Tamron SP flat-field 2X tele-converter model 01F is nice addition to anyone using wide range of Tamron adaptall and adaptall-2 lenses. It was produced for 20 years so it is not hard to find and price is usually right. It is especially useful with Tamron SP 90mm model 52B and 52BB. I'll upload user manual for it so you can find all details about it and how it works in combination with most popular Tamron lenses of it's time.
Ah yes I almost forgot If you decide to obtain one pay attention to rear element in really old examples minor haze can occur but if you already have one it can be cleaned easily. if you need instructions how to clean it pleas leave PM and I'll help (I'm intending to write picture guide)
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Posted by: Radovan Date of publication: 17.06.2013