If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Newbie question on digital filters
Being a recent convert from 35mm film (2xCanon A1) to digital. On my
film cameras I keep Skylight 1B filters on all the time. I've noticed thay filter manufacturers offer 'digital' filters i.e. looking at the Hoya Pro 1D range for my new K10D. MY question is - am I better with the filters specifically for digital lenses/cameras, or can I use Skylight 1B filters (mainly to protect my lenses) - I will be buying new lenses for my K10D. Thanks Clive |
#2
|
|||
|
|||
Newbie question on digital filters
am I better with the filters specifically for digital
Clive, you can keep your 1-B filters. I happen to use UV haze filters on my lenses, but it's also only to protect the lens. Any color differences you might see (or might not see!) are easily corrected in white balance. |
#3
|
|||
|
|||
Newbie question on digital filters
"Clive" wrote in message . .. Being a recent convert from 35mm film (2xCanon A1) to digital. On my film cameras I keep Skylight 1B filters on all the time. I've noticed thay filter manufacturers offer 'digital' filters i.e. looking at the Hoya Pro 1D range for my new K10D. MY question is - am I better with the filters specifically for digital lenses/cameras, or can I use Skylight 1B filters (mainly to protect my lenses) - I will be buying new lenses for my K10D. Thanks Clive A skylight filter is slightly pinkish to filter out the bluish tinted light found in shady outdoor areas. Digital filters (for protection purposes) are optically neutral, i.e., clear, flat glass. Digital cameras allow for "white balance" within the camera and so does image processing software like PhotoShop. By adding one more (unnecessary) variable (what the filter is doing to the light), you are just making things a little more difficult. Yes, you CAN do what you suggest...but you probably don't want to. George |
#4
|
|||
|
|||
Newbie question on digital filters
george wrote:
"Clive" wrote in message . .. Being a recent convert from 35mm film (2xCanon A1) to digital. On my film cameras I keep Skylight 1B filters on all the time. I've noticed thay filter manufacturers offer 'digital' filters i.e. looking at the Hoya Pro 1D range for my new K10D. MY question is - am I better with the filters specifically for digital lenses/cameras, or can I use Skylight 1B filters (mainly to protect my lenses) - I will be buying new lenses for my K10D. Thanks Clive A skylight filter is slightly pinkish to filter out the bluish tinted light found in shady outdoor areas. Digital filters (for protection purposes) are optically neutral, i.e., clear, flat glass. Digital cameras allow for "white balance" within the camera and so does image processing software like PhotoShop. By adding one more (unnecessary) variable (what the filter is doing to the light), you are just making things a little more difficult. Yes, you CAN do what you suggest...but you probably don't want to. George I disagree (mildly). It is better to color correct with filters than it is later digitally because by color balancing the light using a filter, you maximize signal-to-noise ratios. If you digitally post process and the resulting color balance requires a large boost in one channel, you also boost noise. Having said that, if you are using a high signal-to-noise ratio DSLR, you can get away with a fair amount of color balance, especially at low ISO. If you are using a small pixel size camera or high ISO then post processing color balance will be less forgiving. For the OP, more important than digital or traditional 1B filter is to get supercoated filters to reduce reflections from the filter to the front lens element. Many modern lens designs have an almost flat fron element, making reflections more of a problem than with older lenses. Many Canon EOS lenses have this issue. Roger |
#5
|
|||
|
|||
Newbie question on digital filters
Roger N. Clark (change username to rnclark) wrote:
george wrote: "Clive" wrote in message . .. Being a recent convert from 35mm film (2xCanon A1) to digital. On my film cameras I keep Skylight 1B filters on all the time. I've noticed thay filter manufacturers offer 'digital' filters i.e. looking at the Hoya Pro 1D range for my new K10D. MY question is - am I better with the filters specifically for digital lenses/cameras, or can I use Skylight 1B filters (mainly to protect my lenses) - I will be buying new lenses for my K10D. Thanks Clive A skylight filter is slightly pinkish to filter out the bluish tinted light found in shady outdoor areas. Digital filters (for protection purposes) are optically neutral, i.e., clear, flat glass. Digital cameras allow for "white balance" within the camera and so does image processing software like PhotoShop. By adding one more (unnecessary) variable (what the filter is doing to the light), you are just making things a little more difficult. Yes, you CAN do what you suggest...but you probably don't want to. George I disagree (mildly). It is better to color correct with filters than it is later digitally because by color balancing the light using a filter, you maximize signal-to-noise ratios. If you digitally post process and the resulting color balance requires a large boost in one channel, you also boost noise. I'll disagree (mildly) with that, and toss in an "it depends". Your reason is sound, when circumstances and desired results call for it, but the conclusion that it's ALWAYS better to color-correct with filters is flawed... simply because, if your filter work turns out "wrong", it's a lot harder to "undo". Example: you put a red filter on to darken the sky and foliage... then discover later that it's too dark, that you want more green in the picture. Lot harder to do that since you've effectively removed most of the green before the shot was even taken. If the only way to control the exposure of the sky to avoid over-exposing it or under-exposing the surroundings is with a filter, that's a circumstance where your reasoning does apply. But really, that's an exception, rather than the rule. |
#6
|
|||
|
|||
Newbie question on digital filters
Matt Ion wrote:
Roger N. Clark (change username to rnclark) wrote: george wrote: I disagree (mildly). It is better to color correct with filters than it is later digitally because by color balancing the light using a filter, you maximize signal-to-noise ratios. If you digitally post process and the resulting color balance requires a large boost in one channel, you also boost noise. I'll disagree (mildly) with that, and toss in an "it depends". Your reason is sound, when circumstances and desired results call for it, but the conclusion that it's ALWAYS better to color-correct with filters is flawed... simply because, if your filter work turns out "wrong", it's a lot harder to "undo". Well, there certainly is no substitute for stupidity. ;-) The OP came from film world where you had to choose the right color correction filters, or you basically lost the shot, especially with slide film. It's no worse with digital. Roger Example: you put a red filter on to darken the sky and foliage... then discover later that it's too dark, that you want more green in the picture. Lot harder to do that since you've effectively removed most of the green before the shot was even taken. If the only way to control the exposure of the sky to avoid over-exposing it or under-exposing the surroundings is with a filter, that's a circumstance where your reasoning does apply. But really, that's an exception, rather than the rule. |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
newbie RAW question for XP or FC1 | [email protected] | Digital Photography | 1 | April 24th 06 07:26 PM |
newbie question | [email protected] | Digital SLR Cameras | 28 | April 24th 06 04:47 AM |
Newbie question | Matthew Spivey | In The Darkroom | 7 | March 7th 05 12:01 PM |
Newbie: Use of Contrast Filters and Exposure Time | KS | In The Darkroom | 12 | August 25th 04 02:44 PM |
Newbie question | General Martok | Digital Photography | 7 | July 24th 04 10:39 PM |