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12/08/2004 06:18:57 PM · #1 |
Just curious, what's the difference between filters -- UV filter (obviously UV), ND filter (Neutral Density), CPL filter???
I searched the internet but basically just found them for sale everywhere -- just curious as to the differences, and if they make one for my camera...thanks.
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12/08/2004 06:28:08 PM · #2 |
Originally posted by deapee:
Just curious, what's the difference between filters -- UV filter (obviously UV), ND filter (Neutral Density), CPL filter???
I searched the internet but basically just found them for sale everywhere -- just curious as to the differences, and if they make one for my camera...thanks. |
UV filters are generally used as a means of protecting the glass on your lens. If the UV filter gets damaged, it is a lot less money to replace than an entire lens or to repair the glass on a lens.
A neutral density is a filter that allows less light than normal to enter the camera. They run from very light (as low as one stop) to four stops and more. These are popular when shooting streams as they allow for a longer shutter spead but they require the use of a tripod in most situations.
A circular polarizer is used to get rid of reflectins on non-metalic .surfaces. This is done by turning the filter. As you turn it in a circular motion, reflectoins will seem to disappear as it only lets in polarized light. Circular polarizers can also double as neutral density filters as they allow less light (no polarized light) than normal.
Lee
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12/08/2004 07:02:20 PM · #3 |
Originally posted by Tranquil:
A neutral density is a filter that allows less light than normal to enter the camera. They run from very light (as low as one stop) to four stops and more. These are popular when shooting streams as they allow for a longer shutter spead but they require the use of a tripod in most situations. |
I gotta get me one of those!
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12/08/2004 07:06:20 PM · #4 |
Originally posted by deapee:
Originally posted by Tranquil:
A neutral density is a filter that allows less light than normal to enter the camera. They run from very light (as low as one stop) to four stops and more. These are popular when shooting streams as they allow for a longer shutter spead but they require the use of a tripod in most situations. |
I gotta get me one of those! |
just be careful no to buy one of the REAL cheap ones, increased risk of flares. Opt for the better and more expensive multicoated (flare resistant) ones and from good makers like B+W. Still those guys are not that expensive, around 20 bucks for 58mm
I like the CPL even better esp for landscapes
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12/08/2004 07:24:34 PM · #5 |
Originally posted by Gauti:
just be careful no to buy one of the REAL cheap ones, increased risk of flares. Opt for the better and more expensive multicoated (flare resistant) ones and from good makers like B+W. Still those guys are not that expensive, around 20 bucks for 58mm
I like the CPL even better esp for landscapes |
The same goes for the CPLs also. The less expensive they are, usually the less properly they will work. You pretty much get what you pay for. Which is why at first it may be useful to invest in a CPL and double it as a ND filter. As for UV filters, pretty much you should go as cheap as possible as you may be replacing them every so often.
Would anyone find it useful if i were to write a filter tutorial?
Lee
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12/08/2004 07:30:48 PM · #6 |
Originally posted by Tranquil:
Originally posted by Gauti:
just be careful no to buy one of the REAL cheap ones, increased risk of flares. Opt for the better and more expensive multicoated (flare resistant) ones and from good makers like B+W. Still those guys are not that expensive, around 20 bucks for 58mm
I like the CPL even better esp for landscapes |
The same goes for the CPLs also. The less expensive they are, usually the less properly they will work. You pretty much get what you pay for. Which is why at first it may be useful to invest in a CPL and double it as a ND filter. As for UV filters, pretty much you should go as cheap as possible as you may be replacing them every so often.
Would anyone find it useful if i were to write a filter tutorial?
Lee |
Yes please do. That would be helpful.
Sups |
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12/08/2004 08:55:35 PM · #7 |
Originally posted by Tranquil:
Would anyone find it useful if i were to write a filter tutorial?
Lee |
Yes, please. do that.
there is, of course, a tutorial that deals with the non-camera use of filters, see Konadors How'd They Do That? :: Love
BTW, it would be good to have a section on filter care and storage.
Originally posted by Tranquil:
As for UV filters, pretty much you should go as cheap as possible as you may be replacing them every so often.
Lee |
Don't you have to think about flare as well with UV filters? i.e. have them coated so light does not reflect on the inside of them? The best advise I've heard on filters is: don't degrade your $$$ investment in DSLR and HQ lenses with a el cheapo filter which affects the quality of the picture. Is this sound advise or not?
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12/08/2004 09:04:13 PM · #8 |
Originally posted by Gauti:
Don't you have to think about flare as well with UV filters? i.e. have them coated so light does not reflect on the inside of them? The best advise I've heard on filters is: don't degrade your $$$ investment in DSLR and HQ lenses with a el cheapo filter which affects the quality of the picture. Is this sound advise or not? |
I agree to a certain degree --- if you can only afford to buy a $20 UV filter you probably wont have to worry about lens replacement/repair. I would not spend more than $65 or so on a UV filter though because then it is not worth the point of it in the first place, to be a cheaper alternative for lens protection. But i do understand and agree with what you are saying.
Lee |
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12/09/2004 09:20:20 AM · #9 |
Originally posted by Tranquil:
As for UV filters, pretty much you should go as cheap as possible as you may be replacing them every so often. |
Definitely bad advice.
See this thread.
I put a high-quality UV filter on all my L lenses as soon as they come out of the box. |
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12/09/2004 09:40:21 AM · #10 |
I haven't seen this in a polarizing filter, so do correct me if I'm wrong...you can get NDs that are only over half the glass which lets you reduce the incoming light for only part of the scene, useful for instance when taking landscapes where say the sky is really bright relative to the ground.
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