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F11 lens with 2x TC = F22?

Started Aug 5, 2020 | Questions thread
makofoto Contributing Member • Posts: 534
Re: F11 lens with 2x TC = F22?
1

I've use a LOT of extenders. I would basically never use a 2X extender. Only 1.4 extenders. Just too much loss of rez with a 2X.

Here, from 1967! with the first commercially available 2X extender, from Spiratone if I recall correctly. There were no 1.4X back then.

With a 500mm F5.0 CAT Nikkor. Not sharp ... none of our tele's were very good until ED and/or Fluorite elements became a thing ... but the Graphic nature helped make it a sellable shot.

Scan of a print. Perhaps I can find the negative ... one day.

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