Infrared Photography

[ark19]

Hello there,
One from today. Actually the only reasonable one :embrass:

Hi Ark19,
The weather is good one minute, bad the next right now.
Today was hot and sunny but very windy.

Cheers

Hi Pablo,
nice one I like the part where the water meets the sand...
Are those people in the water?

Dennis, think we need to do more tests on the ELP filter, not as easy to post-process (pp) as R72 photos...

Tomcat, actually if you see the original ELP photo that I posted, there is no green colours. It actually changed the greens of the flora to dirty-yellow-brown colour. And the blue shelter changed to pink. The greens came out only after pp which includes channel-swapping.

Could you post a original photo taken with the cokin P007, without pp?
Like to compare the effects.

Maybe next outing we have a "IR filter's vs DC shootout"?
We can setup tripod and shoot the same subject using no filter, R72, P007, ELP and any other filters that are available.

Repeat with different cameras and we will be able to come out with a IR filter vs DC guide :think:

 

[Dennis]

Yes yes need to test more.
BTW I think there is a need to change the WB.
Most of the colour I believe could be corrected with the correct WB control.
Good idea that we test all the different filters with different cameras to see which ones match best.

Hi Pablo,
nice one I like the part where the water meets the sand...
Are those people in the water?

Dennis, think we need to do more tests on the ELP filter, not as easy to post-process (pp) as R72 photos...

Tomcat, actually if you see the original ELP photo that I posted, there is no green colours. It actually changed the greens of the flora to dirty-yellow-brown colour. And the blue shelter changed to pink. The greens came out only after pp which includes channel-swapping.

Could you post a original photo taken with the cokin P007, without pp?
Like to compare the effects.

Maybe next outing we have a "IR filter's vs DC shootout"?
We can setup tripod and shoot the same subject using no filter, R72, P007, ELP and any other filters that are available.

Repeat with different cameras and we will be able to come out with a IR filter vs DC guide :think:

 

[tomcat]

Hi Pablo,
nice one I like the part where the water meets the sand...
Are those people in the water?

Dennis, think we need to do more tests on the ELP filter, not as easy to post-process (pp) as R72 photos...

Tomcat, actually if you see the original ELP photo that I posted, there is no green colours. It actually changed the greens of the flora to dirty-yellow-brown colour. And the blue shelter changed to pink. The greens came out only after pp which includes channel-swapping.

Could you post a original photo taken with the cokin P007, without pp?
Like to compare the effects.

Maybe next outing we have a "IR filter's vs DC shootout"?
We can setup tripod and shoot the same subject using no filter, R72, P007, ELP and any other filters that are available.

Repeat with different cameras and we will be able to come out with a IR filter vs DC guide :think:

Actually, in normal coloured images, what our eyes sees as 'green' or shades of greens on our monitors come from both the colours yellow and green. You can check this in Photoshop using the Hue/Saturation adjustments and desaturating the 'Yellow' and 'Green' colours. In many normal photos with 'green' foliage, desaturating just 'Yellow' can result in almost the complete removal of the 'green' colour that we see in the image on the monitor. We can of course desaturate the observed 'green' colours by desaturating the yellow but if we intend to do so much post-processing to achieve the colours that we like, then we don't really need to use an IR filter. Just by playing around and changing the colours in the Colour Mixer and Hue/Saturation of normal coloured images like in those Digital IR actions that work on normal coloured images, can give us simulated IR colours that are almost similar to those obtained from IR filters.

Perhaps what I should have said is that if you can see 'green' colours in foliage in the IR images on the monitor, then the images would be difficult to post-process satisfactorily. Generally speaking, foliage in an IR image that is cyan in colour will post-process easily into the typical whitish coloured foliage that we have come to expect from IR images.

I did not keep any of the trial IR images taken using the Cokin IR filter on the 20D. This is because the colours are just too difficult to post-process and also because they look like dirty, badly taken normal photos. Also, unlike your D70, the long exposure required with the 20D tend to result in fogging problems due to light leakage through gaps in the Cokin filter holder inspite of all my efforts to seal them.

With all these difficulties, I have come to the conclusion that the Cokin IR filter is not too suitable for IR photography with the 20D as I have posted earlier on one or two weeks ago. The Ilford 200SX gel filter (which is almost as opaque as the R72) for the Cokin system works better than the Cokin IR filter and gives results almost similar to the R72, except that sometimes light still managed to leak through the sealed filter holder and ruin the shots.

 

[ark19]

Actually, in normal coloured images, what our eyes sees as 'green' or shades of greens on our monitors come from both the colours yellow and green. You can check this in Photoshop using the Hue/Saturation adjustments and desaturating the 'Yellow' and 'Green' colours. In many normal photos with 'green' foliage, desaturating just 'Yellow' can result in almost the complete removal of the 'green' colour that we see in the image on the monitor. We can of course desaturate the observed 'green' colours by desaturating the yellow but if we intend to do so much post-processing to achieve the colours that we like, then we don't really need to use an IR filter. Just by playing around and changing the colours in the Colour Mixer and Hue/Saturation of normal coloured images like in those Digital IR actions that work on normal coloured images, can give us simulated IR colours that are almost similar to those obtained from IR filters.

Perhaps what I should have said is that if you can see 'green' colours in foliage in the IR images on the monitor, then the images would be difficult to post-process satisfactorily. Generally speaking, foliage in an IR image that is cyan in colour will post-process easily into the typical whitish coloured foliage that we have come to expect from IR images.

I did not keep any of the trial IR images taken using the Cokin IR filter on the 20D. This is because the colours are just too difficult to post-process and also because they look like dirty, badly taken normal photos. Also, unlike your D70, the long exposure required with the 20D tend to result in fogging problems due to light leakage through gaps in the Cokin filter holder inspite of all my efforts to seal them.

With all these difficulties, I have come to the conclusion that the Cokin IR filter is not too suitable for IR photography with the 20D as I have posted earlier on one or two weeks ago. The Ilford 200SX gel filter (which is almost as opaque as the R72) for the Cokin system works better than the Cokin IR filter and gives results almost similar to the R72, except that sometimes light still managed to leak through the sealed filter holder and ruin the shots.

Wow Tomcat,
thanks for the explanation
I agree that if we need to do so much pp, then no point shooting IR...

Will do more experiments to see if the ELP filter is suitable for D70.
Based on the raw results, I still prefer the effects of R72, even with "blind" shooting....

Cheers!

 

[vortex]

Actually, in normal coloured images, what our eyes sees as 'green' or shades of greens on our monitors come from both the colours yellow and green. You can check this in Photoshop using the Hue/Saturation adjustments and desaturating the 'Yellow' and 'Green' colours. In many normal photos with 'green' foliage, desaturating just 'Yellow' can result in almost the complete removal of the 'green' colour that we see in the image on the monitor. We can of course desaturate the observed 'green' colours by desaturating the yellow but if we intend to do so much post-processing to achieve the colours that we like, then we don't really need to use an IR filter. Just by playing around and changing the colours in the Colour Mixer and Hue/Saturation of normal coloured images like in those Digital IR actions that work on normal coloured images, can give us simulated IR colours that are almost similar to those obtained from IR filters.

Perhaps what I should have said is that if you can see 'green' colours in foliage in the IR images on the monitor, then the images would be difficult to post-process satisfactorily. Generally speaking, foliage in an IR image that is cyan in colour will post-process easily into the typical whitish coloured foliage that we have come to expect from IR images.

I did not keep any of the trial IR images taken using the Cokin IR filter on the 20D. This is because the colours are just too difficult to post-process and also because they look like dirty, badly taken normal photos. Also, unlike your D70, the long exposure required with the 20D tend to result in fogging problems due to light leakage through gaps in the Cokin filter holder inspite of all my efforts to seal them.

With all these difficulties, I have come to the conclusion that the Cokin IR filter is not too suitable for IR photography with the 20D as I have posted earlier on one or two weeks ago. The Ilford 200SX gel filter (which is almost as opaque as the R72) for the Cokin system works better than the Cokin IR filter and gives results almost similar to the R72, except that sometimes light still managed to leak through the sealed filter holder and ruin the shots.

what do u use to seal your cokin?

do u think a modular hood could prevent leakage/flare???

i will definitely be using my cokin still since i also have a Ilford filter on the way. and my current pics already show leakage with the Cokin P007

 

[tomcat]

what do u use to seal your cokin?

do u think a modular hood could prevent leakage/flare???

i will definitely be using my cokin still since i also have a Ilford filter on the way. and my current pics already show leakage with the Cokin P007

In the Cokin filter holder, when the filter is slotted into even the slot closest to the lens, there are gaps (on top, bottom and sides) between the filter and the holder through which light can leak in. I would have thought that this would not be very serious in the case of the D70 because of the very short exposure times needed for IR photography.

The modular hood would only prevent flare caused by light hitting the surface of the filter just like a normal lens hood but not prevent light from leaking through those gaps between the filter and the holder.

To seal these gaps, I cut and stick adhesive felt pads all round the opening in the filter holder such that when the filter is slotted in, it would press tightly against these pads such that light cannot get through.

You can get these adhesive felt pads from DIY stores. They are used as gliders to be stuck to the bottoms of furniture legs to protect wooden floors from scratches when the chairs or table are dragged across them.

 

[TrailsofLife]

Wow guys :bigeyes: , I think next outing die die must go hah, so many different filters! Tomcat & Adeimus also must come and share experience!

Teerex, no new image? Understand also lah, crappy weather...

Vortex, D70 did better with R72, abit troublesome to focus and put filter but the result is much better and sharper leh. I find the cokin one the color a bit too saturated on D70.

 

[Pablo]

Another call to any long time IR pro’s out there that are watching this space.
Your suggestions for Infra Red photography would be gladly received.
If you would rather remain anonymous, why not PM one of us so we can
post your knowledge and keep your identity private ?
How about it ? I am sure we all will greatly appreciate to hear from you.
Thanks.

 

[teerex]

Wow guys :bigeyes: , I think next outing die die must go hah, so many different filters! Tomcat & Adeimus also must come and share experience!

Teerex, no new image? Understand also lah, crappy weather...

Vortex, D70 did better with R72, abit troublesome to focus and put filter but the result is much better and sharper leh. I find the cokin one the color a bit too saturated on D70.

Ya lor, weather is really bad these few days. Was hoping that it will be brighter today. First thing I did this morning was look at the sky, then told myself it's going to be another day indoors.

 

[vortex]

In the Cokin filter holder, when the filter is slotted into even the slot closest to the lens, there are gaps (on top, bottom and sides) between the filter and the holder through which light can leak in. I would have thought that this would not be very serious in the case of the D70 because of the very short exposure times needed for IR photography.

The modular hood would only prevent flare caused by light hitting the surface of the filter just like a normal lens hood but not prevent light from leaking through those gaps between the filter and the holder.

To seal these gaps, I cut and stick adhesive felt pads all round the opening in the filter holder such that when the filter is slotted in, it would press tightly against these pads such that light cannot get through.

You can get these adhesive felt pads from DIY stores. They are used as gliders to be stuck to the bottoms of furniture legs to protect wooden floors from scratches when the chairs or table are dragged across them.

wow....thanks for your detailed explaination!!!! :bigeyes: :thumbsup:

so tat means its either we take up the sides and all....or i'll have to shoot in the early morning or evening to prevent bad leakage like during noon? :dunno:

Max: its not that i dont want to use a R72...but me and ark have been waiting for our R72 orders forever!!! so we got impatient and resorted to other brands and methods to satisfy our craving for IR!!!!

 

[Adiemus]

Wow guys :bigeyes: , I think next outing die die must go hah, so many different filters! Tomcat & Adeimus also must come and share experience!

Teerex, no new image? Understand also lah, crappy weather...

Vortex, D70 did better with R72, abit troublesome to focus and put filter but the result is much better and sharper leh. I find the cokin one the color a bit too saturated on D70.

Hm..... can't wait.... :cheergal: :cheergal: :cheergal:

 

[teerex]

A few days of bad weather, no new pics to post and I almost can't find this thread. Looks like this thread is weather dependant, when the weather is fine this thread is flourishing with posts, bad weather will drown out this thread and can hardly find it.

Hope tomorrow's weather is good, at least have a few hours of bright sunlight so that some of us can go out and shoot some scenes for posting to restore this thread.

 

[eawtan]

A revisit of a pic taken some months back. Personally find that post-processing extremely important for IR ....

 

[ark19]

Ya lor, weather is really bad these few days. Was hoping that it will be brighter today. First thing I did this morning was look at the sky, then told myself it's going to be another day indoors.

Yar, very dependent on weather...

Yesterday night tried taking IR with ELP filter mounted on lens with SB800.
Here is the result after PP.

Warning: Pls don't see the following in a dim room

Btw, that's my mum :sweat:

 

[Dennis]

ark, wait till your Mom sees this and the comments.
Your IR gear will be gone forever :bsmilie:

How about some IR macro ?.

Yar, very dependent on weather...

Yesterday night tried taking IR with ELP filter mounted on lens with SB800.
Here is the result after PP.

Warning: Pls don't see the following in a dim room

Btw, that's my mum :sweat:

 

[Adiemus]

Yar, very dependent on weather...

Yesterday night tried taking IR with ELP filter mounted on lens with SB800.
Here is the result after PP.

Warning: Pls don't see the following in a dim room

Btw, that's my mum :sweat:

Ooi. Don't shoot humans leh. Kinda ghostly you know....
Somemore you shoot your mother, wait all photo gear kena "chiong kong". :bsmilie:

 

[quekky]

i'll be trying out the ELP tmr at botanic, any1 wanna join me? (and give me some tips on how to shoot IR ;p)

 

[ark19]

ark, wait till your Mom sees this and the comments.
Your IR gear will be gone forever :bsmilie:

How about some IR macro ?.

Hey Dennis and Adiemus,
I may be "crazy" abt IR, I'm not crazy!
I still want more yrs to live, if she see's this, she rather finish me off and sell all my gadgets :sweat:

Err IR macro can meh? Tried macro just, very diff! :sweat:

Dennis, how's ur new "wide" toy :sweatsm:

 

[TrailsofLife]

Ark, since you have 2 pcs of ELP, why not put them together and try, maybe effect is better?

 

[teerex]

i'll be trying out the ELP tmr at botanic, any1 wanna join me? (and give me some tips on how to shoot IR ;p)

What time you going? How to contact you if I'm there? I check back on this thread tmr morning.

I'll be there in the morning if I wake up and see the sun.