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491 comments found!
Thread: Infrared | Forum: Photography
Maybe this will help... Infrared is a portion of the invisible spectrum: the portion of the invisible electromagnetic spectrum consisting of radiation with wavelengths in the range 750 nm to 1 mm, between light and radio waves. It is the range between 750 and 900 nm that affest IR film. It's primary purpose was to help distiguish between collors that were really close in scientific work... Like the variations of green in a leaf. However once people like you and I stared palying with it, it bacame very popular as an artistic tool :)
Thread: Infrared | Forum: Photography
Infra Red Film comes in two varieties that I am familiar with. A Black & White Negative film (Kodak HIS) and Color Reversal film (Kodak Ektachrome EIR). I have also used a B&W infra red film from Ilford, but I am not sure if they manufacture this any more. With B&W film and a dark red filter, Green foliage is rendered in light grays and white while blue skies are rendered almost black. With Color Reversal (Slide Film) the results vary widely depending on the exposure, development process, degree of push processing, the amount of infra red reflectance present at the time of exposure and the lens filter used. There is no ISO speed rating on this film as light meters do not measure infra red. Kodak recommends a base setting of 200 and bracketing your exposures two full f-stops in both directions. My experience is that the bracketing is best done in 1/3 stop increments if your camera allows. So how does this relate to exposures being made on CCDs with digital cameras? At the moment, I am not sure I am going to investigate this and will let you know after I have researched it and done some exposure tests. Meanwhile I think the following excerpt from a Kodak publication on IR film is worth noting. A great deal of confusion exists concerning infrared photography and the measurement of infrared energy (heat waves). This confusion often leads to futile attempts to detect thermal patterns through the use of infrared photography. Contrary to what many people believe, the infrared record in a photograph is not a measure of ambient temperature variation. Thermal photography cannot be done with infrared-sensitive film because it is not a thermal or heat detector, being only sensitive to the near-infrared spectral region. (Infrared Film is sensitive to approximately 900 nm) BTW IR film is not cheap. Current prices range from $15.00 to $20.00 US currency.
Thread: Infrared | Forum: Photography
This is very close to the way color IR film looks when shot and processed according to directions. Black & White IR looks totaly different. The #7 image was defenitely the best. some of the others especially #4 har a lot of noise. Perticularly in the red channel. This can be corrected in photoshop using the channel mixer (Not sure about PSP as I haven't used it). All in all this is way cool stuff... at least IMO :)
Thread: playing in the garden | Forum: Photography
Thread: Available Light Winners Announced! | Forum: Photography
IMHO... I think everyone who participates wins. After all everyone who took the challenge and shot something for this pushed their limits and learned something new.
Thread: Infrared | Forum: Photography
I have done IR in Black & White before and just orderd some new film.... I have not tried recreating the effect digitally yet. How about some details Diane :)
Thread: Curiosity question for everyone, work+play=?music? | Forum: Photography
Hendrix Pink Floyd Spirit Radio Head Rickie Lee Jones Harry Nilson For the last week or so also...
Thread: Post of the week, Winter wonderland. | Forum: Photography
Thread: Embryonic Fusion... Part Five of Parallel Divergence | Forum: Photography
What we capture, either as pixels or silver halide, is only one part of the process. (This one was shot digitally) The process and the emotion are the art.
Thread: Rust, decay, degradation- | Forum: Photography
Thread: Strange day shoot | Forum: Photography
These are both nice Diane... However I do like the first post better. Marsh if your negatives are fading, it is because the they fixer used was exhausted. I would complain. They cannot replace the shots, but most places will give you new film when the screw up. BTW... I would not take film back to them.
Thread: Post of the week, Winter wonderland. | Forum: Photography
Now if you could control that, you would have another useful tool at your disposal :) Where was this?
Thread: Dock, b&w | Forum: Photography
Very nice detail Niko... It is so hard to get good seperation on a flat sky, but you succeeded.
Thread: Panorama, a dock. | Forum: Photography
This is great Niko... I have not even had a chance to think about using the stitching program I downloaded yet as I have been very busy too.... Did you use a special program or just do this in Photoshop?
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Thread: ...fooled around. | Forum: Photography