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DPChallenge Forums >> Tips, Tricks, and Q&A >> Infrared
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Showing posts 51 - 75 of 101, (reverse)
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 07/21/2005 11:21:09 AM · #51
I have the B+W 093 (87c) in 77mm, 62mm & 52mm. I personally like the higher cutoff than the Hoya. But here lately I've been using gels. With the gel filter holder I have it takes just a fraction of a second to remove the gel for composing the shot, and it is just as fast putting it back on. Much easier than unscrewing a traditional filter.

Cokin filters are generally junk, but it would be a cheap entry into infrared just to see if its to ones liking. Plus the P holder can be used to hold good filters like Singh Ray.

I've been shooting infrared for about 15 years, and it is what finally brought me to digital.
 07/21/2005 11:38:31 AM · #52
Hi,
I have the following questions:

-- I have been trying to get the Hoya R72 in London but seems none has. any sugessions?
-- Would be glad if someone can post the pictures taken with a canon 300D with IR72 filter and the 18-55mm lens that comes with it.
-- would like to know how you all got the red / blue tones in some of the IR pictures that you have posted. Is this what you get normally when you shoot in different lighting conditions? I thought that the pictures shot are only in B&W.

Any help on these points is greatly appreciated.
 07/21/2005 11:51:32 AM · #53
Originally posted by asitv:
-- would like to know how you all got the red / blue tones in some of the IR pictures that you have posted. Is this what you get normally when you shoot in different lighting conditions? I thought that the pictures shot are only in B&W.


An overall red toned image is what you will get with a Hoya R72 filter straight from the camera as it lets some of the red spectrum in. The images with other colors in them are usually images where the red and blue channels have been switched. The exact coloration you get will vary depending on where you set the grey balance and how you further manipulate the color.
 07/21/2005 12:41:08 PM · #54


My one and only IR shot that was worth anything
 07/21/2005 01:43:18 PM · #55
Originally posted by TechnoShroom:
I spent a weekend trying infrared with the 10D. Annoyingly frustrating to say the least. It would be fun though to have a camera that excelled at it that I could dedicate for this sort of photography.




What filter were you using, Hoya R72? What were the camera settings? You said this was frustrating with the 10D? How so? Was it due to really long shutter speeds and inability to use the viewfinder for focusing?

Inquiring minds want to know.
 07/21/2005 02:02:15 PM · #56
Originally posted by cpanaioti:
What filter were you using, Hoya R72? What were the camera settings? You said this was frustrating with the 10D? How so? Was it due to really long shutter speeds and inability to use the viewfinder for focusing?

Inquiring minds want to know.


Don't know the exact settings off hand but yes it was a Hoya R72 and I remember many of the exposures I did were up to and over a minute long. I used a Canon 50mm 1.8 because it was the only lens my 52mm filter fit. It was a pain to focus, adjust, put the filter on, take the shot, review, and then repeat till I got something usable. Oh, there were breezes on the first day. I remember that driving me nuts. If the leaves weren't moving in the foreground they were moving in the background. I was using my old tripod at the time. That didn't improve my frustration. It wasn't built for a camera as heavy as the 10D even with the featherweight lens.
 07/21/2005 08:08:22 PM · #57
One more try at this from today. I played around a little with this in PSCS with color channels...it was taken RAW B&W. Let me know if this might be a decent print or not...I'm thinking of uploading if anyone thinks it is worth it or not.

Thanks!


07/21/2005 08:26:49 PM · #58
Originally posted by TechnoShroom:
Originally posted by cpanaioti:
What filter were you using, Hoya R72? What were the camera settings? You said this was frustrating with the 10D? How so? Was it due to really long shutter speeds and inability to use the viewfinder for focusing?

Inquiring minds want to know.


Don't know the exact settings off hand but yes it was a Hoya R72 and I remember many of the exposures I did were up to and over a minute long. I used a Canon 50mm 1.8 because it was the only lens my 52mm filter fit. It was a pain to focus, adjust, put the filter on, take the shot, review, and then repeat till I got something usable. Oh, there were breezes on the first day. I remember that driving me nuts. If the leaves weren't moving in the foreground they were moving in the background. I was using my old tripod at the time. That didn't improve my frustration. It wasn't built for a camera as heavy as the 10D even with the featherweight lens.


Thank you for the insight.
 07/22/2005 01:57:53 AM · #59
In case you're interested I've looked up the settings. The first windmill shot was f16 60s. I do however see other versions that were well enough exposed at f16/f11 and 30s. The statue of Garfield was f11 11s.

The one below was f22 75s


This one was f18 30s


07/22/2005 06:00:01 AM · #60
Originally posted by TechnoShroom:
Don't know the exact settings off hand but yes it was a Hoya R72 and I remember many of the exposures I did were up to and over a minute long. I used a Canon 50mm 1.8 because it was the only lens my 52mm filter fit. It was a pain to focus, adjust, put the filter on, take the shot, review, and then repeat till I got something usable. Oh, there were breezes on the first day. I remember that driving me nuts. If the leaves weren't moving in the foreground they were moving in the background. I was using my old tripod at the time. That didn't improve my frustration. It wasn't built for a camera as heavy as the 10D even with the featherweight lens.


Any specific processing?

Message edited by author 2005-07-22 08:18:09.
 07/22/2005 06:30:09 AM · #61
Originally posted by Ennil:
Any specific processing?


Just set the grey point with Adobe Camera Raw, run any sort of levels adjustment you may want, then swap the blue and red channels.
 07/22/2005 08:08:10 AM · #62
Originally posted by Truegsht:
One more try at this from today. I played around a little with this in PSCS with color channels...it was taken RAW B&W. Let me know if this might be a decent print or not...I'm thinking of uploading if anyone thinks it is worth it or not.

Thanks!



No comment/critique on this photo? I know it is still noisy, but I left alot of that in for effect.
 07/22/2005 08:08:36 AM · #63
Originally posted by TechnoShroom:
Originally posted by Ennil:
Any specific processing?


Just set the grey point with Adobe Camera Raw, run any sort of levels adjustment you may want, then swap the blue and red channels.


Sorry for my ignorence but how do you swap red-blue channels? I am using PS 6 and PS Elements 2.0
Don't know if it is even possible with these versions.
 07/22/2005 09:20:16 AM · #64
Originally posted by asitv:
...how do you swap red-blue channels?


On the layers palette click the channels tab. Duplicate the red channel by dragging it onto the Create new channel icon at the bottom of the palette. It's the icon next to the trash can. This will create a channel named Red copy. Now make the Blue channel active by clicking on it. Select all the information in the blue channel by either Ctrl+A or via the menu Select > All. Copy the information by Ctrl+C or via the menu Edit > Copy. Make the Red channel active and paste by Ctrl+V or Edit > Paste. Make the Red copy channel active and copy as you did before. Paste this information into the Blue channel. Drag the Red copy channel to the trash and hit Ctrl+D to remove the selection. Make the RGB channel active. As you can see you've just swapped the two channels. There's probably more than one method to accomplish this but this is the way I've always done it.

EDIT:

With a normal photo this would be the result:


Message edited by author 2005-07-22 09:29:27.
 07/22/2005 09:30:01 AM · #65
Originally posted by TechnoShroom:
Originally posted by asitv:
...how do you swap red-blue channels?


On the layers palette click the channels tab. Duplicate the red channel by dragging it onto the Create new channel icon at the bottom of the palette. It's the icon next to the trash can. This will create a channel named Red copy. Now make the Blue channel active by clicking on it. Select all the information in the blue channel by either Ctrl+A or via the menu Select > All. Copy the information by Ctrl+C or via the menu Edit > Copy. Make the Red channel active and paste by Ctrl+V or Edit > Paste. Make the Red copy channel active and copy as you did before. Paste this information into the Blue channel. Drag the Red copy channel to the trash and hit Ctrl+D to remove the selection. Make the RGB channel active. As you can see you've just swapped the two channels. There's probably more than one method to accomplish this but this is the way I've always done it.


Thanks! this was a new trick to me. Gotta get that R72 some time...
 07/23/2005 04:08:56 AM · #66
Originally posted by asitv:
Originally posted by TechnoShroom:
Originally posted by Ennil:
Any specific processing?


Just set the grey point with Adobe Camera Raw, run any sort of levels adjustment you may want, then swap the blue and red channels.


Sorry for my ignorence but how do you swap red-blue channels? I am using PS 6 and PS Elements 2.0
Don't know if it is even possible with these versions.


There's also another version of swapping the red/blue channels that I use. It gives the same effect as TechnoStorm's effect but it's a lot easier to follow:

Open the channel mixer (Image>Adjustments>Channel Mixer). In the channel mixer box, you'll see a box called Output channel, choose red (If it's red then leave it like that). Change the red channel to 0% and the blue channel to a 100%. Then in choose the blue output channel from the drop down menu and now change the red channel to a 100% and the blue to a 0%
 07/23/2005 05:42:08 AM · #67
TechnoShroom & Ennil,
thanks a lot for explaining the technique...
 07/23/2005 06:32:57 AM · #68
Just using PS7:(pseudo-infrared)

07/23/2005 07:54:49 PM · #69
Well I did it!

I just bought a Sony DSC-F717 for IR work! I can hardly wait for it to get here. Now I just have to hunt down a stepup ring for my 67mm Hoya R72 filter and I am set to go!! WooHoo!

Only downside is, that it's only a 5mp image, but that's the best I could get for the thrill of handheld IR - or at least a lot less than the 25-30 seconds I have to use with my Canon 20D.

Hope this wasn't a waste :)


07/23/2005 08:03:48 PM · #70
Originally posted by asitv:
Originally posted by TechnoShroom:
Originally posted by Ennil:
Any specific processing?


Just set the grey point with Adobe Camera Raw, run any sort of levels adjustment you may want, then swap the blue and red channels.


Sorry for my ignorence but how do you swap red-blue channels? I am using PS 6 and PS Elements 2.0
Don't know if it is even possible with these versions.


The really easy way is a free PS action I found at
]//www.outdooreyes.com/photo54.php3

The ZIP file
 07/23/2005 08:35:54 PM · #71
Originally posted by papagei:
Well I did it!

I just bought a Sony DSC-F717 for IR work! I can hardly wait for it to get here. Now I just have to hunt down a stepup ring for my 67mm Hoya R72 filter and I am set to go!! WooHoo!

Only downside is, that it's only a 5mp image, but that's the best I could get for the thrill of handheld IR - or at least a lot less than the 25-30 seconds I have to use with my Canon 20D.

Hope this wasn't a waste :)


Well...you beat me on finding a 717 at a good price..I bought the 707 this morning on Ebay...shipped this afternoon and should be here by Tuesday...already have the R72 filter..let the games begin!
 07/25/2005 06:00:27 PM · #72
Alright...here is the very first photo with the new Sony F707. Please let me know what you think. I used the Hoya R72, UV filter, and ND 2 filter with the nighshot mode on. Swaped red/blue channel in CS, the auto levels.

Thanks in advance.


07/25/2005 06:09:30 PM · #73
Originally posted by Truegsht:
Alright...here is the very first photo with the new Sony F707. Please let me know what you think. I used the Hoya R72, UV filter, and ND 2 filter with the nighshot mode on. Swaped red/blue channel in CS, the auto levels.


Why did you add a UV and ND filter? Was the vignetting added or a result of all those filters stacked?
 07/25/2005 06:21:56 PM · #74
It was from all the filters...I have taken the UV filter off now. I will be working more with this Tuesday.
07/25/2005 07:20:43 PM · #75
Ive got a coolpix 8700 and take 2sec exposures at f8.0 with my r72 with pretty good results, I'll see if I can link to some later on for you (I'm at work right now).
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