FAQ FAQ  Forum Search   Events   Register Register  Login Login

Topic ClosedIR images (3)

Page  <1 56789 20>
Author
punkskaphil View Drop Down
Senior Member
Senior Member

Joined: 18 July 2006
Country: United Kingdom
Location: United Kingdom
Status: Offline
Posts: 407
Direct Link To This Post Posted: 27 October 2015 at 15:39
I recently had my old A700 converted to IR 720nm and I've done a few quick tests. Apart from the first shot, the others were all taken a bit late in the day and the sun had almost set.

All A700 with Minolta 24/2.8 RS.









A7RIV, SEL200600G, 85/1.4 G RS, ∑24-70/2.8, Hartblei SR 35/2.8, ∑70-200/2.8, ∑150/2.8,
Website
 



Back to Top
waldo_posth View Drop Down
Alpha Eyes group
Alpha Eyes group

Joined: 01 August 2012
Country: Germany
Location: Potsdam
Status: Offline
Posts: 6380
Direct Link To This Post Posted: 03 November 2015 at 21:08
Sanssouci Palace, Potsdam



Sony NEX-3 w/o UV/IR filter + 950 nm IR filter
"Stare, pry, listen, eavesdrop. Die knowing something. You are not here long." (Walker Evans)   http://www.flickr.com/photos/waldo_posth/
Back to Top
stavros78 View Drop Down
Groupie
Groupie

Joined: 14 July 2014
Country: Greece
Status: Offline
Posts: 141
Direct Link To This Post Posted: 08 December 2015 at 19:43
Nex6 IR converted (720nm) from Epirus, Greece


IR.Ioannina III by Stavros Dimitrakopoulos, on Flickr

Edited by stavros78 - 26 December 2015 at 10:56
Back to Top
stavros78 View Drop Down
Groupie
Groupie

Joined: 14 July 2014
Country: Greece
Status: Offline
Posts: 141
Direct Link To This Post Posted: 26 December 2015 at 10:55
Some more from Epirus, Greece


Sirrako


IR.Ioannina I by Stavros Dimitrakopoulos, on Flickr


Tsepelovo


IR.Ioannina II by Stavros Dimitrakopoulos, on Flickr


Kalarites


IR.Ioannina IV by Stavros Dimitrakopoulos, on Flickr
Back to Top
jalu View Drop Down
Senior Member
Senior Member

Joined: 03 October 2010
Country: Poland
Location: Pruszków
Status: Offline
Posts: 1463
Direct Link To This Post Posted: 30 December 2015 at 19:50
Barbara

A300 IR + sigma macro 90/2,8
I use google English.
I use a Sony Alpha, but it's not the same thing.
Back to Top
garyinhere View Drop Down
Senior Member
Senior Member

Joined: 22 March 2014
Country: United States
Location: Oklahoma
Status: Offline
Posts: 454
Direct Link To This Post Posted: 31 December 2015 at 01:10
This is probably a simple question. How do you get the different colors? I know how to switch the color channels to make the sky blue, but I don't know how to get the greens or purples ect... I did make some pink trees, but I had to paint them.
I also get a strong blue in the foliage when I swap channels.

148-365 by garyinhere, on Flickr
"We can do no great things, only small things with great love" Mother Theresa
 



Back to Top
Micholand View Drop Down
Admin Group
Admin Group
Knowledgebase Contributor

Joined: 30 October 2005
Country: Germany
Location: MUC
Status: Offline
Posts: 16808
Direct Link To This Post Posted: 31 December 2015 at 09:17
The "different colours" strongly depend on the type of IR filter used as well as white balance.
And there will not be any "green" at all in a "false colour" IR shot

After channel swap you also might want to do a slight correction of image "colour" and tone to further improve the appearance, e.g. Levels or Curves adjustments for tonality and colour, respectively Color Balance or Hue/Saturation.
/Michael

DWEs don't grow on trees! | Posting images&links FAQ
Back to Top
tigertimb View Drop Down
Alpha Eyes group
Alpha Eyes group

Joined: 22 November 2007
Country: United Kingdom
Status: Offline
Posts: 5630
Direct Link To This Post Posted: 31 December 2015 at 09:41
Originally posted by garyinhere garyinhere wrote:

This is probably a simple question. How do you get the different colors? I know how to switch the color channels to make the sky blue, but I don't know how to get the greens or purples ect... I did make some pink trees, but I had to paint them.
I also get a strong blue in the foliage when I swap channels.
Looking at your image, there is a blue tint across the whole thing that suggests to me that there was a red tint everywhere before you swapped channels. I found that Lightroom didn't let me set the white balance to the extreme that was needed and so I ended up using a custom white balance set in camera while pointing at something that should be white (i.e. the clouds) (but that does mean you can't use the RAW, unless you know of any post processing software that faithfully obeys the extreme white balance set in the exif)

And if you want to play with the colours, you don't need to do a straight channel swap - you can mix the percentages a little and get different colours that suit your image - so keep say 10-15% of the red channel back instead of assigning 100% of it to the blue channel - experiment

Oh, and sunshine makes the biggest difference, folliage can come out quite dark without it
Tim
If you appreciate comments on your photos, how about returning the favour to others . . .
Back to Top
Micholand View Drop Down
Admin Group
Admin Group
Knowledgebase Contributor

Joined: 30 October 2005
Country: Germany
Location: MUC
Status: Offline
Posts: 16808
Direct Link To This Post Posted: 31 December 2015 at 10:05


If Photoshop and ACR (Adobe Camera Raw) or Lightroom is used as raw converter, a special IR camera profile via Adobe's DNG profile editor can be defined which has the WB tweaked such in the profile, that in the end the sliders for WB and tint are centred again and not moved out all the way to the left extremes.

For more on this, see the PDF documentation of DNG profile editor here; especially the Tutorial 4: Infrared-Modified Cameras and Unusual Lighting.
/Michael

DWEs don't grow on trees! | Posting images&links FAQ
Back to Top
garyinhere View Drop Down
Senior Member
Senior Member

Joined: 22 March 2014
Country: United States
Location: Oklahoma
Status: Offline
Posts: 454
Direct Link To This Post Posted: 01 January 2016 at 00:57
I knew I forgot stuff
I should've mentioned that I do use Adobe's DNG editor.
I use a Sony NEX6 converted to 720.
I set white balance on a green tree.... Should I have set it on a what surface?
I'm sure I'm still missing a lot of info, sorry.
Here's the same picture straight out of camera.
All the help you all are giving me is great and appreciated!
DSC03184 by garyinhere, on Flickr
"We can do no great things, only small things with great love" Mother Theresa
Back to Top
garyinhere View Drop Down
Senior Member
Senior Member

Joined: 22 March 2014
Country: United States
Location: Oklahoma
Status: Offline
Posts: 454
Direct Link To This Post Posted: 25 January 2016 at 23:29
Still need a bit of help...
"We can do no great things, only small things with great love" Mother Theresa
Back to Top
Micholand View Drop Down
Admin Group
Admin Group
Knowledgebase Contributor

Joined: 30 October 2005
Country: Germany
Location: MUC
Status: Offline
Posts: 16808
Direct Link To This Post Posted: 22 May 2016 at 18:26
High time to feed this latent thread again

#N329



#N330



#N331



#N332



#N333


NEX-5N (full-spectrum converted) | Zenitar 16/2.8 Fisheye | IR720 Filter 30.5mm


Edited by Micholand - 09 July 2017 at 11:11
/Michael

DWEs don't grow on trees! | Posting images&links FAQ
Back to Top
kerrath View Drop Down
Senior Member
Senior Member

Joined: 07 July 2012
Country: United States
Location: LowerCalifornia
Status: Offline
Posts: 1672
Direct Link To This Post Posted: 23 May 2016 at 01:12
Originally posted by garyinhere garyinhere wrote:

Still need a bit of help...
I always do the white balance manually. If you think about what you want to end up with (blue sky and either pink/green/yellow foliage) you need to have the opposite in the photo while developing RAW. The sky should be red with a hint of green, and foliage should either be evenly green and blue (for yellows) or slightly more blue if you want pink. Set a few point samples in ACR while tweaking the values, and don't be afraid to temporarily blast the saturation to be very sure what colors you have.

Originally posted by Micholand Micholand wrote:

High time to feed this latent thread again
N330 and N332 for me. I love seeing water in IR images and the contrast of the near white foliage with darker buildings is beautiful.

I really need to get my A65 converted and get back into IR!

Back to Top
jalu View Drop Down
Senior Member
Senior Member

Joined: 03 October 2010
Country: Poland
Location: Pruszków
Status: Offline
Posts: 1463
Direct Link To This Post Posted: 23 May 2016 at 07:01
My new instrument

Grodzisk Mazowiecki Park

A3000 + Tokina 17/3,5 IR 650nm (panorama 5 foto)

Kamil

A3000 + KO-120M (aperture lens honeycomb) IR 680 nm
I use google English.
I use a Sony Alpha, but it's not the same thing.
Back to Top
Dyxum main page >  Forum Home > Dyxum Photographs > Themed Views Page  <1 56789 20>

Forum Jump Forum Permissions View Drop Down



This page was generated in 0.078 seconds.

Monitor calibration strip

Dyxum.com - Home of the alpha system photographer

In memory of Cameron Hill - brettania

Feel free to contact us if needed.