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Webguy
06-23-2007, 02:51 PM
<div>Occasionally, I need a panoramic photo that depicts one of the school districts that I work for. It is not unusual, even on a clear day, to find distant hills and mountains a little hazy, to a lot hazy. I bought a Hoya multi-coated cir-polarizing lens for my d50 in the hopes that it would overcome some of the hazy. I am under whelmed with the results. I can barely see any difference at all between a filtered and unfiltered shot. I certainly don't see the difference shown on the Hoya lens case. Is this just a case of the marketing levels being way ahead of the production levels, or am I doing something wrong?</div><div> </div><div>Bob</div>

drh681
06-23-2007, 03:30 PM
<div>well polarizing is not going to be even across a panorama. polarizers work best at 90 degrees angle to the sun...</div><div>at mid-day during the summer you might get a good effect, but the winter months have more sun angle and that will reduce your options.</div><div>and to make the polarizer &quot;work&quot; you need to turn the outer ring while you look through the viewfinder.</div><div>polarizing also will not remove haze caused by particles in the atmosphere, though it will deal with the light being reflected by those particles...</div>

Lazy_Eye
06-23-2007, 06:16 PM
<div>You need a haze filter, not a polarizer. They are made to reduce the scattering effect UV light, which appears as obscuring haze. Make sure it is actually a haze filter, which is not the same as a skylight filter. There are several grades but the higher grades are very expensive and are made primarily for ENG video cameras. Digital SLR's shouldn't need one since they already have a &quot;hot&quot; filter, which is also meant to filter out UV. </div>

Webguy
06-23-2007, 06:22 PM
<div>Thank you, I did not consider that the angle of the sun might play a part in this.</div><div>Bob</div>

Webguy
06-23-2007, 06:24 PM
<div>Should I look for any particular manufacture for the haze filter?</div><div> </div>

DrJalapeno
06-23-2007, 07:19 PM
<div></div><div>Tiffen makes two different strengths of haze filters (more info. <a target="_blank" href="http://www.2filter.com/tiffen/tiffenfilterinfo.html">here</a> and available at <a target="_blank" href="http://www.adorama.com/Search-Results.tpl?page=searchresults&amp;searchinfo=tiffen%2 0haze">Adorama</a>), but honestly, I don't think that's going to help you.</div><div>Forum member Landscaper recently posted an explanation of the two different types of haze present which I found interesting--</div><div><hr></div><div> </div><div><em>&quot;There are two kinds of &quot;haze.&quot; There is water vapor haze, caused by high humidity. And there's &quot;smog,&quot; which is caused by suspended dust and dirt in the air. UV and polarizing filters can reduce water vapor haze. So will other on-camera and post processing techniques. Those, however, will do nothing to diminish smog.&quot;</em><br></div><div><hr></div><div> </div><div> </div><div> </div><div> </div><div> </div><div> </div><div> </div><br><br>Message Edited by DrJalapeno on <span class="date_text">06-23-2007</span> <span class="time_text">06:21 PM</span>

ronk
06-24-2007, 03:48 AM
<div>On the other hand, haze in the distance is a plus factor; it enhances the feeling of space and distance in the picture.</div>

canonist
06-24-2007, 07:39 AM
<div>Yep, you need a uv haze, but like stated, it may or may not help you.</div>