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by **Killakoala** on Wed Feb 16, 2005 9:42 pm

Without fear of getting skin cancer from all those nasty Infra-Red emissions through the eyepeice, i managed to get my first ever Infra-Red photographs.

Not the best subject for the world of IR but my first pics anyway.

I am not entirely happy with the result though. I guess i will have to do some reading as to how best to PP them.

They are not as good as Gooseberry's, our resident IR champion.

Here they are anyway.

Circular Quay and the MV Oriana
http://killakoala.smugmug.com/photos/15979808-M.jpg

Jefferey Street Wharf, Kirribilli
http://killakoala.smugmug.com/photos/15979809-M.jpg

The Rocks
http://killakoala.smugmug.com/photos/15979810-M.jpg

by **christiand** on Wed Feb 16, 2005 9:46 pm

Hi,

I like the first photo.
These IR images can look quite surreal !
How do these photos look like in colour ?
How much did the filter set you back ?

D70users are embarking on all sorts of experiments.
Cheers
CD

by **Glen** on Wed Feb 16, 2005 9:47 pm

Steve, Circular Quay looks like it has been snowing. What was the technique, an ir filter or rip the filter out of the camera?

by **leek** on Wed Feb 16, 2005 9:51 pm

I love the first photo - very surreal...

As requested by others... how?

by **phillipb** on Wed Feb 16, 2005 9:52 pm

Nothing wrong with the first one Killa.
I think the trick is to find suitable subjects. Green is the color most affected by infrared, but no point shooting a green chair for example if it comes out white as it would not be unusual.
Look forward seeing your next attempt.

by **Matty B** on Wed Feb 16, 2005 9:57 pm

Hey killakoala, the first exposure is a gem. So textural and the tones are perfect. It is a very interesting image, worth gazing at for quite some time. Please let us know all about the filter - I've always had a tentative interest in IR photography, but like much of photog. I'm very light on in both exp. and knowledge. Thanks for posting these - very different and fresh.

by **jethro** on Wed Feb 16, 2005 10:11 pm

very different very cool i like! tell me the guff

by **jethro** on Wed Feb 16, 2005 10:29 pm

years ago i used to shoot a bit of IR with my film SLR and had pretty good results but had to study a bit . does the D70 have some IR capability or is it filter driven?

by **pippin88** on Wed Feb 16, 2005 10:32 pm

You have to use a filter (rather expensive I believe), as the D70 has a hot mirror in front of the sensor.

by **xerubus** on Wed Feb 16, 2005 10:33 pm

jethro... it's filter driven unless you remove the hot filter... take a look at a post i did earlier about removing the hot filter...

Steve... I like the first one... however the third one really appeals to me for some reason...

well done mate... look forward to seeing more..

cheers

by **jethro** on Wed Feb 16, 2005 10:47 pm

thanks guys. good info

by **sirhc55** on Wed Feb 16, 2005 10:51 pm

Killa - I like all of them with #1 just in front

by **ozimax** on Wed Feb 16, 2005 10:56 pm

Definitely #3 (just to be different!), having the coathanger in middle background is great, well done, I think someone has started a craze here...Ozi

by **Killakoala** on Wed Feb 16, 2005 11:19 pm

How was it done?

Easy really.

The IR filter is a Cokin P-series 89b IR filter. Cost is about $70. (Part number P.007)

I just whacked it on the end of the kit lens, mounted the tripod on the Cahill expressway overpass and shot for about 1/2 a second for the Circ Quay shot. I had to compose the image without the filter mounted as it is near impossible to see anything with it on. Also manual focus.

PP consisted of nothing more than, colour to B&W, Curve to get the contrast how i liked it and USM followed by crop and resize.

Here is the first photo original resized only. As you can see the band pass frequency is only in the high red end of the spectrum.

by **gooseberry** on Thu Feb 17, 2005 2:42 am

Great shots Steve, like the first two - nice composition. B&W IR pictures are very nice...

I'll try and post up a quick run down on IR with the D70 tomorrow morning (tomorrow afternoon AEST).

But essentially the process is filter based as Killa mentioned - it still needs to be filter based even if you remove the AA low pass filter in front of the sensor as you need to remove the visible part of the spectrum - IR filters like the Hoya R72 or in Steve's case the Cokin 89b filter out most visible light and only let through infra-red.

by **BBJ** on Thu Feb 17, 2005 6:30 am

Nice shot that first 1 steve, i guess it's different and job well done.
Oriana hey, well i went for a cruise on the original Oriana many years ago when i was younger and my parents sold there farm.
Cheers
John
Oh yea spent most time in the pool, was only place i didn't feel seasick. LOL

by **leigh999** on Thu Feb 17, 2005 8:39 am

I agree with everyone else that the 1st photo is great - the avenue of trees really shows off the IR and the ship and bridge in the background add points of interest.

Thanks for sharing the details of your filter - I am interested in trying IR but was unsure of the filter to get. Don't want to spend the money if it doesn't work on the D70. By the by is the Cokin P-series 89b IR filter a screw in filter or is it one of those that needs to be mounted in front of the lens?

Is this and the Hoya R72 the darker (more visible light blocking) types and are there advantages/disadvantages to using less/more dark filters?

by **MATT** on Thu Feb 17, 2005 8:46 am

Killa .

I LOVE the first one ,infared pics are awesome,

May have to get my one of thos filters

Keepup the good work

MATT

by **Killakoala** on Thu Feb 17, 2005 9:18 am

leigh999 wrote:Thanks for sharing the details of your filter - I am interested in trying IR but was unsure of the filter to get. Don't want to spend the money if it doesn't work on the D70. By the by is the Cokin P-series 89b IR filter a screw in filter or is it one of those that needs to be mounted in front of the lens?

Is this and the Hoya R72 the darker (more visible light blocking) types and are there advantages/disadvantages to using less/more dark filters?

Leigh, the filter certainly works on the D70 as shown in the examples you've seen on this and other threads.

The Cokin P-Series (and A-series) filters are flat square filters that require a special mount for the front on the lens. Have a look at http://www.cokin.com for a better description and types on filters you can get. I've been using Cokin filters for years, way back to film and i still use them today with digital even though it's possible to get most of the effects with post processing in Photoshop with digital images. i still use Neutral density and a yellow filter to enhance B&W images

As far as different IR filters are concerned, i don't know what difference they make as i am still an IR newbie. But i would hazard a guess and say that they let more or less visible light through, as well as IR. When i look at a colour histogram of my images prior to PP, i can still see elements of blues, yellows and greens in the image. It's mostly red of course, but other light gets in too.

Hope that helps a bit.