Polarisinig filters - what's the difference?

BIGEYE

BIGEYE

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Can anyone tell me the difference (apart from the price) between these two polarising filters

http://SPAM/3fezelt

http://SPAM/3jfh3n2
 
One's sold by Amazon themselves as the other is by one of their Marketplace sellers.....
 
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They are totally different filters. I'm not sure exactly what makes the Kaesmann filters better - something to do with sealing between the two parts of the filter? Perhaps you can google it?
 
Thanks, found some info on these and have gone for the more expensive of the two.
 
Why would you want a B + W filter? Can't you make that effect in PS?

New to photography sorry if its a dumb question but £100 for a filter!
 
hollis_f said:
They are totally different filters. I'm not sure exactly what makes the Kaesmann filters better - something to do with sealing between the two parts of the filter? Perhaps you can google it?
Click to expand...

I did and found this -

B+W “Käsemann” Polarizing Filters DIGITAL-PRO SLIM MRC
The “high-end” polarizing foils of the Käsemann-type filters are neutral in color, they have a higher efficiency than conventional polarizing foils and they are cemented between high-grade plano-parallel optical glass. The resulting sandwich is then precision-polished again to achieve highly accurate plano-parallel surfaces. Subsequently they are edge-sealed to protect the foil against humidity. Brass mounts made on CNC-controlled machines ensure precise seating on the lens. Discriminating photographers regard the B+W Käsemann-Type Polarizing Filter to be the very best of all polarizing filters. They are well suited for applications that require the highest possible imaging quality, especially with high-speed telephoto lenses and apochromatic lenses. They are available as linear and circular polarizing filters, mostly with MRC and also with SLIM- or oversized wide-angle mounts.

B+W Circular Polarizing Filter DIGITAL-PRO SLIM MRC
Highly efficient standard circular polarizing filter for all cameras with beam splitters in the light paths of their TTL exposure meter and with autofocus lenses. Circular polarization has the same pictorial effect as linear polarization, but allows for proper exposure metering and/or autofocus distance settings. B+W Polarizing Filters are available uncoated and with B+W’s proprietary MRC coating.

and there was this PDF as well www.schneideroptics.com/info/handbook/pdf/B+WHandbook12_15.pdf

and also....

Of all the B+W polarizing filters which we offer, the Käsemann configuration has the highest optical quality. The polarizing film is more neutral in color, the efficiency (extinction of distorting reflections) is higher, and the cover glasses are additionally ground and polished. For this reason, the image sharpness (MTF) of a high quality camera lens is not impaired (particularly applicable to aspherical zoom lenses). In addition, the centered edge of the glass of the polarizing filter receives a lacquered edge which protects it against moisture, a feature which prolongs the useful life of the filter and improves the usefulness of the filter in tropical climates. All of these factors are very important criteria in deciding on a good polarizing filter.

For this reason, professionals (professional photographers) use exclusively B+W Käsemann polarizing filters.
 
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B16 VAS said:
Why would you want a B + W filter? Can't you make that effect in PS?

New to photography sorry if its a dumb question but £100 for a filter!
Click to expand...

No you can't make the effect in Photoshop. And as this is a well used filter it is worth paying the extra and buying a good one.
 
B16 VAS said:
Why would you want a B + W filter? Can't you make that effect in PS?

New to photography sorry if its a dumb question but £100 for a filter!
Click to expand...

B&W is the manufacturer.

I'll say no more..
 
Nikon Fan said:
No you can't make the effect in Photoshop. And as this is a well used filter it is worth paying the extra and buying a good one.
Click to expand...

I see, any images using this lens so I can see this type of 'effect'? thanks.
 
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