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View Full Version : CP-Filter "Emulation" in PSCS?


RinkRat
24th of June 2005 (Fri), 09:02
I'm wondering if I need to spend ~$100 on a filter, when I can just "Photo-Chop" it.

Do you have any actions, or ways to emulate a Circular Polarizer filter in PSCS?


Thanks.

blue_max
24th of June 2005 (Fri), 09:29
You need to spend the money - and this is the reason.

Imagine a leaf with a large amount of glare on it. That portion of it may be burnt out completely. A polariser will reduce that flare and allow the detail to show through. If the detail is not in the actual shot, the software can not bring it out, no matter how sophisticated. One can creatively add it back, but it's certainly not going to be a general photoshop filter.

A polariser is one of the few filters that can add something that can't be done any other way. It would serve you well to have one. Yes, I know, more expense!

Graham

Mernya
24th of June 2005 (Fri), 09:45
Cheap way out in a pinch, polarized sunglasses. I wear a set of Ray Bans, so if there is something like that, I can put the glasses in front. I know a filter is best though, but I am just getting into this and my S60 really isn't ideal for filters, even with the attachment (or so I heard)

RinkRat
24th of June 2005 (Fri), 09:53
You need to spend the money - and this is the reason.

Imagine a leaf with a large amount of glare on it. That portion of it may be burnt out completely. A polariser will reduce that flare and allow the detail to show through. If the detail is not in the actual shot, the software can not bring it out, no matter how sophisticated. One can creatively add it back, but it's certainly not going to be a general photoshop filter.

A polariser is one of the few filters that can add something that can't be done any other way. It would serve you well to have one. Yes, I know, more expense!

Graham

Thank you for the information. <*Changing my B&H shopping cart now*>

I'm going to also guess that it needs to be a "Multi-Coated" filter, as well?

If so, can you explain why?

Thanks again.

scottbergerphoto
24th of June 2005 (Fri), 10:07
Multicoating reduces stray light reflections degrading the image.

blue_max
24th of June 2005 (Fri), 11:10
Yep, Scott nailed it.

If highest quality is your aim (and it should be!), then a multi-resistant coating will be the best at suppressing stray light from entering the lens, and give you the best contrast and image quality.

Be warned, that will need to twist the filter and may not notice a great deal happening. The effect can be very subtle sometimes. In fact, you don't want it to be obvious as it looks false. Your angle to the sun has a very large bearing – working at 90degrees has the most effect.

You also lose a stop or two of light, so try and use a tripod or handheld in very good light.

Take the time to get used to it and don't expect to turn night into day.

Hope that has helped – go for the order!

Graham

RinkRat
24th of June 2005 (Fri), 11:52
Thank you Graham & Scott, you've made me $100 poorer. :(

... but also a bit more smarterer. :)

blue_max
24th of June 2005 (Fri), 11:58
So, you don't have any RayBans hey? :lol:

I suggest you order a pair of filters and tie them together – dead cool! :lol: :lol: :lol:

Graham