Yes, I should have done, Moose.
But I wasn't expecting this sort of problem; I haven't seen it for years.
Chris
On 4 Mar 14, at 05:36, Moose <olymoose@xxxxxxxxx> wrote:
> On 3/3/2014 8:47 AM, Chris Barker wrote:
>> Thanks, Bob. The retailer suggests that the banding is as a result of jpg
>> artefacts.
>>
>> I always thought that polarisers did best on wideangles, but it's ages since
>> I last used one. 18mm = about 27mm equivalent.
>>
>> I'll keep the filter, since it seems to work fine.
>
> As there is much more obvious banding on the 900 px version down sampled on
> the fly by the gallery software, it would
> appear to be JPEG artifacts.
>
> OTOH, I don't understand why in testing you wouldn't take otherwise identical
> shots with and without polarizer. That
> would allow clear differentiation.
--
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