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05/14/2004 10:02:39 AM · #1
Hi everyone,
I have recently added to my equipment a set of Nikon filters: UV protection, circular polarizer and a F-DL filter. Besides the obvious need for UV protection (basically lens protection, do people really need color correction filters in digital photo? After all, at least in theory, every wanted color correction can be effectively achieved with post-processing. Or am I wrong? But, if that is the case, why doesn't photoshop come with some basic standard color correction filters, simulating regular filters for film cameras? Do you know any plugins that actually simulate the effect of standard filters?
Thank you.
05/14/2004 10:18:21 AM · #2
You CAN use color correction filters in your digi, but there's no need really... by setting your white balance correctly, you can correct color cast issues that pop up for flourescent vs. tungsten lighting, etc. and almost anything you can do with a filter can be done with photoshop. That being said, I do use my polarizer and my star filters on occassion. but stuff like soft-focus, diffusion, floursecent light filter, warming filter, cooling filter, you can do all that in photoshop. I've been playing with warming and cooling filters in photoshop lately, and it's much cooler than fumbling with the filter when you're trying to snap a pic :)
05/14/2004 10:30:55 AM · #3
You can't do a gradual neutral density filter in photoshop and still be legal for an open challenge. (can you?!)
05/14/2004 11:02:16 AM · #4
I use my polorizer and my stars as well. I tried my diffuser, but I don't really see the point. I always have my UV filter on my lens. I just leave it there really. I use my diopters a LOT, since I love macro photography, and those really help!

Color filters... not so much, you can use them in photoshop if applied to the entire image (I believe). Someone will want to check on that though.

Arie
05/14/2004 12:03:01 PM · #5
Originally posted by sailracer 98:

You can't do a gradual neutral density filter in photoshop and still be legal for an open challenge. (can you?!)


Correct sailracer, that would be illegal.
05/14/2004 12:05:15 PM · #6
It is my understanding that 'Basic Editing' excludes the use of post-processing filters other than noise reduction and gaussian blur.
05/14/2004 12:23:33 PM · #7
Originally posted by jxpfeer:

You CAN use color correction filters in your digi, but there's no need really... by setting your white balance correctly, you can correct color cast issues that pop up for flourescent vs. tungsten lighting, etc. and almost anything you can do with a filter can be done with photoshop. That being said, I do use my polarizer and my star filters on occassion. but stuff like soft-focus, diffusion, floursecent light filter, warming filter, cooling filter, you can do all that in photoshop. I've been playing with warming and cooling filters in photoshop lately, and it's much cooler than fumbling with the filter when you're trying to snap a pic :)


There's no need to do color correction with lens filters, typically, you should use the WB on the camera, or shoot RAW and change it later.

If you shoot much in mixed lighting (i.e, flash indoors where you drag the shutter to increase ambient illumination) You may find it useful to filter one of the light sources to balance the color so that you don't have the subject one color and the rest of the scene another. That situation is much trickier to fix later in PS. I usually stick a small piece of a color correcting gel over my flash to balance it with the room lighting. That's easier than running around trying to wrap all the room lights with gels.

For soft focus, I haven't found anything that gives a better SF effect than a wrinkled up piece of cellophane rubberbanded over the lens. The price is right too.

Message edited by author 2004-05-14 12:24:18.
05/14/2004 12:51:47 PM · #8
There are four kinds of filters I find useful: UV (not just to protect the lens - I've tested their effects by shooting an expanse of forests on a bright day, with and without one: the difference is distinguishable), a circular polarizer (to alter the appearance of reflective surfaces, to cut light, to render richer colours, to proliferate texture), ND and graduated ND filters (which i use mostly to darken bland skies) and, for b and w, yellow or red filters.

I feel, the use of these filters enable me to see (right then and there) how a picture is before I start tweaking it in an image editor. I have no use for special effects filters.
05/14/2004 01:08:56 PM · #9
When I was using my Powershot A40, I got the Cokin filter system so I could take advantage of polorizing filters. I also used the ND grad filters to let me cheat around the limits of a lower end camera.

With a dSLR, my goal is to produce images that do not need a serious amount of tweaking. To accomplish this, I will continue to use filters. I want the image in the camera to be as close to correct as possible. Right now I can't shoot RAW, so doing things correctly is critically important.

I'd suggest looking at Cokin filters. It's a cheaper system to start with and you can decide if you want to get more ambitious down the road.

There is a software package out there that will replicate filter effects. For the life of me I can't recall what it is.

Clara
05/14/2004 01:12:42 PM · #10
Originally posted by zeuszen:

for b and w, yellow or red filters.


You also have a 10D. I have been very interested in this, but haven't tried anything yet. I have a red filter for my 35mm camera since I used to shoot b/w a lot. However, since getting my 10D, there is no B/W except in post-processing, how does the red filter affect your work? Do you still use it? If so, when you upload the red image to your computer, what do you do in PS to make it perfect? I'd like help in this matter... :) Thanks
05/14/2004 01:18:51 PM · #11
Originally posted by blemt:

...I'd suggest looking at Cokin filters...


...with a caveat or two: they're expensive, when you consider the cheap plastic build of its system. Do not expect it to last or even work outdoors and as advertised - but where else would anyone use a graduated ND but outdoors?!

Also, mounting the system, changing and moving the edgeless filters to suit the shot is a pain, never mind the conditions.

Avoid any colour Cokin gaduated filters, unless of course your taste is the same as M. Cokin's. ;-)

Message edited by author 2004-05-14 13:21:55.
05/14/2004 01:58:44 PM · #12
Originally posted by zeuszen:


Also, mounting the system, changing and moving the edgeless filters to suit the shot is a pain, never mind the conditions.


It still beats changing screw-ons.
05/14/2004 02:06:10 PM · #13
In the new Photoshop CS there is a Photo filter menue in Adjustments for simulating different colored photo filters.

T
05/14/2004 02:13:27 PM · #14
Originally posted by mirdonamy:

Originally posted by zeuszen:

for b and w, yellow or red filters.


You also have a 10D. I have been very interested in this, but haven't tried anything yet. I have a red filter for my 35mm camera since I used to shoot b/w a lot. However, since getting my 10D, there is no B/W except in post-processing, how does the red filter affect your work? Do you still use it? If so, when you upload the red image to your computer, what do you do in PS to make it perfect?...


I'm still a few hairs removed from perfection. Arielle, but I'll try.. :-)

With the 10D, I have -what I consider - only temporary lenses, for which I have bought only UV filters.

Eventually though, for better lenses, I intend to get a few yellow, orange and red filters (emphasize cloudscapes, foliage, trees, grass etc. to the point of introducing a subtle surreality to b & w landscapes). I have little experience with these filters and digital cameras.

I imagine though that I'll do very little else that I don't do already when enhancing any photograph. Unlike IR filters, which require a different kind of treatment via prost-processing, these filters mainly effect exposure and contrast.

Message edited by author 2004-05-14 14:13:56.
05/14/2004 02:15:36 PM · #15
Originally posted by sailracer_98:

Originally posted by zeuszen:


Also, mounting the system, changing and moving the edgeless filters to suit the shot is a pain, never mind the conditions.


It still beats changing screw-ons.


It does. I still use 'em too, for lack of something better.
05/14/2004 02:19:54 PM · #16
I took a few photos with my red filters and they came out, well, sooooo red! I tried post processing them, but I could not get the photo to look like a nice b/w photo. It was just all wrong. I may try it again. If I perfect it, I'll let you know. Does anyone else have experience with red filters and non-b/w cameras (like the 10D)? I'd love to hear from you. Perhaps a tutorial???
05/14/2004 02:25:07 PM · #17
I tried an orange cokin filter and yes the result was very orange, and to be honest it compressed the tonal range of the final image whn I converted to monochrome in PS.

I don't bother even carrying it around now, just shoot in colour and post process in PS.
05/14/2004 02:25:13 PM · #18
It is my understanding that red, orange and yellow filters do not work with digital B&W photography because they aren't working on emulsions.
This was discussed in another thread sometime ago. I'll try to find it.

Originally posted by zeuszen:


Eventually though, for better lenses, I intend to get a few yellow, orange and red filters (emphasize cloudscapes, foliage, trees, grass etc. to the point of introducing a subtle surreality to b & w landscapes). I have little experience with these filters and digital cameras.

05/14/2004 02:37:48 PM · #19
Originally posted by Olyuzi:

It is my understanding that red, orange and yellow filters do not work with digital B&W photography because they aren't working on emulsions.
This was discussed in another thread sometime ago. I'll try to find it...


Well, I have, in fact, used red etc. filters with a digital camera, the F717, with good results. I did find though anything not taken on a bright day yielded unsatisfactory results.

However, I'm more curious than knowledgable myself.

Message edited by author 2004-05-14 16:03:18.
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