HI Folks recently a colleague gave me a COKIN P007 (89B) IR filter and the "P" series fittings. I have tried the Ir but just cant achieve anything with the 350D so, its free to good home provided you pay postage and packing. Or Will Trade for something that works on a 350D for IR

Looking once again at your gallery, your skill and experience are obvious, but I must ask a silly question. Are you sure you are using it correctly? Or do you just not like the effect you are getting? Some postwork is usually required to get the most out of an IR filtered image, and I know you try to do minimal postwork. I'd be curious to see one of your "rejects." If I had the right type of camera, I'd take you up on your offer. :)

ok Twopynts I am using Canon350D, Iso 1600 F11 Long delay 30 seconds + Manual Focus (obviously)

Do you have any images you took using the filter?

let me dig them out and will post some for comments

I think you will find that the camera has an anti aliasing filter on the sensor that blocks infra red light.

If you want to test a camera for sensitivity to infra red light to see if it is possible to take IR images (with a filter).

In a darkened room point a TV remote control directly at the lens of the camera. Set the camera to capture an exposure of several seconds duration eg 5 secs.
Press the volume control on the TV remote while taking the exposure.

If you get a bright spot on the exposure the camera will take IR shots, if not then it is not sensitive to IR light. The brighter the spot the better.

If you get a dull spot then it is somewhere inbetween try increasing the exposure, but keep in mind exposures will be very long for taking shots with an IR filter on.

Message edited on: 09/30/2005 14:04

Thaks Onslow done more research the 350D IS NO GOOD FOR IR. So Free TO GOOD HOME, BUT YOU PAY THE P&P

Sorry to hear that John - still at laest you have the holder for other filters. If you use PS Dave's IR actions are very good substitute you'll find them at the link.

I'm also desappointed by IR shots with 350 D and Cokin 89B(cf my last post). But mayday 142 seems to have better results with a Hoya R72 and the 350 D.

Thanks for that Lledeline will take a look at the hoya R72 many thanks again

i use the 350d with the hoya r72... i feel good! i've do a lot of infrared shots.... the short exposure was >1second, the longest... more than one minute... you can play a lot with aperture and iso settings... have you noticed a light spot in the center your shots?

HI May not seen any spots as yet, and dont think that I will because i alwys hold my hand over the viewfinder, I am just getting to grips with things, going out tomorrow with the tripod and see what i can come up with at different ISO and EV settings, think I am going to to start with the longest settings and work to the shortest So tomorrow these settings will be used ISO 1600 F4.5 30 Secs will let everyone know the outcomes.

iso 800 f4.5 and 1 second iso 100 f11.00 30 seconds... i think that the spot is created at 18mm focal lenght... at 55 i've an half spot visible... the other lenghts create me any problems... for the moment

HI All again after some research, I have managed to find out that the COKIN P007 (89B) IR filter is not too good with the 350D, but an up shot is the HOYA R72 works excellently. Heres a link for a website which gives most settings for cameras, the most usual for the 350d seems to be Avg Ev 1.6 EV 1.6 T 2.5 (this will be dependent) F 11 (so will this) ISO 1600(Alter as necessary) I would watch out for high noise at these levels, and the focus, but that should not be a major problem as long as you are careful, I think you might also get away with T 1 with a f8 and ISO 800/1600 BUT REMEMBER TO DECREASE the T anf the ISO levels. As with anything I would suggest a serious learning curve to get the best you want. I also recommend setting the camera to B&W and setting a White Balance using 18% GRAY CARD.

but there is a test image to look out to get the best out

http://heim.ifi.uio.no/~gisle/photo/ir.html

Jessops Are doing the HOYA R72 58mm Diameter for 34.99, if you look around you may be able to pick one up, But the COKIN is Around 10 cheaper from JACOBS.

TIP

Remember to remove any other filters off the lens 1st, like polarisers and skylights/uv's.

Hope its of some help.

John

Message edited on: 10/06/2005 19:01

thanks for the link! now i now what kind of lens to buy to avoid the hate spot in the center of my shots! :) btw... i think that the coloured infrared are so beautiful! i've start all in black and white... but now, i prefer convert in black and white if i'm not satisfied of the colours

HI All just ordered a HOYA R72 from JESSOPS and you have to order it.

Basic instructions for calibrating the WB and basic editing http://www.lifepixel.com/instructions.htm

yesterday i've see your link! amazing! i was lucky and there was a wonderful day, so i've tried the settings of your link!!! wowowooowoow!!!! i find them very helpful! in the next days i'll upload something with that tecnique :)

good start.. you've find a lot of different foliages for this one.... but i cannot understand... why the sky looks soooo white? have you noticed strange artefacts at 28mm or 200mm? i think that this image may be appear on your gallery for a lot of comments about it!

HI May i lfited the sky out because i wanted to see the definition of the leaves, and the DOF, then applie hue/saturation to it to get the look I desire, I think it has worked ok. at 28mm or 200mm I have not seen any artefacts, well not with my lenses, but then all mine are canon and sigma, so not really looked at the approved list as yet but will do later and see whats good and whats not john (UK)