September IR Posting Thread - DPChallenge Forums

Canon EF 24-105mm f/4.0L IS

09/07/2008 03:16:13 PM · #51

My backyard

SimonS

Canon EOS-40D

09/07/2008 03:59:58 PM · #52

Republic Square

09/07/2008 04:23:43 PM · #53

Balance

dainmcgowan

Canon EOS-350D Rebel XT

Canon EF 50mm f/1.8 II

09/07/2008 05:38:34 PM · #54

Canon EF 17-40mm f/4.0L USM

09/07/2008 06:14:56 PM · #55

Now, I'm really jealous of all the color IR photos. Mine come out all green, and I'd love to get something out of there besides black and white.

Is there a secret, or do I need a different camera?

Judi

Canon EOS-5D Mark III

09/07/2008 06:15:43 PM · #56

Originally posted by ambaker:

Now, I'm really jealous of all the color IR photos. Mine come out all green, and I'd love to get something out of there besides black and white.

Is there a secret, or do I need a different camera?

That is why I bought a Nikon D70s with a Hoya R72 filter...specifically to get the 'coloured' IR's.

pearlseyes

Canon EOS R7

Tamron SP AF 28-75mm f/2.8 XR Di for Canon

09/07/2008 06:23:35 PM · #57

shot with Olympus C-765uz

09/07/2008 08:00:39 PM · #58

Originally posted by ambaker:

Now, I'm really jealous of all the color IR photos. Mine come out all green, and I'd love to get something out of there besides black and white.

Is there a secret, or do I need a different camera?

not sure about your camera, but how are you setting your white balance? i usually set mine to a nice bright spot of green grass...

judy's right, though... for these "color" IR, it's hard to beat the nikon's a few model's back... they're low cut filter was "weaker" which is why some of the lower color spectrum gets through. it's also why my d70 can take the same shot w/ about 1/3 of the shutter speed.

Nikon AF Zoom-Nikkor 18-135mm f/3.5- 5.6G ED DX

09/07/2008 10:24:25 PM · #59

I'm thinking it may be the filter I'm using. My current filter cuts off at 950 nm. The ones others are using look to be around 720.

The F717 when you put it in night shot mode, moves the IR blocking filter out of the way, and then takes the f-stop to 2.3, and the shutter speed to around 1/60. If you try to photograph without a visible light blocking filter, everything gets blown out. (Supposedly because some people were filming ladies in sheer blouses in daylight, with the first night shot video cams. There's always that small group that ruins things for everyone else.)

Guess I'll pop for a R72 and see how that works.

JeffryZ

Nikon D80

09/07/2008 10:33:27 PM · #60

Blue Leaf

I tried it in color, but it was mostly monochromatic anyways so I decided to work with a black and white version since I had a better quality image to work with too. It is a simple leaf sitting on the rail of my balcony railing and lit by the low, evening sun. I decided to take advantage of the long shadows in the composition. This is not cropped.
First, the original- only rotated and resized, no other processing:

I decided to also take advangage of the fact that the brightness of the leaf was not the same as the brightness of the background to try to get some colors out of the image.
So after a basic Levels adjustment, I opened a "Selective Color" layer. I think the intent of this proceedure was to help get a proper color balance between light and shadow parts of an image. I wanted to do the opposite- make their color balance farther apart. Starting with the "Black" channel, I played around with the color sliders to make the darker portions of the image more blue. Next, I chose the "Neutral" channel and used the sliders to push the colors of it more towards the red and yellow. I did the same with the "White" channel- even though there was not really much in it to work with.

Now I have some different colors I can work with. If I had started with Channel Mixer or Hue/Saturation, any color changes would have been applied to the entire image so I would not have gotten any different colors. Now I can use the Hue/ Saturation to increase or decrease the saturation of the colors I have extracted. Then a bit of cleaning up spots, some dodging/ burning (2%) for a bit of vignetting, resize (using Bilinear- I like it better than one of the Bicubic options since it allows me to choose how much sharpening to add instead of it doing it automatically), smart sharpen, and save. Here is the result:

Playing around with processing is part of the fun with infrared images.

09/07/2008 10:59:39 PM · #61

Originally posted by ambaker:

I'm thinking it may be the filter I'm using. My current filter cuts off at 950 nm. The ones others are using look to be around 720.

yep. that might just be it...

09/07/2008 11:00:07 PM · #62

Originally posted by JeffryZ:

Playing around with processing is part of the fun with infrared images.

yeah it is...

and lovely image you got out of it, too...

Nikon AF Zoom-Nikkor 18-135mm f/3.5- 5.6G ED DX

09/07/2008 11:02:27 PM · #63

since i had time to take some pics, and since i had a couple of the youth from church agree to model for me, i'm getting a little ahead and posting tomorrow's shot. (this is the same girl from the previous pic...)

Young Hearts

JeffryZ

Nikon D80

09/07/2008 11:11:39 PM · #64

Originally posted by ambaker:

Now, I'm really jealous of all the color IR photos. Mine come out all green, and I'd love to get something out of there besides black and white.

Is there a secret, or do I need a different camera?

I am not familiar at all with the Sony Nightshot but I am wondering if that is the limiting factor for you. I see a very nice shot you took of some Flamingos at the zoo on your page here. Was that taken just in night mode or did you use an IR filter too? If it was not with a filter, you may try using it more that way and play around with processing to find ways you can coax colors out of the image. Sometimes they do not show up until you start to push things more. What are you using for software to edit them?

Canon EF 16-35mm f/2.8L USM

09/08/2008 10:44:39 AM · #65

Originally posted by JeffryZ:

To use nightshot during daylight hours, required the use of an IR filter. When nightshot is selected, the camera moves the internal IR blocking filter out of the way, and then sets the aperature to wide open, and slows the shutter speed to about 1/60 sec. (The latter being done to supposedly keep users from "seeing" through clothing.)

My current IR filter cuts off anything below about 950 nm. Which yeilds a monochrome picture with a greenish cast. So, perhaps, if I'm lucky, a R72 filter will give me more to play with.

trevytrev

Canon EOS-5D

09/08/2008 03:08:51 PM · #66

HarryY

Canon EOS-450D Rebel XSi

Canon EF-S 18-55mm f/3.5-5.6 IS

09/08/2008 06:25:56 PM · #67

Ok well today the sun made a guest appearance in Hampshire, England so here are a few images to bring me back up to day 8

trevytrev

Canon EOS-5D

Canon EF 16-35mm f/2.8L USM

09/08/2008 07:05:22 PM · #68

Per a question by

harryY

Anyway of channel swapping in elements 4??

Cant find it if there is...

From what I read on the web there is no channel mixer or action that will channel swap in elements 4. You could use a hue/sat layer and go to the red channel and slide the hue adjustment to blue and go to the blue channel and slide the hue adjustment to red. not as easy and exact but you could get close I would guess. I'll give it a try tonight and see if it works.

HarryY

Canon EOS-450D Rebel XSi

Canon EF-S 18-55mm f/3.5-5.6 IS

09/08/2008 07:22:27 PM · #69

Originally posted by trevytrev:

Per a question by harryY

Anyway of channel swapping in elements 4??

Cant find it if there is...

From what I read on the web there is no channel mixer or action that will channel swap in elements 4. You could use a hue/sat layer and go to the red channel and slide the hue adjustment to blue and go to the blue channel and slide the hue adjustment to red. not as easy and exact but you could get close I would guess. I'll give it a try tonight and see if it works.

Thanks very much, I've read that that technique can work also but that it dosnt produce such good results. I look forward to seeing what you can produce!

trevytrev

Canon EOS-5D

Canon EF 16-35mm f/2.8L USM

09/08/2008 07:24:44 PM · #70

Originally posted by HarryY:

Originally posted by trevytrev:
Per a question by harryY

Anyway of channel swapping in elements 4??

Cant find it if there is...

From what I read on the web there is no channel mixer or action that will channel swap in elements 4. You could use a hue/sat layer and go to the red channel and slide the hue adjustment to blue and go to the blue channel and slide the hue adjustment to red. not as easy and exact but you could get close I would guess. I'll give it a try tonight and see if it works.

Thanks very much, I've read that that technique can work also but that it dosnt produce such good results. I look forward to seeing what you can produce!

You're puttin the pressure on me I see:) I shall do my best!

HarryY

Canon EOS-450D Rebel XSi

Canon EF-S 18-55mm f/3.5-5.6 IS

09/08/2008 07:27:48 PM · #71

Haha no pressure, im going to bed now anyway, seeing as its half past midnight here!

Back to college again (english college that is, where you are 16-18 years old) tomorrow... alot less DPC time will be available I fear.

But I can shun work for at least a month before it gets outta hand ;-)

pearlseyes

Canon EOS R7

Tamron SP AF 28-75mm f/2.8 XR Di for Canon

09/08/2008 07:36:28 PM · #72

Kali