View allAll Photos Tagged fullspectrum
Miner's Range in the Distance.
Note: If you have never done so, please read my updated profile on my thoughts about the equipment I'm using and infrared photography in general. I had the description right here, but it got too long now.
More images from the Silent Pool and Sherbourne lake, on the Albury Estate near Guildford.
Taken on a miserable rainy day from under an umbrella with a full spectrum converted Lumix DMC-GF3 fitted with a 590nm infrared filter on the lens.
The lakes were flowing through heavily with the amount of water coming off the surrounding land.
Edward Glaeser at TED2012: Full Spectrum, February 27 - March 2, 2012. Long Beach, CA. Photo: James Duncan Davidson
First pictures with Sony A7 iV as full spectrum
IR Filter 680nm, I used Capture one for post
As lens I used the Tamron 50-400 that is good for IR, a mild hot spot beyond F 10/ 13 , dependent of focal length
Photographed at the Nelson Ghost town with a 470nm infrared filter and then processed through the Nik collection
One more Fullspectrum Experiment:
I try to make the best of these days with the same subjects over and over again ... And I'm lucky I have a lot of things to do on my list: It's almost 2 years ago I got some rather strange IR-block filters.
Here I used the B+W #470. It's a blue-greenisch color, pretty dark. It's actually a technical filter, to be honest I didn't understand what exactly it was used for (maybe 40 years ago?), but I understand it blocks IR. On the Fullspectrum camera it's always easy to check this: If you see green more or less normally, IR is more or less blocked.
I needed to custom white balance there photos, again simply on the birches bark. A litte tweaking was necessary. What I get are very rich greens. Magenta comes bold, also, red is more subdued here, but it's not absent. I like the colors quite a bit, I tried to get away from a too extreme rendering, but still the cooler tones are somewhat dominant (or is it just me imagine that?)
I only used this one filter on a Minolta 70-210/4 (the manual focus variant of the famous beercan) and used it wide open (the filter needs a lot of light) and at it's minimum focus distance. Not too bad for an old zoom wide open!
One more Fullspectrum Experiment:
I try to make the best of these days with the same subjects over and over again ... And I'm lucky I have a lot of things to do on my list: It's almost 2 years ago I got some rather strange IR-block filters.
Here I used the B+W #470. It's a blue-greenisch color, pretty dark. It's actually a technical filter, to be honest I didn't understand what exactly it was used for (maybe 40 years ago?), but I understand it blocks IR. On the Fullspectrum camera it's always easy to check this: If you see green more or less normally, IR is more or less blocked.
I needed to custom white balance there photos, again simply on the birches bark. A litte tweaking was necessary. What I get are very rich greens. Magenta comes bold, also, red is more subdued here, but it's not absent. I like the colors quite a bit, I tried to get away from a too extreme rendering, but still the cooler tones are somewhat dominant (or is it just me imagine that?)
I only used this one filter on a Minolta 70-210/4 (the manual focus variant of the famous beercan) and used it wide open (the filter needs a lot of light) and at it's minimum focus distance. Not too bad for an old zoom wide open!
Full spectrum A500.
Kecay M42-42 Focus 35-90 helicoid.
EL-Nikkor 105mm @ f/11.
1 Daylight fluorescent bulb.
2 Blacklight bulbs.
While walking around Universal Studios, we found a place full of mystery. A place that looked ominous and foreboding. A temple with its entrance decorated with snakes. We entered the gates and it seemed even the clouds watched. I stopped to take this capture, to document our adventure and the mysteries on the other side...
This image was taken in with a Sony A55 converted to full-spectrum with an infrared lens filter. It was taken in RAW and processed in Linux using RawTherapee.
Jim Stengel at TED2012: Full Spectrum, February 27 - March 2, 2012. Long Beach, CA. Photo: James Duncan Davidson
B/W Landscape
Made with Fullspectrum Camera and a so called pop filter red (Hoya), probably from the 70ies or 80ies. Although this filter is red, obviously, it's not an IR filter. I don't have any specs. Pop filters were used to colorise to one single color on color-film. Not used like colored filters for B/W. Interestingly, this one does not show a too strong IR ("wood") effect, and also the sky is not getting almost black, but gets a middle tone. Overall contrast is high, though, but still it does not produce that IR look, but rather something B/W film like. It was the first try with this filter, obviously another abuse, In need to check out this more. Seems to be a way to get a quite natural looking B/W, or almost B/W image. Few more to come, I struggle with the processing of those a bit. If anyone has specifications for pop filters or knows more ... please let me know!
Fullspectrum Pentax K-r with a Yellow-filter in front of Takumar-A 28/2.8 lens to achieve colors like Kodak Ektachrome.
aim of this work
This is a first approach how to increase details and sharpness of an image containing infrared and visible informations. Due to the focus shift of uncompensated lenses the sharpness is often reduced in these cases. I´ve duplicated the colored image and decomposed one of these into L, A and B channel afterwards. Then I applyed the edge detection filter on the L channel. Finally I composed a new image containing the original image and an added layer with the edge detected informations.
In cases of the traffic sign and railings there is an improvement in sharpness (maybe too sharp), but some structural informations within the crown get lost. Note: The image was not sharpen by any common algorithm like unsharp mask operation and so on.
If somebody has any kind of comment or suggestions for improvements, please let me know.
Pentax Infrared Tutorial [in german]
Barrel Cactus among Chaparral and Mesquite Bushes...
To the naked eye, All of these plants are actually Quite Green.
Looks a bit like a young Saguaro.. but we don't have those.
One major difference is Thorn Curling, and the Fruit and flowers are much smaller.
Chaparral, Mesquite, Yucca and other various Cacti, All look green right now, but photographing with a Full Spectrum Camera, They all reflect UV and IR a bit differently.