If I can tag on to Chuck here.
Some people dramatically talk about preferring a broken filter to a
broken front element, but broken shards of a filter could do major
lens damage. Like Walt I have used a camera most of my life and never
damaged a lens. I do use lens caps and hoods though which offer much
more protection to a lens. And the Leica that scraped between a
terrified me on the ledge and the rock face fortunately had an ever
ready case.
Another argument against deep color glass filters is simply digital
noise due to the low level of light meeting the sensor. If you have a
single camera histogram which is luminance based(green channel)
judging exposure could also be dicey. Much easier and better to do
this afterward in software.
Winsor
Long Beach, California, USA
On Sep 1, 2006, at 9:41 AM, Chuck Norcutt wrote:
> Hah! Another participant in the UV/skylight religous wars.
>
> The reason no filters are attached to the lens is that no physical
> filters are required if you're talking color filters. As we just
> discussed the only physical filters required for digital are
> polarizers
> and UV. But I'm not talking the weak UV people normally attach
> (unnecessarily in my opinion) fulltime to protect (ha, ha) their
> lenses.
> For serious blue removal (warming) you need the 81 series of filters.
>
> When it comes to color filters you have all the color info
> available to
> you for post procesing the image many different ways to your heart's
> content... unless of course you shot JPEG with a camera supplied
> filter
> algorithm. Then the full color information is lost and you take
> whatever the camera decided to give you.
>
> Chuck Norcutt
>
> Ali Shah wrote:
>
>> Interesting that you mention filters. I have been
>> wondering and havent had time to test. The E-500 has
>> built-in filters but wouldnt it be better to
>> physically attach a filter to the lens? Will the
>> physical filter produce a better photo vs. built-in
>> filters? I use a UV filter at all times but I am
>> talking about Yellow, Orange, Red, etc filters.
>>
>> I took a couple of photo workshops through the local
>> university and the guy who teaches the classes does
>> not believe in filters. Particularly not UV/Skylight
>> filters! However, I believe protecting the glass on
>> the lens is far more important.
>
>
>
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