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bio website loopspace.mathforge.org
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visits member for 4 years, 3 months
seen Nov 29 at 8:01

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Mar
12
accepted What considerations are there when buying a polarising filter?
Mar
12
comment What considerations are there when buying a polarising filter?
@jrista: Your call. I got enough information, and a polariser, so I'm happy.
Sep
19
awarded  Yearling
Aug
31
awarded  Nice Answer
Aug
14
comment What considerations are there when buying a polarising filter?
@itai: My friendly neighbourhood physicist agrees with mattdm on this: the light is still polarised, but has components in all linear directions.
Aug
14
comment What considerations are there when buying a polarising filter?
@mattdm: Possibly: at the time of asking I wasn't sure if the camera had any bearing on the matter. Now that I know otherwise, then it is pretty much a duplicate. I leave it to your discretion as to whether to close it or not.
Aug
14
comment What considerations are there when buying a polarising filter?
@itai: thanks for the links, that's useful. (My "passing physics professor" had worked out what it must be in the meantime but nice to have it confirmed.)
Aug
13
comment What considerations are there when buying a polarising filter?
Thanks for the answer. One query on your first point: the Olympus isn't a DSLR and focusses by contrast. Is a circular polariser still going to work with that?
Aug
13
comment What considerations are there when buying a polarising filter?
PS: I'm confused as to what "circular" and "linear" mean when referring to polarising filters. Can anyone link to a good guide that explains it?
Aug
13
asked What considerations are there when buying a polarising filter?
Jun
20
comment Advice needed for purchasing a new camera or/and lens
@Anisha: I wouldn't go quite that far. There are certain brands that I feel have been in the game long enough that they know what the issues are, so I'll look carefully at what they produce. So my instinct would be to prefer an Olympus over a Sony, say. But I also know that my instinct isn't based on very much experience so I don't trust it all that much. It's all about gathering evidence until you have enough evidence to make a decision. Some factors count a lot, some factors don't. But very few factors don't count at all.
Jun
19
comment Advice needed for purchasing a new camera or/and lens
@Anisha: When I was thinking about getting a new camera, I wanted something with more control than my compact, but when I tried a friend's DSLR I was amazed at how big and heavy it was. Then I saw an advert for the Sony NEX5 and thought, "That's the sort of thing I need.". But then I compared the various available cameras on that dpreview site and the Olympus came out best for the things that I thought important. There are more of these cameras available now so it may not be the best anymore.