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A raíz del post que han publicado en Xatakafoto
www.xatakafoto.com/trucos-y-consejos/menos-ruido-en-camar...
acerca de la recomendación de usar ISO160 y múltiplos para el video en las cámaras Canon, ya que por lo visto el ruido es menor, he querido comprobar cómo de cierto sería esto para fotos en la 50D. He hecho unas cuantas fotos a distintos ISO con la reducción de ruido desactivada en cámara y en Canon DPP (software que he usado para procesar los RAW). Están hechas en modo Av, f/4, medición evaluativa, sin compensación de exposición y en trípode. Entre una y otra lo único que ha variado ha sido el tiempo de exposición para ser equivalentes entre sí en exposición (1/10, 1/13, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60, 1/80, 1/100, 1/125, 1/160, 1/200, 1/250, 1/400, 1/800, 1/2500). Luego he sobre-expuesto dos pasos en DPP para exagerar el ruido y hacerlo más visible. Finalmente he recortado la misma area en todas para poder comparar. Son un recorte al 100%
He visto que es un tema tratado por Guillermo Lujik en el tema www.canonistas.com/foros/5d/337757-mejor-ruido-160-iso-qu... , pero con pruebas con la 5D.
Approaching the Milehouse depot, 160 has got caught up in the queue for the traffic lights behind me. Many of the cars are now as desirable as the bus, such as the Vauxhall Ventora to the left.
Dashboard of a Studebaker Lark VIII (right-hand drive) at the Australia Day vintage car rally, Government House/Kings Domain gardens, St Kilda Rd, Melbourne.
Not sure ofthe exact year of make, but it would be late 1950's/early '60s. The exterior was lemon yellow with lots of shiny chrome.
My twist on the Project 365, this time tracking down the actual numbers to mark the days.
What’s allowed: numbers depicted by figures, ordinals (first, second, 13th etc), roman numerals, words. Photos can be taken at any time, but must have been taken especially for this project.
Restrictions: numbers must be “found” or “natural”, so writing a missing number on a piece of paper and photographing it is not allowed. Times on digital clocks etc may be included, but must have been taken at the actual time (so no setting the time forward or back for convenience).
Added restrictions: pictures must be taken with a 50mm lens, plus use of an extension tube for macro shots. Minimal cropping/enhancement.
160 - 9/6/13
Out today meeting up with old friends, really had a great time. Took this on my way home. Just thought it was interesting, especially after some tilt-shift effect. More tomorrow.
There are 320 possible rays on which the prime numbers can lie.
[UPDATE] No, it is even more beautiful: there are only 160 possible angles since as I just found out all the rays go right through the center and continue on the other side!
steps to the top. Sooner rather than later the muscles begin to burn, I know from personal experience on these steps. Thanks Danny for taking the challenge!!
Strobist info: Nikon D3x (rented), 50mm, ISO400, F/4.0, 1/250, SB-900 in Lastolite softbox on Camera right and SB-900 on clamp directly behind Danny on camera left in the bush, Manual mode triggered with PWII.
TUSSAM - Transportes Urbanos de Sevilla, Sociedad Anónima Municipal
Trajecto: Fuera de Servicio
Sevilla - Calle Dr. Ordóñez de la Barrera (San Bernardo) Metro
160.365 - June 21, 2013 - Here's one more from Fridays photo shoot. Once again I didn't have much time to take a picture today.
117 image Brenizer taken at 200mm, f2.8.
160/365 I am trying really hard to get into this book. It came highly recommended by several people. It's gonna get better, right?
Triebwagen 160 - ein unverkennbar ex Erfurter Wagen - auf der Fahrt in Richtung Innenstadt von Tallinn. Die Schatten werden länger – der Herbst kündigt sich in großen Schritten an.