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For questions pertaining to photographic filters, which are usually glass or plastic accessories that are either screwed onto the lens or otherwise added in the optical path.

learn more… | top users | synonyms (1)

2
votes
1answer
160 views

Circular Polarization and Passive autofocus [duplicate]

Couple of weeks ago, I was assigned a homework in one of my Applied Physics master's course. My professor asked to explain why passive autofocus works only with circular polarizers. I am not a very ...
2
votes
2answers
6k views

What type of effects can I obtain with UV, FLD, CPL filters if any?

Can someone give me examples and show the difference. I obtained these from amazon. I have played with them for a little while and I am not impressed/bought yet. UV filter has no affect other than ...
2
votes
1answer
147 views

Are there issues with using Cokin/Lee style filter systems with compact cameras?

I'm interested in trying Cokin filters (or a similar system) on my Lumix LX-5. Has anyone had success with this, and are there pitfalls to be avoided such as vignetting on wide-angle shots? I've ...
3
votes
4answers
788 views

Where to buy cheap UV filters online?

I like to be extra careful with my lenses, in the hope that I can resell them for nearly what I pay. To this end, I use UV filters as an extra layer of protection(in addition to my paranoia :P ). ...
5
votes
1answer
129 views

Why would someone want a 58mm-58mm filter ring?

I don't even know what to call this thing. It's been sitting in a box of camera stuff for a while and I have forgotten where it came from.
2
votes
2answers
467 views

How to batch process dust and scratch removal in pictures with the use of filters?

I have a few hundred scanned slides that are about 30 yrs old and contain quiet a lot of dust/scratches. I'd like to use a filter to automate removal of most dust/scratches as I cannot realistically ...
1
vote
3answers
178 views

Neutral Density Filter for a 58mm filter diameter

I am planning to get a Neutral Density Filter for one of my lenses (58mm filter lens). But I am new to filters and clueless on the parameters to check for before I could select one. I recently ...
3
votes
1answer
257 views

What do the effects of different coloured lens filters have on B&W photos? [duplicate]

Assumptions: 35mm SLR, 50mm "standard" lens, Ilford FP4 or similar film, capturing daylight scenes with normal colours. What effects do colour filters have on film photos captured on black & ...
1
vote
6answers
750 views

What are the advantages of leaving an ND filter on a lens at all times?

I was chatting to a friend yesterday who had his Nikon D300 with a constant 2.8 aperture zoom lens (I can't remember the focal length, might have been around 17-55). The curious thing was that he had ...
4
votes
2answers
267 views

Blue / Green Water Filters and Shooting RAW While SCUBA Diving

I've recently gotten into SCUBA diving, and am curious about shooting with available light underwater. I've heard that when taking underwater photos with available light, an appropriate blue or green ...
19
votes
2answers
457 views

How do graduated ND filters actually work?

My question stems from the fact that the surface of the filter is completely out of focus. My understanding is that light from any one point of the subject hits the lens all over... some of it ...
0
votes
2answers
232 views

Which filter should I use on a bright day [duplicate]

What are filters for? If I want to use slow shutter speeds on a bright day, which filters are appropriate.
18
votes
6answers
1k views

ND Filter not Dense enough - How do I get long exposures in very bright situations, where my ND filter isn't enough?

What is the best way to achieve very long exposures in very bright, sunlit conditions? Right now, I have a Hoya ND-400 X filter (9 stops reduction), and even with my camera set to ISO 50, and F22, my ...
2
votes
2answers
469 views

Are neutral density filters or polarizers better for a desert environment? Or another filter?

Desert environment includes actual desert, some water (yes, I said that), some (dusty) city scenes, some POSSIBLY shiny buildings and pools of water. The research on this suggests that ND polarizers ...
2
votes
2answers
700 views

What is the basic gear for astrophotography?

I have a Canon 60D and would like to start doing some astrophotography and/or time-lapses of the Milky Way. I know I need to buy a special tripod, one with either ecuatorial mount or a computer ...
4
votes
2answers
246 views

What are the uses of Neutral Density (ND) filters?

Apart from silky water effects and pics of crowded places what are other uses of ND filters? Almost every blog I have read mentions only these two situations. What other uses are their for ND ...
1
vote
1answer
745 views

Where can I buy a filter for UV photography in Europe? (sub 400 nm)

Does anyone know where one can purchase filters for UV photography in Europe? These are the opposite of standard UV filters - these block visible light and only allow UV to pass through. All I could ...
1
vote
2answers
287 views

What photo editor for Mac offers image filters with live previews, HDR composition and photo stitching?

I am looking for a photo editor that offers to... ...choose filters by comparing live previews, not via contextual menus ...create panoramas by photo stitching ...create HDR images I would be nice ...
6
votes
4answers
2k views

How would one use filters with the “bulb”-like shape front element lenses?

I am toying with the idea of picking up either the Samyang/Rokinon 14mm f/2.8 IF ED UMC or the 8mm f/3.5 Aspherical Fisheye lens. These lenses have a built-in petal-shape hood and a "bulb-like" front ...
18
votes
2answers
3k views

How do I use Graduated Neutral Density filters?

I want to improve my photos of landscapes with high contrast (sunset/sunrise). What are good selections for GND filters and what are some techniques for using them correctly?
3
votes
4answers
3k views

Should I choose Hoya HD CP or Nikon CP II polarization filters?

I am looking for a polarization filter for a couple of my lenses. I have heard great things about Nikon CP filters and I am using Nikon NC filters myself on some of my most precious lenses. However, ...
11
votes
3answers
1k views

Is there any filter opposite to Polarizing filter, to emphasize reflections?

Polarizing filters are mainly used to reduce glare on water or similar surfaces. My question is, are there any filters that do the opposite job? ie that allow the camera to capture more glare or ...
3
votes
2answers
256 views

What visible-blocking filter to use for XSI IR conversion?

I have converted a XT at home with excellent results. I now wish to convert a XSi and I am having trouble locating a visibe blocking filter except for the Life Pixel filter. Their filter price is out ...
14
votes
6answers
3k views

Is a UV Filter required/recommended for lens protection?

Is it still required/highly recommended that I buy a UV or similar filter to 'protect' the front element of my lens? I ask because this advice has been around for 30 years and you would think that ...
56
votes
10answers
5k views

Are there any downsides to using a good-quality UV filter?

Are there any real downsides to using a UV filter? I know that a poor quality UV filter can effect image quality ... but, assuming I use a good quality UV filter, will that actually be an issue? Is ...
2
votes
2answers
872 views

How can I find out if the polarizer filter is linear or circular?

How can I find out if the polarizer is linear or circular? Is there anything else to know about it? All I know about a polarizer is that it's useful when taking pictures of water or windows.
1
vote
2answers
937 views

What is the use of these Hoya +1 and +2 filters?

I found some old filters (labeled +1, +2) which my dad used on his SLR back in the day. I'm not sure what they're good for or if they're useful on my DSLR. Can someone tell me more about them (i.e. ...
3
votes
2answers
349 views

How can I use 58mm filters with the Sony Nex-7?

I have 58mm filters, and I found out that the Sony filter size is 49mm. How can I use the larger filters with my Nex? Would I need a step up ring? Would it be better to buy 49mm filters instead? ...
41
votes
9answers
3k views

What is the best way to clean lenses and filters?

After removing dust with an air pomp and a brush, what are you using to remove stains from the lens and filters? So far I'm using the liquid from a Giotto's CL 1002 cleaning kit for the lens, but I'm ...
8
votes
3answers
774 views

Circular polarizer in underwater photography?

Today, I was watching a underwater video and suddenly asked myself if anyone has used a circular polarizer or polarizer in underwater shots or videos? I searched on the internet but nothing ...
3
votes
1answer
354 views

What is lens filter size of Kodak Z990?

I have a Kodak z990 Max digital camera and the filter size is not noted on the lens front and not mentioned in the documentation. I figure it is probably in the range of 50-52mm. Can you help? Kodak ...
22
votes
8answers
2k views

What ND filter would you recommend?

I'm thinking about getting an neutral density filter to shoot some silky waterfalls and smooths waves on the beach. What would you recommend in terms of: 1. Brand - quality, durability, price 2. ...
4
votes
3answers
1k views

Which filter do I need to perform NDVI measurements?

I have Nikon D70s DSLR camera and i would like to modify it for NDVI (Normalized Difference Vegetation Index) measurment. I am looking for the filter that can pass effectively RED and NIR band but ...
7
votes
3answers
939 views

How can I fix a sticky polarizing filter?

I took a gamble and bought a used B+W Circular Polarizer off eBay. The filter looks great but the adjusting ring is a little bit sticky. Is there some way to lubricate this?
5
votes
1answer
245 views
5
votes
3answers
3k views

Which filters could I use with Sigma 8-16mm f/4.5-5.6?

I am very keen on purchasing the Sigma 8-16mm f/4.5-5.6 DC HSM lens, but one of the draw backs of this lens is that I can't put normal / standard filters on it. Can anyone please advise if I could ...
18
votes
4answers
2k views

ND filter or exposure compensation?

I was at the camera shop a few weeks ago looking for a neutral density filter, so I could play around with long exposure shots without overexposing. The guy at the camera shop told me I didn't need a ...
15
votes
7answers
9k views

Is a UV filter better for lens protection than a protector filter?

I'm usually very good at getting water/finger marks on lens, so I must use something for protection. Is there any downside of using an UV filter instead of a protector filter? Example: Hoya HD ...
5
votes
2answers
537 views

How to make a landscape photo like Stanislav Perov?

I am a beginner in photography. Could some one explain how to make this photo? There are some things that I would like to know: what camera, lens(es) (eg shall I do it on crop camera, wide ...
4
votes
2answers
1k views

Infrared Photography - How to set White Balance?

When I started out photographing in infrared I wasn't setting a specific White Balance (I let the camera set on automatic). Then I started learning more about how people take infrared shots, and that ...
10
votes
4answers
914 views

What filter should I buy if I wanted to do 5 min shutter speed in daylight?

What type of filter would I need to create an image such as the following: http://500px.com/photo/10158205
4
votes
3answers
1k views

Where can I buy sets of Lee ND filters?

I am looking to buy some more Lee ND filters, particularly ND's, but also some Coral's for sunset shots. I'd like to buy whole sets if possible (they usually sell .3, .6, and .9 sets for ND and Coral ...
5
votes
1answer
96 views

Can I attach more filters to a full frame lens on a cropped body without vignetting than with a cropped lens?

It seems to me that because part of the image the lens is passing to the sensor gets cropped due to sensor size that it would take more vignetting to reach the cropped sensor. Is that right and how ...
5
votes
0answers
93 views

How to separate two stuck filters [duplicate]

Possible Duplicate: How do I get a stuck screw filter off of my lens? What are the best techniques for separating two filters that are stuck together (In my case a polarizer and a UV ...
21
votes
14answers
21k views

How do I get a stuck screw filter off of my lens?

There is a UV-filter screwed on my Canon 16-35mm. For some reason, I'm not able to get it off the lens. Does anyone has a simple but safe trick?
6
votes
1answer
275 views

Recommended filters for sunrise/ocean landscape shot

What filters I can use to shoot a ocean/sunrise landscape shot? I'll be shooting after dawn and I would like to make the water looks clear. Thanks
8
votes
2answers
372 views

Why do filters still use a screw mount?

The most fiddly items in my camera gear are the filters. Those are pretty much the only things I keep dropping while trying to screw then (except for my remote trigger falling once into a river, next ...
3
votes
1answer
571 views

How does the sensitivity of camera sensor behaves with the infrared filters?

I am puzzled about the behavior of camera sensor to the infrared spectrum. I have heard that the you must remove the internal infrared filter to capture infrared pictures. So, I removed it and used ...
4
votes
2answers
639 views

Why would my Hoya ND8 Pro 1 decrease the white balance dramatically?

I've just bought the Hoya ND8 Pro filter (+3 stops). After some tests, i've just notice that the results are very different from a single shot. After some tests, here is my conclusions : The ND ...
1
vote
2answers
249 views

some criteria when a filter looks good

I'm a developer who wants to figure out when a filter would look good applied to a given image. For example, I have sepia, solarisation and pencil filters. Okay, the perception will be very ...