On Nov 18, 2010, at 11:16 AM, CheekyGeek wrote: > The only filters that I feel are necessary/useful in the digital world > are Neutral Density filters (for those times you want longer shutter > speeds at equiv. apertures or gradient NDs) and maybe polarizers.
In most cases, I'd agree with you. I was experimenting at the local dive bar/blues club last night, photographing a friend's gig. The red channel is two to three stops brighter than the blue and green channels. I was experimenting both with and without blue filters, and both with and without in camera white balance. With a blue filter on the camera, I was able to set the custom white balance, however without a blue filter, the ambient color balance was so far out of whack, that the camera would not set a custom color balance. I haven't had a chance to process the photos and see how the best of each set turns out. I suspect that for shooting color, then a filter could actually be useful for bringing radically out of color balance scenes back into balance, if you can handle the loss of light. However, in these situations, what any sane person would do is just convert to black and white in post. This is a situation where: 1) I REALLY wish the histogram could show raw data, rather than JPEG. 2) I wish that lightroom had an extra stop or two of adjustment on color balance. 3) It would be nice to be able to adjust the ISO of each color channel separately, so that color balance could be achieved and still expose to the right on all three channels. > Other than that, you can do the filter-thing for various B&W > enhancements with a post-processing product like Nik Software's Silver > Efex Pro. > > http://www.flickr.com/groups/silver_efex_pro/pool/ Yeah, for what Collin asked, just do it in software. All filters on your camera do is let you choose what information that you throw away before it even gets to the sensor. > > Darren Addy > Kearney, Nebraska > -- > Nothing is sure, except Death and Pentaxes. > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- Larry Colen [email protected] sent from i4est -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
