Blue tinge?

HowardJ
Posted 04/03/2010 - 17:05 Link
I took this on Tuesday morning at approx 10:30 in good light. On my monitor and to my eyes there is a blue cast to it. Does anybody have any idea what mmay have caused it? Taken with a 18-55 Mk1. Is it the lens, is it the light or as is probably the case is it me? I've tried to get rid of it but to no avail.

[IMG]http://i83.photobucket.com/albums/j311/Tinywales/NorthWales/menaI_bridge_1.jpg[/IMG]

Any advice greatfully received and please feel free to experiment if you so wish.



Howard
Cymru Am Byth
Dangermouse
Posted 04/03/2010 - 17:10 Link
Yep, I can see it too so it isn't just your monitor!

I'm not really sure what's causing it - I have had similar effects caused by haze, and also when there's a lot of snow about which upset the auto white balance. I would suggest that it's a white balance problem assuming that the weather was clear when you took the photo.
Matt

Shooting the Welsh Wilderness with K-m, KX, MX, ME Super and assorted lenses.
pgweber
Posted 04/03/2010 - 17:15 Link
Last week I assembled all my lenses and in turn, took a picture of a dull white evening sky (minimal discernible cloud to be seen). I shot RAW images in each case.

My Pentax 16-45 & 18-55 Mk1, Samsung 50-200 and Rikenon 50mm f2 all gave a blue cast on the image.

My Tamron 28mm & 80-210mm gave a grey/white appearance to the sky.

Having reviewed other photographs taken with my 18-55, I concluded that it was not unusual to see somewhat of a blue cast.

The differentiation between Pentax/Samsung, Ricoh and Tamron might be as a result of different lens coatings applied.

Also consider which type of White Balance correction was applied.


Regards
Peter
Peter

Pentax K5
Pentax DA 18-55 Mk1, 50-200 (Samsung), 16-45, 55-300 Mk1, 35 f/2.4
Pentax MZ6 + FA28-90, FA50 f/1.4, M 50 f/1.7
Tamron 80-210mm & 28mm
Edited by pgweber: 04/03/2010 - 17:17
thoughton
Posted 04/03/2010 - 17:54 Link
Like other said, white balance seems a likely suspect.

Were there any filters on the lens?
Tim
AF - Pentax K5, Sigma 10-20/4-5.6, Tamron 17-50/2.8, Sigma 30/1.4, Sigma 70-200/2.8, Tamron 70-300/4-5.6
MF - Vivitar CF 28/2.8, Tamron AD2 90/2.5, MTO 1000/11
Stuff - Metz 58 AF1, Cactus v4, Nikon SB24, Raynox 150, Sigma 1.4x TC, Sigma 2x TC, Kenko 2x macro TC, Redsnapper 283 tripod, iMac 27”, Macbook Pro 17”, iPad, iPhone 3G
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pink
Posted 04/03/2010 - 18:15 Link
I would say WB was it on auto??

camera setting would help what program was it set to ??

James
My Fluidr

"To see in colour is a delight for the eye, But to see in black and white is a delight for the soul" ANDRI HERY
HowardJ
Posted 04/03/2010 - 19:03 Link
Thanks all for your interest and replies.

Dangermouse wrote:
Yep, I can see it too so it isn't just your monitor!

I'm not really sure what's causing it - I have had similar effects caused by haze, and also when there's a lot of snow about which upset the auto white balance. I would suggest that it's a white balance problem assuming that the weather was clear when you took the photo.
Pleased it's not my monitor nor my eyes! The weather was clear and sunny.

thoughton wrote:
Like other said, white balance seems a likely suspect.

Were there any filters on the lens?
None at all.

pink wrote:
I would say WB was it on auto??

camera setting would help what program was it set to ??

James
K10D set to AWB, Av, f16 and ISO400 and JPG. It's been cropped a bit and sharpened but not excessively. I've got a raw file but my trial version of Silkypix has expired so can't try things out. Strangely I've not noticed it before.


Howard


Cymru Am Byth
bwlchmawr
Posted 04/03/2010 - 19:46 Link
What blue haze? I just want to be there. Whitsun still seems a long way off...

Oh yes, it is a bit blue. You can sort it out in Photoshop, I expect.

That snow, the Carneddau, the Straits...

Regards,

Andrew
Best wishes,

Andrew

"These places mean something and it's the job of a photographer to figure-out what the hell it is."
Robert Adams
"The camera doesn't make a bit of difference.  All of them can record what you are seeing.  But, you have to SEE."
Ernst Hass
My website: http://www.ephotozine.com/user/bwlchmawr-199050
http://s927.photobucket.com/home/ADC3440/index
https://www.flickr.com/photos/78898196@N05
Steveninwyoming
Posted 04/03/2010 - 19:56 Link
HowardJ wrote:
I took this on Tuesday morning at approx 10:30 in good light. On my monitor and to my eyes there is a blue cast to it. Does anybody have any idea what mmay have caused it? Taken with a 18-55 Mk1. Is it the lens, is it the light or as is probably the case is it me? I've tried to get rid of it but to no avail.

[IMG]http://i83.photobucket.com/albums/j311/Tinywales/NorthWales/menaI_bridge_1.jpg[/IMG]

Any advice greatfully received and please feel free to experiment if you so wish.



Howard
Not sure about digital stuff but if you see this effect on film it is due to UV light. Try a UV filter and see what difference it makes.
Steven
Anvh
Posted 04/03/2010 - 20:04 Link
bwichmawr wrote:
Oh yes, it is a bit blue. You can sort it out in Photoshop, I expect.
Indeed, you can just use the white clouds to set the correct white balance it becomes slightly less blue then.
Stefan
Comment Image

K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
pgweber
Posted 05/03/2010 - 11:56 Link
There is a thread in the "Lenses For Pentax Cameras" forum which is currently discussing the effects of coatings.

https://www.pentaxuser.com/forum/topic/a-s-vs--da-s-18375

My experiments with lenses from different manufacturers were done using RAW files so no WB issues, where Pentax/Samsung & Ricoh looked blueish, Tamrom looked neutral.


Regards,
Peter
Peter

Pentax K5
Pentax DA 18-55 Mk1, 50-200 (Samsung), 16-45, 55-300 Mk1, 35 f/2.4
Pentax MZ6 + FA28-90, FA50 f/1.4, M 50 f/1.7
Tamron 80-210mm & 28mm
CoDa
Posted 05/03/2010 - 14:33 Link
It looks blue to me on both my laptop (IBMT61) and PC monitor.

Regards
Colin

“Nobody made a greater mistake than he who did nothing because he could do only a little.”
Edmund Burke (1729 – 1797)


[IMG]http://i941.photobucket.com/albums/ad254/weldingblues/K-7userbar-red.jpg[/IMG]

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