IR Filter
Jun 4, 2012 12:06:07 #
jeep_daddy wrote:
quote=nikonshooter quote=badriaticopo2 In infrar... (show quote)
I create a white balance preset off of the grass. Once you do this you can recall the preset. If you are using a converted camera, create this preset and leave it as that is all you will need.
Jun 4, 2012 16:57:40 #
To Pablo8:
Not sure how you can hold and look through it without either buying one or borrowing one, so I chose the first option.
Also, I used an IR film years ago and was impressed by what came out, so I didn't know that by using a filter, it would be that different.
I have, on a couple of occasions, bought a filter without first holding to the light first to see what effect it would give, namely my polarising filter and my UV filter.
Hence the reason I asked on here for someone with more knowledge than me to 'show' me where I was going wrong in my assumptions.
Not sure how you can hold and look through it without either buying one or borrowing one, so I chose the first option.
Also, I used an IR film years ago and was impressed by what came out, so I didn't know that by using a filter, it would be that different.
I have, on a couple of occasions, bought a filter without first holding to the light first to see what effect it would give, namely my polarising filter and my UV filter.
Hence the reason I asked on here for someone with more knowledge than me to 'show' me where I was going wrong in my assumptions.
Jun 5, 2012 11:42:09 #
gazzman wrote:
I've just got myself an infra-red filter, but am confused how to use it.
I screwed it onto the lens, but cannot see a thing through the veiw-finder! It is totally blacked out.
Any ideas of what I'm doing wrong will help.
Thank you :)
I screwed it onto the lens, but cannot see a thing through the veiw-finder! It is totally blacked out.
Any ideas of what I'm doing wrong will help.
Thank you :)
I didn't see it mentioned, if you use auto focus before screwing the filter on, TURN IT OFF before you push the button with the filter on, or the camera will try to focus again through the filter and you'll get an ugly (no offense, Hog) image.
iso 320, f/8, 30 second exposure with Hoya 72R filter
Jun 5, 2012 11:48:29 #
RC0448 wrote:
quote=gazzman I've just got myself an infra-red f... (show quote)
I hardly ever use auto focus whether i shoot IR or not. Just a habit that comes from the film days. You must focus before sliding the filter in. Camera focusing systems are ONLY capable of working with visible light. They, unless modified, cannot focus with IR light.
Jun 5, 2012 11:50:49 #
RC0448 wrote:
quote=gazzman I've just got myself an infra-red f... (show quote)
If you can send me the original RAW file, I will see if I can pull out the blue sky.
Jun 5, 2012 12:12:30 #
If you can send me the original RAW file, I will see if I can pull out the blue sky.[/quote]
To what address?
To what address?
Jun 5, 2012 12:31:52 #
RC0448 wrote:
If you can send me the original RAW file, I will see if I can pull out the blue sky.
To what address?[/quote]
I will send you a PM with the address.
Jun 5, 2012 23:28:55 #
RC0448 wrote:
quote=gazzman I've just got myself an infra-red f... (show quote)
I have attached your image after flipping the channels in CS6. I was thinking you had a Nikon file.....I didn't have Canon software to do the initial white balance so I gave it my best in LR4, unfortunately, the image has too much magenta. A lens hot spot shows up in the upper right.... we do have the Canon software loaded on one of our studio macs, I'll send the file back to DB and pull it tomorrow and try to white balance in Canon's software.
I could have desaturated the magenta caste using a hue saturation adjustment but that should not be needed.
White balance off of grass, move the RAW file into Canon Software and do a global white balance ...export to CS and flip channels. That's all that should be done.
There is too much magenta that could not be white balanced in LR4
Jun 5, 2012 23:48:38 #
"I have attached your image after flipping the channels in CS6. I was thinking you had a Nikon file"
Thank you very much for your time and trouble. I really appreciate it. I'm taking an IR class, and, the month of May is the first time I've ever ventured into it...first with the Hoya 72R filter and now (for the last couple days) with and ir converted Canon 50D. This helps .... Thanks :-)
Thank you very much for your time and trouble. I really appreciate it. I'm taking an IR class, and, the month of May is the first time I've ever ventured into it...first with the Hoya 72R filter and now (for the last couple days) with and ir converted Canon 50D. This helps .... Thanks :-)
Jun 6, 2012 00:09:34 #
If you want a practical demonstration of the light transmission, look through the finder at maximum aperture and shutter open. Have someone point a TV remote at you and touch a button. You should see the flash from the remote.
Apr 16, 2013 12:40:08 #
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