keithlaban.co.uk Posted January 4, 2016 Share #1 Posted January 4, 2016 Advertisement (gone after registration) Hi all. Simple question. Having never used a polar filter on an M camera what do I need, circular or linear? I'll be using it on my M240 in combination with an EVF so there will be no problem viewing the effect. TIA Keith Link to post Share on other sites More sharing options...
Advertisement Posted January 4, 2016 Posted January 4, 2016 Hi keithlaban.co.uk, Take a look here Polar filter for use with M240 and EVF. I'm sure you'll find what you were looking for!
jaapv Posted January 4, 2016 Share #2 Posted January 4, 2016 Linear. There are several ways to use it, firstly the Leica Swing-out. I find it quite practical, then you can use two filters, one on the camera and one in the hand and correlate the directions, you can just watch for the dip in the exposure as you turn the filter, and finally there is the LeicaGoodies STEPS (http://www.leicagoodies.com/) solution, which can be done in DIY as well. Link to post Share on other sites More sharing options...
keithlaban.co.uk Posted January 4, 2016 Author Share #3 Posted January 4, 2016 Linear. There are several ways to use it, firstly the Leica Swing-out. I find it quite practical, then you can use two filters, one on the camera and one in the hand and correlate the directions, you can just watch for the dip in the exposure as you turn the filter, and finally there is the LeicaGoodies STEPS (http://www.leicagoodies.com/) solution, which can be done in DIY as well. Thanks Jaap, can always rely on you for a quick answer Linear it is. I'll be using it with an EVF so I'll be able to view the effect without need for the Swing-out or any other accessories or techniques. Link to post Share on other sites More sharing options...
keithlaban.co.uk Posted January 4, 2016 Author Share #4 Posted January 4, 2016 Most polar filters on the market are circular. It's difficult to actually find a decent e46 fit linear filter. Any suggestions? Link to post Share on other sites More sharing options...
jdlaing Posted January 4, 2016 Share #5 Posted January 4, 2016 Most polar filters on the market are circular. It's difficult to actually find a decent e46 fit linear filter. Any suggestions? http://www.bhphotovideo.com/bnh/controller/home?O=&sku=21928&gclid=CPvc6eXAkMoCFQEIaQodNSYKoA&Q=&ap=y&m=Y&is=REG&A=details Link to post Share on other sites More sharing options...
Schrödinger's cat Posted January 4, 2016 Share #6 Posted January 4, 2016 This is a pretty good discussion of polarizing filters from a widely read source. http://www.bobatkins.com/photography/technical/polarizers.html You will find that linear polarizers are kinda thin on the ground. Most are going to be circular. I rather like the B & W brand of filters, but Hoya is also widely respected as are several others. Generally, as long as you cheap out you'll be fine. This fellow talks a bit about filter quality, which might aid in your selection. http://www.the-digital-picture.com/Reviews/Circular-Polarizer-Filters.aspx Link to post Share on other sites More sharing options...
keithlaban.co.uk Posted January 4, 2016 Author Share #7 Posted January 4, 2016 Advertisement (gone after registration) Can't seem to source the Heliopan in the UK. I usually go for B&W filters but again linear polarising filters of any make seem to be thin on the ground. May well have to bite the bullet and get the wallet out for a circular. Link to post Share on other sites More sharing options...
pgk Posted January 4, 2016 Share #8 Posted January 4, 2016 Can't seem to source the Heliopan in the UK. http://www.teamworkphoto.com/heliopan-filters-c-1047_79_1158.html Link to post Share on other sites More sharing options...
jaapv Posted January 4, 2016 Share #9 Posted January 4, 2016 Most polar filters on the market are circular. It's difficult to actually find a decent e46 fit linear filter. Any suggestions? Of course, there is nothing stopping you to use a circular polarizer instead of a linear one on the M. There will be no negative effect, even a miniscule positive one on exposure metering.* * Because the classic metering is reflective off the shutter blades, there is about 1/4 stop variation by using a linear polarizer. Link to post Share on other sites More sharing options...
keithlaban.co.uk Posted January 4, 2016 Author Share #10 Posted January 4, 2016 http://www.teamworkphoto.com/heliopan-filters-c-1047_79_1158.html Thanks, I had looked at Heliopan at Teamwork but they were all linear. Link to post Share on other sites More sharing options...
keithlaban.co.uk Posted January 4, 2016 Author Share #11 Posted January 4, 2016 Of course, there is nothing stopping you to use a circular polarizer instead of a linear one on the M. There will be no negative effect, even a miniscule positive one on exposure metering.* * Because the classic metering is reflective off the shutter blades, there is about 1/4 stop variation by using a linear polarizer. Thanks again, Jaap. I'll probably go for a circular. Link to post Share on other sites More sharing options...
platel Posted January 10, 2016 Share #12 Posted January 10, 2016 Jaapv, why would you say you would need (want) a linear polariser on the Leica M? I find that a "circular" one, positioned via live view on the M works well. Link to post Share on other sites More sharing options...
jaapv Posted January 10, 2016 Share #13 Posted January 10, 2016 Because that is not what I said; it is all you need. Both a circular and linear filter will work on an M, as there is no (semi-transparant) mirror in the light path. The official Leica polarizer is linear. On a DSLR a circular filter is mandatory. Link to post Share on other sites More sharing options...
Schrödinger's cat Posted January 11, 2016 Share #14 Posted January 11, 2016 Because that is not what I said; it is all you need. Both a circular and linear filter will work on an M, as there is no (semi-transparant) mirror in the light path. The official Leica polarizer is linear. On a DSLR a circular filter is mandatory. I too misinterpreted your response. I think we misunderstood your answer. Copying from the original post, the OP's question was "what do I need, circular or linear?" Your response was "Linear. There are several ways to use it, firstly the Leica Swing-out. I find it quite practical, then you can use two filters, one on the camera and one in the hand and correlate the directions, you can just watch for the dip in the exposure as you turn the filter, and finally there is the LeicaGoodies STEPS (http://www.leicagoodies.com/) solution, which can be done in DIY as well." Caps, underlines, and italics are my own. Perhaps you can see why we (including apparently the OP) were confused by your response. Link to post Share on other sites More sharing options...
jaapv Posted January 11, 2016 Share #15 Posted January 11, 2016 Well, maybe you missed post #9. Link to post Share on other sites More sharing options...
Schrödinger's cat Posted January 11, 2016 Share #16 Posted January 11, 2016 Well, maybe you missed post #9. No sir, I saw the correction. Link to post Share on other sites More sharing options...
keithlaban.co.uk Posted January 11, 2016 Author Share #17 Posted January 11, 2016 Just to be clear, I never thought, or was led to believe that I couldn't use a circular polariser on the M240, but I was unclear on whether I could use a linear polariser. I didn't consider Jaap's responses as misleading. If there was any confusion or if anyone was at fault here it was me: my question should have been clearer. Link to post Share on other sites More sharing options...
Schrödinger's cat Posted January 12, 2016 Share #18 Posted January 12, 2016 Just to be clear, I never thought, or was led to believe that I couldn't use a circular polariser on the M240, but I was unclear on whether I could use a linear polariser. I didn't consider Jaap's responses as misleading. If there was any confusion or if anyone was at fault here it was me: my question should have been clearer. Then it's clear that no one was confused except me By the way Keith, nice website I particularly liked http://www.keithlaban.co.uk/LM240_1134_Ess15.html Link to post Share on other sites More sharing options...
keithlaban.co.uk Posted January 12, 2016 Author Share #19 Posted January 12, 2016 Then it's clear that no one was confused except me By the way Keith, nice website I particularly liked http://www.keithlaban.co.uk/LM240_1134_Ess15.html Apologies for any confusion Many thanks for taking the time to view and for your kind comment, much appreciated. Link to post Share on other sites More sharing options...
Nick Bedford Posted January 14, 2016 Share #20 Posted January 14, 2016 I use a B+W 39mm circular polarising filter myself. I really have to get around to marking out the horizontal and vertical planes now that I think of it, so I don't have to keep going to Live View. This is an example using that B+W filter through a Summarit 35mm f/2.5 lens. Link to post Share on other sites More sharing options...
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