Filters and Rotating Lenses

dfrear · 18-01-2008, 3:46 PM

I was going to buy some circular polarising filters for my lenses but I have realised that all my lenses rotate at the end while focusing. Is there a filter system out there which this doesnt affect or am I stuck without?

Cheers

willykatie · 18-01-2008, 4:01 PM

I thought you can put any circular polarising filter to any lens?

Alphatoner · 18-01-2008, 4:11 PM

That's what circular filters are for, to cope with lenses that rotate.

allymac123 · 18-01-2008, 4:12 PM

I don't think there is a way to use a CPL with a front rotating element apart from to just keep adjusting it after you have focused and zoomed. You normally have to adjust the CPL for each shot anyway so unless your taking loads of shots in a rush I don't see how it should be that much of a problem.

Saying that, apart from my 70-300 all my lenses don't have rotating front elements so I might not fully appreciate how much of a problem it is!

Alphatoner · 18-01-2008, 4:14 PM

Should have added that these filters rotate freely and are designed so that the filter is rotated after focusing to get the desired effect.

dfrear · 18-01-2008, 4:29 PM

I see, I wasnt aware that they rotate independently. Thanks for clearing that up guys.

18-01-2008, 4:11 PM	#3
Alphatoner Ex Member Join Date: Sep 2004 Location: Berkhamsted Thanks: Gave 65, Got 40 Posts: 658	Re: Filters and Rotating Lenses That's what circular filters are for, to cope with lenses that rotate.
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18-01-2008, 4:14 PM	#5
Alphatoner Ex Member Join Date: Sep 2004 Location: Berkhamsted Thanks: Gave 65, Got 40 Posts: 658	Re: Filters and Rotating Lenses Should have added that these filters rotate freely and are designed so that the filter is rotated after focusing to get the desired effect.
	Quote