KC1 (Potassium T...KC1 (Potassium Chloride) Chemical Art Winston Ingram, [email protected], Tel:...
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T his experiment was conducted using only one slide. I prepared it by dusting the glass with a very fine coating of the chemical Potassium Chloride KC1. I wanted to see how many different photographs it would be possible to produce with just this white powder, to my surprise I found I could go on forever with variations. It was most fortunate I came across a gentleman on eBay who produces a series of Rheinberg Filters and after a few emails between us I found he was very co-operative in sending me a set to experiment with. I started by taking photos with normal polarising techniques. The original shots were all using my Leitz Ortholux 11 with the polarising filter giving full variations of cross polarisation. The set using the Rheinberg filters was with my Leica Stereo; this is not normal practice so I developed a technique where I placed the different filters just above the transmitted light source which on this instrument is an LED. I then added reflected light from a 60W pearl spot lamp, moving the filters back and forth and side to side gave me the artistic effects. These filters come in two main types although they were all round and made from plastic. The first type is a single colour centre with an outer rim of mixed colours. For example green centre with red yellow red yellow outer rim, and green centre with half red half yellow outer rim. The second type has graduated rims from the outer going to a centre colour. For example yellow blue and pink rims with a red centre, and red yellow and green rims with a blue centre. This type can produce a rainbow effect behind the subject with a single or even multi-colour effect. What was most surprising was the results were so similar to regular polarisation but with a subtle difference all of their own. The filters were all 35mm diameter and could have been used in a standard filter holder. I did not do this as I felt it wouldn’t give me such interesting artistic effects as moving them into different positions on the larger diameter light source of the stereo microscope. Included here are all the original shots together with the experimental Rheinberg filter photos for comparison; I hope you enjoy the results. Winston Ingram KC1 (Potassium Chloride) Chemical Art Winston Ingram, [email protected], Tel: 020 8459 2543
Transcript of KC1 (Potassium T...KC1 (Potassium Chloride) Chemical Art Winston Ingram, [email protected], Tel:...
T his experiment was conducted using only one
slide. I prepared it by dusting the glass with a
very fine coating of the chemical Potassium
Chloride KC1. I wanted to see how many
different photographs it would be possible to produce with
just this white powder, to my surprise I found I could go on
forever with variations.
It was most fortunate I came across a gentleman on eBay who produces
a series of Rheinberg Filters and after a few emails between us I found he
was very co-operative in sending me a set to experiment with. I started by
taking photos with normal polarising techniques.
The original shots were all using my Leitz Ortholux 11 with the polarising
filter giving full variations of cross polarisation. The set using the Rheinberg
filters was with my Leica Stereo; this is not normal practice so I developed
a technique where I placed the different filters just above the transmitted
light source which on this instrument is an LED. I then added reflected light
from a 60W pearl spot lamp, moving the filters back and forth and side to
side gave me the artistic effects.
These filters come in two main types although they were all round and
made from plastic. The first type is a single colour centre with an outer
rim of mixed colours. For example green centre with red yellow red
yellow outer rim, and green centre with half red half yellow outer rim. The
second type has graduated rims from the outer going to a centre colour.
For example yellow blue and pink rims with a red centre, and red yellow
and green rims with a blue centre. This type can produce a rainbow effect
behind the subject with a single or even multi-colour effect. What was most
surprising was the results were so similar to regular polarisation but with a
subtle difference all of their own.
The filters were all 35mm diameter and could have been used in a standard
filter holder. I did not do this as I felt it wouldn’t give me such interesting
artistic effects as moving them into different positions on the larger
diameter light source of the stereo microscope.
Included here are all the original shots together with the experimental
Rheinberg filter photos for comparison; I hope you enjoy the results.
Winston Ingram
KC1 (Potassium Chloride) Chemical Art
Winston Ingram, [email protected], Tel: 020 8459 2543
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