The Filters We Need With Digital...

Started Oct 5, 2008 | Discussions thread
Henrik Andersson Senior Member • Posts: 2,454
Re: Pentax curved filters...

BorisK1 wrote:

MisterBG wrote:

BorisK1 wrote:

Do I see a WikiPedia article in the making?

For what it's worth, the close-up "filters" are curved too.

That's because they are lenses, not filters.

"Lenses" are attached to the lens mount, while "filters" are attached
to the filter thread. So there.

You can attach lenses in front of the main lens too. Changing the focal length with a tele- or wide angle adapter comes to mind.

I wouldn't say that those are "filters" but rather one or more lenses.

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