Guest NEIL-D-WILLIAMS Posted July 5, 2016 Share #1 Posted July 5, 2016 Advertisement (gone after registration) I recently bought a CPL and yesterday tried it for the first time on my S007. Looking through the viewfinder I found it very difficult to see any difference and there are no markings on the CPL itself. ........ Is there a trick to this???? Link to post Share on other sites More sharing options...
Advertisement Posted July 5, 2016 Posted July 5, 2016 Hi Guest NEIL-D-WILLIAMS, Take a look here Using a CPL . I'm sure you'll find what you were looking for!
Jeff S Posted July 5, 2016 Share #2 Posted July 5, 2016 Helps to have some polarized light. Jeff Link to post Share on other sites More sharing options...
John McMaster Posted July 5, 2016 Share #3 Posted July 5, 2016 The CPL is not as marked in effect as the linear polarisers, any polariser needs the right conditions to have some effect... john Link to post Share on other sites More sharing options...
Guest NEIL-D-WILLIAMS Posted July 5, 2016 Share #4 Posted July 5, 2016 The CPL is not as marked in effect as the linear polarisers, any polariser needs the right conditions to have some effect... john So John. One thing I noticed is that if I was looking at the shutter speed speed while rotating the CPL I would see the shutter speed slowing down......... Is the idea to get the shutter speed to slow down to the max or to ??????? Link to post Share on other sites More sharing options...
Jeff S Posted July 5, 2016 Share #5 Posted July 5, 2016 The idea is to get the picture to look the way you want. Jeff Link to post Share on other sites More sharing options...
Jeff S Posted July 5, 2016 Share #6 Posted July 5, 2016 Since you can't search... http://www.cambridgeincolour.com/tutorials/polarizing-filters.htm Jeff Link to post Share on other sites More sharing options...
Guest NEIL-D-WILLIAMS Posted July 5, 2016 Share #7 Posted July 5, 2016 Advertisement (gone after registration) Since you can't search... http://www.cambridgeincolour.com/tutorials/polarizing-filters.htm Jeff i prefer to search the forum for a more interactive experience Jeff Link to post Share on other sites More sharing options...
Jeff S Posted July 5, 2016 Share #8 Posted July 5, 2016 And interact I did....read link above. Jeff Link to post Share on other sites More sharing options...
Guest NEIL-D-WILLIAMS Posted July 5, 2016 Share #9 Posted July 5, 2016 And interact I did....read link above. Jeff cheers mate Sent from my iPhone using Tapatalk Link to post Share on other sites More sharing options...
menos I M6 Posted July 7, 2016 Share #10 Posted July 7, 2016 I use CPLs with my tele photo lenses to cut down on reflections. In some conditions it is indeed difficult to judge which CPL orientation will net the best effect. This is what I do in such situations: Point the camera to a transparent glass object very close to your actual subject (you don't want to alter the angle between the mein light source (sun) and the lens axis). Very easy to see for this are car windows or office buildings with large glass facade panels. Turn the CPL to see when the glass subjects become most transparent vs when they are mostly reflecting sunlight into your lens - decide what you want (full reflections = least filter effect, least reflections = max filter effect or somewhere in between). Leave the CPL filter set and shoot your subject. Another trick is to watch your exposure meter (TTL): Max filter effect is reached when your meter reads the longest exposure time vs least filter effect is reached when your meter reads the shortest exposure. Another trick is to watch for contrast changes - if you have a clear sky and have distinct white puffy clouds - point the camera to see sky and clouds at the same time and adjust the CPL filter - you will easily see the effect the filter has when adjusted. Another good indicator for CPL filter effects is to watch for car glass lamination effects (something that is problematic in automotive product photography). With a CPL set at maximum filter effect, car glass (which consists of several laminated layers) will show a very distinct blotchy repetitive pattern. Very easy is also to look for reflections (landscapes with reflections in water) - the typical sunset at the beach shot comes to mind - watch the sparkling reflections on the water surface while you adjust the CPL - least reflections = max filter effect). Link to post Share on other sites More sharing options...
albertknappmd Posted July 10, 2016 Share #11 Posted July 10, 2016 well stated M6!Albert Link to post Share on other sites More sharing options...
Guest NEIL-D-WILLIAMS Posted July 10, 2016 Share #12 Posted July 10, 2016 I've got the hang of it now. I just watch the shutter speed and either stop when the shutter speed starts to speed up or just judge it by what I see in the viewfinder. 9/10 it's shutter speed I go by Link to post Share on other sites More sharing options...
Jeff S Posted July 10, 2016 Share #13 Posted July 10, 2016 At the end of the day, it should be an aesthetic choice, not a mechanical one. Polarizing effects can ruin some pics, and help others, in varying degrees. No different conceptually than deciding when/how to use color filters, except that you have more flexibility and control all in one. Jeff Link to post Share on other sites More sharing options...
LorenzoLandini Posted July 11, 2016 Share #14 Posted July 11, 2016 One more comments to the very good ones posted so far: the polarizer produces the greatest effect once the lens is at 90 degree from the sun. if the sun is in the back of you (or in the front) the effect of a polarizer is basically zero. Lorenzo Link to post Share on other sites More sharing options...
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