Infrared with 20D

[magic]

Hi
I'm a new to infrared digital photography so some pointers from the experts here would be great.
I've a 20D what sort of filters do I need and do I need to shoot in any special mode?
Would I need to rely on manual focusing or auto is still ok?

Plan to experiment next week so hope to hear from you guys!

[Adiemus]

I'm not an expert ok.

Commonly used IR filters are:

HOYA R72
http://www.thkphoto.com/products/hoya/oef-15.html

B+W 092, 093, 099
http://www.schneideroptics.com/filte...aphy/infrared/

A simple but not extensive test is to take a picture of your TV remote control. Have it pointed at your lens, depress a button on the remtoe and snap a picture or 2. See if you can see a light where the IR transmitter is.
If you do see a light, that suggests that it is possible for your 20D to take IR pics. However, this is not a 100% test.

THe best way is to join the IR outings and borrow the filters from some of them (I'm sure they'll be ok, as long as you take very good care of the filter) to try out on your cam.

[Adiemus]

Auto focusing is still possible. However, once you mount the filter, you will not be able to see anything through your view finder.

What we usually do is mount the cam on a tripod, compose, mount IR filter and shoot.

One more thing.... you need a stable tripod.

[magic]

Hey thanks for the speedy reply!
Do you normally shoot on Apecture priority?
When would the next IR outing be?

[adamadam]

Tell me how the remote control test goes
I'd like to know whether the 20D can do IR

[eawtan]

Checkout : http://clubsnap.org/forums/showthread.php?t=112911

[magic]

oh btw, do I need to set ISO to highest rating possible?...read some where that I had to....

[vortex]

we have a few canon IR shooters in our group..

think the only setback is they have to shoot 20-30 secs exposure.
chris is trying his best to work around this, im sure.

ask teerex out for shoot...he everyday also can!!!!!!

[PandaOng]

Hey I own a 20D and shoot infrared with it. Yes you are able to shoot infrared with 20D with a Hoya R72. the setback is that the exposure for the 20D is very long.

For my setting, i usually shoot at f8 15sec and ISO 400. if you need to you can pump up the ISO to get a shorter exposure. but that will have to depend on situation.

I am still trying out with different filter to see which work best and give me a shorter exposure...so meanwhile....long exposure...heehee

[loupgarou]

actually, I may settle for hoya r72, or the 89b harrison. reason, I realise that if you choose a weaker filter, you may have a shorter exposure but the red in the image is too much. and when you post process, the red becomes a blue cast.

[magic]

actually I would like some red in the pictures as I'm trying to mimic the effect of colour infrared film pictures. So do you think I shld use a weaker filter?

[loupgarou]

if you want weaker, try the Edmund optics filters.

[magic]

any particular model no.? Can I get them from CP?

[loupgarou]

CP cannot, you must get from edmund optics direct (check the past few threads on this) . eawtan may have spares once he does his evaluation..

but for canon 20d, edmundfilters don't cut it.

[tomcat]

For Canon 10D & 20D, best to stick to Hoya R72 or Ilford SFX200 infrared filters. They give nice coloured IR images which could be easily converted to more monochromatic ones (the current 'flavour-of-the-day' it would seem) if so desired.

[Pablo]

Hi magic,

I use a 20D, I find the best lens I have for IR so far is the 50mm f1.8II USM.

My exposure time is around 2.5 to 3.5 sec at f8 to f11 (varies on light)

I use 400ISO for my shots reguardless.

I use auto focus first, then switch to manual when I put the IR filter on (stops the camera from trying to re-focus).

I find if you focus in manual and then screw on the IR filter, you are likely to move the focus.

My 28-135mm f/3.5-6.5 IS USM requires a much longer exposure time and hence I get hot spots.

I have some photos in the IR gallery and also at the IR link in my signature below.

Cheers.