Posted by John W. Wall on August 29, 2006 at 2:42 PM
I recently got a 17-35mm after a lifetime of never using anything wider than my trusty 24mm. I got one of the new Singh-Ray LB Warming Polarizers for it (in 77mm) and was surprised to see how thick it is. It vignettes at 22mm and wider, which was a pretty disappointing feature in a $210 filter. Is there such thing as a thin enough filter for ultra-wides?
BW/Schneider makes them, and they're excellent. I've linked to the B&H page for the plain one. They're not cheap at $109 and $176 for MC, but worth the investment. To my knowledge BW/Schneider does not make a warming cp, The only hassle is the lack of a threaded front on the ring so you can use conventional lens caps. They are provided with a plastic slip-on cover which is good for protection in the case, but prone to falling off when carrying the lens mounted on a camera in the field.
Keep in mind that the warming effect is really more useful with film which has a pre-determined color temperature. With digital you can achieve the same effect by varying the white balance setting so a normal polarizer would work just as well.
In fact ifyou set your camera to auto white-balance it may lessen or completely eliminate the warming effect from the filter.
I have a slim Tiffen polarizer too...I used it on my 18-35mm when I was still shooting film and now on the 12-24 DX that I use with my digital bodies.
And, to echo Guy's comment re warming filters...I had a set of warming polarizers that I used when I was shooting film but I removed them from my bag when I made the digital conversion three years ago because the effect is negligible with Auto WB; it can be adjusted with far greater precision by tweaking the white balance during RAW file conversion.
Posted by Kent Staubus on August 30, 2006 at 2:45 AM
I use both a B+W or a Hoya SMC thin (slim) polarizer on my Nikon 18-35mm all the time (F100 film body) and have never had an issue. They are very thin. Seems like Singh Ray or someone makes a VERY thin polarizer that's supposed to only take one stop of light. I don't worry about warm filtering either. I've learned how to do that almost well enough in PS.
Kent in SD
Posted by Rod Barbee on August 30, 2006 at 9:23 PM
Singh-Ray also makes a thin mount LB Polarizer for $30 more. You might try calling them to see if you can make a trade. That would be cheaper than buying a new filter.
Buy the way, how do you like the extra light the LB lets through?
Posted by John W. Wall on August 31, 2006 at 2:03 PM
Yeah, I thought I was getting the thin mount, but I got my signals crossed somewhere. I've only used the filter on the 17-35, so the extra light hasn't been an issue. I think it'll be more handy on the 300/4, especially when I've got the 1.7X on it. I've never used a polarizer with long glass before (excluding a 200/Micro), so I'm getting off to a slow start....
Posted by John W. Wall on August 31, 2006 at 2:21 PM
By the way, I just called them and they don't take trades. They put me on hold but I got disconnected instead. They said they do have thin mount LB polarizers, but I can't find them on their web site, so maybe they have to be ordered by phone.
Posted by Jim Goldstein on September 2, 2006 at 7:05 PM
John they won't trade opened filters, but they will trade unopened filters. I know this because I recently exchanged a filter I received as a gift. It might take some workto convince them otherwise. Also I've found it best to reach them in the morning versus the afternoon. I hope the information helps. Also if you're around this weekend we shoudl cross paths. I'll try to email you.
Discussion
9 repliesGuy
In fact ifyou set your camera to auto white-balance it may lessen or completely eliminate the warming effect from the filter.
Guy
And, to echo Guy's comment re warming filters...I had a set of warming polarizers that I used when I was shooting film but I removed them from my bag when I made the digital conversion three years ago because the effect is negligible with Auto WB; it can be adjusted with far greater precision by tweaking the white balance during RAW file conversion.
Kent in SD
Buy the way, how do you like the extra light the LB lets through?