Thread: Exposure Chip
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Old Saturday 11th June 2016, 08:54   #15
Paul Corfield
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Join Date: Feb 2005
Location: Corfe Mullen, Dorset, UK
Posts: 3,010
Compared a couple of TC's with the Sunagor 100-200mm TN yesterday. Used my big Vivitar TC for Pentax 6x7 medium format which I really like and it gives the least amount of mag out of the 3. There's a thread on that medium format TC here http://www.birdforum.net/showthread.php?t=302899 Second photo is Sunagor and last photo is the Vivitar macro focusing TC. Macro TC is 7 elements and the Vivitar medium format is 6 element and both give slightly more depth of focus than the TN I noticed. The medium format one is available as a Teleplus just as the macro focusing ones are. Rokunar also had one the same copy as Vivitar/Teleplus 6x7. Komura made a similar one too.

As well as Pentax 6x7 there was Mamiya 645 medium format and Hasselblad of course. All these TC's crop up in those mounts too.

Paul.
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Last edited by Paul Corfield : Saturday 11th June 2016 at 09:17.
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