split focus
glassmandavo wrote:
Spiratone sold an inexpensive adapter in the 70's, that was essentially a bifocal add-on for your lens. It had a semicircular element in the lower half of the housing that screwed into your lens' filter ring (or slipped over the outside, I can't remember exactly now). The effect was near focus in the foreground, infinity or distance focus in the upper half.
Check on Ebay.
I think those sort of split focus diopters were made by just about everyone. I think mine is a Pentax version, but I've also seen them in a Cokin catalogue, and models from quite a range of other manufacturers listed on the bay. The OPs post seems to be talking about something different however.
Pentax K100D
Sigma SD14
Pentax K-7
Panasonic Lumix DMC-GF2
Pentax Q
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Dec 3, 2018
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Dec 3, 2018
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Dec 11, 2018
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