esophoria Posted June 22, 2015 Share #1 Posted June 22, 2015 Advertisement (gone after registration) I'm considering purchasing a 49mm circular polarizing filter. Lot's of brands from inexpensive to very expensive-- any recommendatons? Link to post Share on other sites More sharing options...
Advertisement Posted June 22, 2015 Posted June 22, 2015 Hi esophoria, Take a look here 49mm Circular Polarizer. I'm sure you'll find what you were looking for!
jaapv Posted June 22, 2015 Share #2 Posted June 22, 2015 The usual, B+W, Heliopan, Hoya is decent. Personally I would opt for the Kaesemann filter by B+W. 2 Link to post Share on other sites More sharing options...
mjh Posted June 22, 2015 Share #3 Posted June 22, 2015 It doesn’t need to be circular, btw. 1 1 Link to post Share on other sites More sharing options...
esophoria Posted June 22, 2015 Author Share #4 Posted June 22, 2015 Not sure I understand why it needn't be circular-rotating the filter increases/decreases the polarizing properties.... Link to post Share on other sites More sharing options...
jaapv Posted June 22, 2015 Share #5 Posted June 22, 2015 Link to post Share on other sites More sharing options...
mjh Posted June 23, 2015 Share #6 Posted June 23, 2015 Not sure I understand why it needn't be circular-rotating the filter increases/decreases the polarizing properties.... Not sure whether that’s meant to be a joke … Link to post Share on other sites More sharing options...
bobaronoff Posted June 26, 2015 Share #7 Posted June 26, 2015 Advertisement (gone after registration) I am NOT an expert, I only know what I read and not everything written is correct. That said.... 1) Some polarizing filters do rotate to allow adjustments for differing angles between direction of sun and direction of composition. 2) Circular is said to be required for auto focus and auto metering systems to work properly. 3) In addition to the glass properties, when selecting a filter one needs to consider if it will affect attachment of the lens hood. 4) Effects across the image can be uneven when using wide angle lens i.e. 28mm Again, I am not knowledgeable enough to know whether what is written is hype or not but these points seem consistently made. If OP decides to take the 'plunge', please let us know what you learn. I suspect others will be interested. Link to post Share on other sites More sharing options...
bernie.lcf Posted June 26, 2015 Share #8 Posted June 26, 2015 This is useful: http://photo.stackexchange.com/questions/9488/why-does-a-linear-polarizer-work-as-well-as-a-circular-one-on-a-ps-camera Basically, circular polarizer are recommended for SLR cameras because of the mirror that might interfere with the light of linear polarizers thereby causing problems in autofocus and metering. Circular vs linear has nothing to do with the user turning the filter, but how the polarized light is transfered to the lens. 2 Link to post Share on other sites More sharing options...
jsjxyz Posted June 26, 2015 Share #9 Posted June 26, 2015 I am using Lee Filter seven5 deluxe kit which include circular polarizer, ND, and graduated filter. Just buy the 49mm adapter. Link to post Share on other sites More sharing options...
mjh Posted June 26, 2015 Share #10 Posted June 26, 2015 (edited) 1) Some polarizing filters do rotate to allow adjustments for differing angles between direction of sun and direction of composition. Not just some, all polarising filters do rotate. As their effect crucially depends on their orientation they wouldn’t be much use otherwise. 2) Circular is said to be required for auto focus and auto metering systems to work properly. Circular polarising filter are required for SLRs with AF. Other cameras can use linear filters. SLRs with AF have a half-transparent mirror splitting light between the AF sensor on the one hand and the AE meter (and viewfinder) on the other. This half-transparent mirror is polarising light and combined with the filter on the lens it would act like a variable ND filter. The Q – not being an SLR – doesn’t need a circular polarising filter. By the way, a circular filter is just a linear filter with an added layer turning the linear into a circular polarisation. Edited June 26, 2015 by mjh 2 Link to post Share on other sites More sharing options...
fastcar888 Posted February 25, 2016 Share #11 Posted February 25, 2016 Do you use a polarizer with the Q, or not? I am considering a B & W multi-coated resistant polarizer, even though I can do post processing. Opinions appreciated. Thanks. 1 Link to post Share on other sites More sharing options...
Herve5 Posted February 25, 2016 Share #12 Posted February 25, 2016 I don't but am a recent user. What worries me is, a standard polarizer would either prevent using the hood, or stay there forever... I'd love to find a way to adapt one onto the hood... 1 Link to post Share on other sites More sharing options...
KLManhattan Posted February 25, 2016 Share #13 Posted February 25, 2016 I use a polarizing filter and take the lens hood off while using it. I have had to take the hood off on most lenses when using either a polarizing filter or a rotating graduated ND filter. I do not consider this a problem. 1 Link to post Share on other sites More sharing options...
Leica Guy Posted February 25, 2016 Share #14 Posted February 25, 2016 I use a polarizer and at times a 6-stop ND filter. I have to remove the hood to install or remove one. Then I put the hood back on. With a little dexterity I can rotate the polarizer with the hood still in place. Not a big deal. Mine are Zeiss and B&W. Very happy to have and use both. 2 Link to post Share on other sites More sharing options...
Herve5 Posted February 26, 2016 Share #15 Posted February 26, 2016 (edited) Ah. I bought the Q in order to neverrr unscrew things anymore before taking a pict :-) But... see where you brought me : I had an old, dirty pair of polarizing eyeglasses, the cheapest sort (which glasses you can just pull out of the frame with the thumb); I catched one glass this way, tried it on the Q with hood: guess what, it fits almost exactly! So, not sure I'll do this, but if I find a reasonable way of gripping it there, I may well end with the cheapest of polar filters onto the costliest camera in my whole life :-D BTW, indeed I think someone could start a 'goodies' commerce with easy-to-add little features like that -"wanna filter? get this part and just plug it onto your hood, designed for Q"... Edited February 26, 2016 by Herve5 2 Link to post Share on other sites More sharing options...
pico Posted February 26, 2016 Share #16 Posted February 26, 2016 Do you use a polarizer with the Q, or not? I am considering a B & W multi-coated resistant polarizer, even though I can do post processing. Opinions appreciated. Thanks. Unfortunately, post processing cannot do what on-lens polarization does. 2 Link to post Share on other sites More sharing options...
Pete McGill Posted February 26, 2016 Share #17 Posted February 26, 2016 Polarizers with 28mm lens can sometimes produce uneven effects on an image if there is a lot of sky in it. It all depends on the angle of the sun and the filter of course. Still a good idea to have one though. I use it occasionally when the above effect isn't an issue. I have a Hoya and it seems pretty high quality. 1 Link to post Share on other sites More sharing options...
Thisisasticup Posted March 7, 2016 Share #18 Posted March 7, 2016 I use the B+W one and the lens hood can be used with it, the only time you need to unscrew it is when you take off the polarizer Link to post Share on other sites More sharing options...
nussbusch Posted January 17, 2024 Share #19 Posted January 17, 2024 I use the B+W Zirkularer Polarisationsfilter Käsemann High Transmission MRC Nano Master 49mm (16x vergütet, Slim, Premium). Great! Link to post Share on other sites More sharing options...
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