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#11
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Quote:
You can get single coated filters - but they are not common - or significantly cheaper than multicoated ones. Single coated filters get 90% ish of the flare. Multicoated filters get 99% ish of the flare. So there is a difference and multicoated is better but the biggest jump is from uncoated to single coated. A tip for looking after your coated filters and lenses (multicoated or otherwise) - the fluorine coating material is water soluble - so don't breath on your lens and then wipe off the moisture - you are slowly wiping off the coating. Personally, I dust my filters and lenses with Lens Pen bush and never put my sticky fingers anywhere near the glass surfaces. Martin |
#12
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Do you have a source, Martin, for multicoating being water soluble? I’d be interested to read it. Breathing on a lens or filter has long been advocated by photographic authors and approved lens cleaning fluids often have a high distilled water content. Have we all been slowly reducing them to single coated or even uncoated status? Surely not.
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#13
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Hoya is cheap and good quality
Hoya is a decent make and seems good quality, ive had this UVc filter for 2 years and its been great.
I bought from amazon https://www.amazon.co.uk/gp/product/...?ie=UTF8&psc=1 ------------------------- Mark Johnstone Photography https://markjohnstonephotography.com |
#14
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I was told it by a Zeiss rep at a photo show. He didn't recommend lens cleaning fluid either and I don't think any of the lens manufacturers do either. And just because we have all being doing it for a long time doesn't take it right. Its up to you though. Martin |
#15
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I just did a quick Google search and it revealed that not only does Zeiss market its own lens cleaning fluids but it also recommends that all spectacle lenses - which would include multi-coated - should be washed in running water to clean them. Maybe the Zeiss rep had had too much exposure to the fumes from the lens cleaning fluid.
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#16
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Are there filters specifically designed for digital or, vice versa, for silver halide/gelatine? I recently heard a salesman in a camera shop assure a customer that he should upgrade his early Nikkors to the latest spec (which share the same mount), explaining that film is matt whereas a sensor is shiny, requiring a different shape at the rear element.
I remember a range (were they by Pentax?) of domed filters, introduced in the sixties, claiming to avoid reflections at the front element. On tracing rays crudely on paper, it seemed to make sense at the time. It certainly works on spectacle lenses! |
#17
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Mike Last edited by MikeHeller; 24th September 2018 at 09:02 AM. |
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