Does anyone know the difference between normal filters (UV, polariser etc.) and "digital" filters?
I was heading over to 7dayshop.com to get some for our shiny new Dimage7 and noticed that they sell both types. The only difference I can see is that ones with "digital" in the name are about three times the price!! Surely, a filter is a filter?
Originally posted by ganders: Does anyone know the difference between normal filters (UV, polariser etc.) and "digital" filters?
I was heading over to 7dayshop.com to get some for our shiny new Dimage7 and noticed that they sell both types. The only difference I can see is that ones with "digital" in the name are about three times the price!! Surely, a filter is a filter?
Mystified...
None of the filters i have bought are specified as 'digital' filters.. i didn't know there was a difference..
Originally posted by jmsetzler: Originally posted by ganders: [i]Does anyone know the difference between normal filters (UV, polariser etc.) and "digital" filters?
I was heading over to 7dayshop.com to get some for our shiny new Dimage7 and noticed that they sell both types. The only difference I can see is that ones with "digital" in the name are about three times the price!! Surely, a filter is a filter?
Mystified...
None of the filters i have bought are specified as 'digital' filters.. i didn't know there was a difference.. [/i]
There should be no difference. The filtering is taking place in front of the optics, and in front of a detector ( digital or film). Since in many cases the goal is to reproduce the output of film, you would like the filters to be the same. I would have guessed that the phrase "digital filter" would be software based. If there were a difference based on a detector response function, I would guess that Canon or Nikon would have made folks aware of it - and I don't believe they have.
the only thing that gets brought up is that many digital cameras use a contrast based through the lens focusing system, which can be disrupted by linear polarising filters.
So you might need a circlar polarising filter, depending on your camera.
Yeah, it's just an advertising gimmick...Digital filters vs. Traditional Filters .... As someone already pointed out Linear Polarizers can mess with the camera's AF system but that's about it.
