Discussion
davidn said:
On advice from you guys bought an E10, great bit of kit. Question, can a red filter be used as in B&W film to accentuate the sky when shooting digital colour and then convert to greyscale in photoshop & get similar results? or is a polariser the way to go?
Any ideas, thanks
David
A polariser would be better. There are photoshop filters which can simulate the effect of coloured BW filters too.
The red and the polariser filters work in different ways when used with film and I assume the same is true when attached to a digital camera.
The effect of the polariser will depend on the angle of view relative to the sun whereas the red filter does not. If you want an extreme effect you can use both though you may get (1) vignetting if taking with a wide angle lens, and (2) fall off of picture quality from adding more glass in front of your lens though this is usually unnoticeable if the filters are clean and of good quality.
The effect of the polariser will depend on the angle of view relative to the sun whereas the red filter does not. If you want an extreme effect you can use both though you may get (1) vignetting if taking with a wide angle lens, and (2) fall off of picture quality from adding more glass in front of your lens though this is usually unnoticeable if the filters are clean and of good quality.
beano500 said:
Ah - similar question came up recently.
Yep, though IR is rather different animal to simply a red filter, which in traditional B/W photography is used to enhance clouds. Not sure whether it works by blocking blue light, or by compensating for some deficiency in the film's spectrum though (early film was very insensitve to blue light, which is why photos from the period have plain skies)
Similar, but different......
Here's one I'm proud to say I created earlier
www.ephotozine.com/techniques/viewtechnique.cfm?recid=199
Here's one I'm proud to say I created earlier

www.ephotozine.com/techniques/viewtechnique.cfm?recid=199
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