oozhan
Damla - Drop forming (EXPLORE'd)
VIEWING THE LARGE SIZE RECOMMENDED (Zoom in to the notes)
I said in my previous water drop photo that you could view it from several angles: as a photographer, as a physicist etc. Let's view this photo from a physicist point of view and carry over the knowledge to photography.
A rainbow is formed by raindrops refracting different colors of sun light at different angles on the front surface, reflecting them from the rear surface back to the front surface, then refracting them again on the front surface, violet being bent more than red and thus sending us the rainbow colors at different angles. And we see the rainbow.
In this photo I used the flash of my NIKON D60. Indirect flash light from surroundings entered the left side of the drop and emerged on the right, causing the micro rainbow. If you look at my rainbow you will see the red and blue. The others are not visible. On the other hand direct flash light impinged the drop in the middle, causing the red and blue to reach the camera sensor at the same angle. Therefore the mid axis of the drop reveals magenta, which is nothing but a combination of red and blue.
This drop shows that our camera flashes have a spectrum rich in red and blue and different from that of the sun's. There arises the need that all photographers are aware of: the need to adjust the white balance. When you select FLASH setting for WB then the camera electronics tries to compensate for the colors that are weak or missing (in my case green is attenuated a lot.)
Ref: [web.physik.rwth-aachen.de/~harm/aixphysik/atom/discharge/...]
BUYUK BOYDA IZLEMENIZ VE NOTLARIN BULUNDUGU BOLGEYE BAKMANIZ TAVSIYE EDILIR
Daha onceki damla fotografinda, resme bir fotografci, muhendis fizikci, bir mistik vb nokta-i nazarindan bakilabilecegini yazmistim. Bu fotografa fizik acisindan bakalim ve onun fotograf sanati ile ilgisini arastiralim.
Gokkusagi, gunes isiginin yagmur tanelerinin on yuzunden girip, cesitli renklerde farki acilarla kirilip arka yuzeye carpmasi oradan yansiyip on yuzeyden yine kirilarak farkli acilarda bize ulasmasi sonucu olusur - mavi, kirmizidan daha buyuk bir aci ile kirilir.
Buradaki fotografta NIKON D60 flasini kullandim. Damlaya indirekt yollarla sol taraftan giren flas isigi, damlanin sag tarafindaki (tayfi) mikro gokkusagini olusturmus. Burada kirmizi ve mavi acikca gorulmekte, yesil ve diger renkler gorulmemektedir. Bu durum butun fotograf meraklilarinin da bildigi gibi flas kullanildiginda renklerin normal gorunumunden farkli olmasini dougurur. Bu durumu duzeltmek icin WB (White Balance) ayarinda FLASH secilerek giderilir. Kamera elektronigi kirmizi ve mavi disindaki renkleri telafi etmeye calisir.
First post to Flickr: 04/05/2009
Damla - Drop forming (EXPLORE'd)
VIEWING THE LARGE SIZE RECOMMENDED (Zoom in to the notes)
I said in my previous water drop photo that you could view it from several angles: as a photographer, as a physicist etc. Let's view this photo from a physicist point of view and carry over the knowledge to photography.
A rainbow is formed by raindrops refracting different colors of sun light at different angles on the front surface, reflecting them from the rear surface back to the front surface, then refracting them again on the front surface, violet being bent more than red and thus sending us the rainbow colors at different angles. And we see the rainbow.
In this photo I used the flash of my NIKON D60. Indirect flash light from surroundings entered the left side of the drop and emerged on the right, causing the micro rainbow. If you look at my rainbow you will see the red and blue. The others are not visible. On the other hand direct flash light impinged the drop in the middle, causing the red and blue to reach the camera sensor at the same angle. Therefore the mid axis of the drop reveals magenta, which is nothing but a combination of red and blue.
This drop shows that our camera flashes have a spectrum rich in red and blue and different from that of the sun's. There arises the need that all photographers are aware of: the need to adjust the white balance. When you select FLASH setting for WB then the camera electronics tries to compensate for the colors that are weak or missing (in my case green is attenuated a lot.)
Ref: [web.physik.rwth-aachen.de/~harm/aixphysik/atom/discharge/...]
BUYUK BOYDA IZLEMENIZ VE NOTLARIN BULUNDUGU BOLGEYE BAKMANIZ TAVSIYE EDILIR
Daha onceki damla fotografinda, resme bir fotografci, muhendis fizikci, bir mistik vb nokta-i nazarindan bakilabilecegini yazmistim. Bu fotografa fizik acisindan bakalim ve onun fotograf sanati ile ilgisini arastiralim.
Gokkusagi, gunes isiginin yagmur tanelerinin on yuzunden girip, cesitli renklerde farki acilarla kirilip arka yuzeye carpmasi oradan yansiyip on yuzeyden yine kirilarak farkli acilarda bize ulasmasi sonucu olusur - mavi, kirmizidan daha buyuk bir aci ile kirilir.
Buradaki fotografta NIKON D60 flasini kullandim. Damlaya indirekt yollarla sol taraftan giren flas isigi, damlanin sag tarafindaki (tayfi) mikro gokkusagini olusturmus. Burada kirmizi ve mavi acikca gorulmekte, yesil ve diger renkler gorulmemektedir. Bu durum butun fotograf meraklilarinin da bildigi gibi flas kullanildiginda renklerin normal gorunumunden farkli olmasini dougurur. Bu durumu duzeltmek icin WB (White Balance) ayarinda FLASH secilerek giderilir. Kamera elektronigi kirmizi ve mavi disindaki renkleri telafi etmeye calisir.
First post to Flickr: 04/05/2009