped sky ...? - DPChallenge Forums

Canon EF 85mm f/1.2L II USM

10/27/2006 12:58:15 PM · #1

Anyone have a clue what's cuasing the stripes in the sky? I'm getting these in almost every sky I take. With polarizer, without, whatever. If the sky is blue, I'm getting stripes.

100% crop converted from RAW bumped up contrast to make it easier to see. No polarizer on this sky.

NstiG8tr

Canon EOS-5D Mark IV

10/27/2006 01:00:16 PM · #2

I really don't have a clue. I'd just say it's time for a new toy Leroy.

scarbrd

Leica M10

Leica 35mm f/1.4 Summilux M Aspherical MF - Black

10/27/2006 01:03:00 PM · #3

what is the exposure and ISO settings?

Have you tried different ISO settings? Is noise reduction turned on?

Need more info.

cryingdragon

Canon EOS-10D

Canon EF 70-200mm f/4.0L USM

10/27/2006 01:05:39 PM · #4

just mask the sky in all of your pictures and bump up your NI to max...that'll get rid of it. :P

Message edited by author 2006-10-27 13:05:45.

Canon RF 24-70mm f/2.8 L IS

10/27/2006 01:06:49 PM · #5

Originally posted by scarbrd:

what is the exposure and ISO settings?

Have you tried different ISO settings? Is noise reduction turned on?

Need more info.

ISO 100 1/200 sec at f/8. Although I'm getting the same over a wide range of shutter speeds and apertures. Don't know about ISO, I rarely come out of 100.

No noise reduction.

kirbic

Canon EOS R5

10/27/2006 01:10:34 PM · #6

Leroy, were the stripes originally horizontal or vertical, or at an angle like this?

10/27/2006 01:14:04 PM · #7

Is it more pronounced at f/22? If so, it may represent a film on your sensor. Have you done your own cleaning? It could be streaks.

10/27/2006 01:16:52 PM · #8

Originally posted by kirbic:

Leroy, were the stripes originally horizontal or vertical, or at an angle like this?

This is the original orientation with the camera in portrait orientation.

Fisher Price Kid-Tough Digital

10/27/2006 01:18:28 PM · #9

Originally posted by DrAchoo:

Is it more pronounced at f/22? If so, it may represent a film on your sensor. Have you done your own cleaning? It could be streaks.

I haven't cleaned the sensor since I got the camera, LOL. But, I did buy it used, so you may be right on that.

Bugzeye

10/27/2006 01:24:01 PM · #10

You should lock up the mirror and shine a light down in there once and see if it looks like it is streaked. perhaps a simple wipe can fix your prob... however would seem to be a rather odd pattern to be streaks from cleaning unless the person wiped it with diagonal strokes.

Message edited by author 2006-10-27 13:26:16.

kenskid

Nikon D700

Nikon AF-S NIKKOR 24-70mm f/2.8G ED

10/27/2006 01:24:48 PM · #11

Reshoot at f22 or higher and post that shot.

kskid

10/27/2006 01:27:55 PM · #12

you aren't using a crappy 80-200mm lens are you? ;)

10/27/2006 01:29:40 PM · #13

Originally posted by kenskid:

Reshoot at f22 or higher and post that shot.

kskid

I'll have to do that another day... would be hard to tell the stripes from the rain patterns today... LOL... nasty outside.

But, if f/22 makes the pattern worse, I can be pretty sure it's sensor streaks?

Nikon AF-S NIKKOR 24-70mm f/2.8G ED

10/27/2006 01:31:34 PM · #14

Originally posted by DrAchoo:

you aren't using a crappy 80-200mm lens are you? ;)

Nah, lol, that was with a decent 50 mm 1.8 ... btw, I like that crappy 80-200. A bit slow, but for what I use a zoom for it does just fine.

kenskid

Nikon D700

10/27/2006 01:44:41 PM · #15

Yes...IMO...shooting at f22 will "magnify" anything on your sensor. If streaks get more "defined" when shooting at f22 then my guess is that it is some kind of funk on your sensor. Cleaning with "copperhill" will likely help...but be careful and follow instructions.

Kenny

Originally posted by fotomann_forever:

Originally posted by kenskid:
Reshoot at f22 or higher and post that shot.

kskid

I'll have to do that another day... would be hard to tell the stripes from the rain patterns today... LOL... nasty outside.

But, if f/22 makes the pattern worse, I can be pretty sure it's sensor streaks?

10/27/2006 01:49:05 PM · #16

Just shoot a white piece of paper at f/22. You don't need to shoot the sky. You don't even need to be in focus. Then hit auto contrast in PS and you'll see all your dust bunnies and whether the mysterious streaks are there.

10/27/2006 01:52:48 PM · #17

No lens

and 100% crop

10/27/2006 01:59:23 PM · #18

Well, they are definitely there. I think it's on your sensor. Whether it's schmutz from a failed cleaning or not, I'm not sure. I'm surprised you don't have dust spots though. Try it WITH the lens, out of focus but properly exposed so we aren't blowing out any detail there.

Sick of doing this yet?

10/27/2006 02:01:43 PM · #19

f/22

100% crop

Oh yeah, I got spots ... LOL

10/27/2006 02:06:14 PM · #20

Ya, they are still there. I'd try to clean your sensor and see if it helps. Remember to use methanol like the Copperhill method suggests. I tried 90% rubbing alcohol at first (more available), but the 10% water left streaks (although bigger than this). You need something that evaporates very cleanly and evenly.

Tamron 70-180mm F/2.8 Di III VXD

10/27/2006 02:08:08 PM · #21

Originally posted by DrAchoo:

Thanks man, I think I may go order the copperhill kit... lord knows my sensor needs a good cleaning anyway.

MadMan2k

Sony Alpha a6400

10/27/2006 02:15:11 PM · #22

I'm all for the scotch tape method (Deapee has some threads about how to use it). It's cheap, works well, doesn't involve potentially smearing crap all over the sensor with a brush, etc.

10/27/2006 02:16:43 PM · #23

Originally posted by fotomann_forever:

Originally posted by DrAchoo:
Ya, they are still there. I'd try to clean your sensor and see if it helps. Remember to use methanol like the Copperhill method suggests. I tried 90% rubbing alcohol at first (more available), but the 10% water left streaks (although bigger than this). You need something that evaporates very cleanly and evenly.

Thanks man, I think I may go order the copperhill kit... lord knows my sensor needs a good cleaning anyway.

Since I like to do things on the cheap you can duplicate the kit with the following:

1) a rubber spatula cut down to about the width of the handle (or smaller).

2) kimwipes (probably can get at either a photoshop or a labratory supply shop. They are basically lint free kleenex that are used in labs for test tubes and such.

3) methanol. call around.