Originally posted by HermanLee Wow, cool!
Will this method work with any TC, ex: Tamron 1.4x, or Vivitar Macro 2x TC ?
Now, how is the photo looks like without the glass element? Will it be the same or even better?
Thanks again.
It should work with all types of TC's, I have tried three differnet brands including vivitar. However, the 2X TC's will give you a 25mm ext. tube, where as the 1.4's would be narrower.
The second photo above was taken with the FA77 and a 25mm ext. tube converted from a TC. It's an uncropped image, so yeah it can get close. I am planning to make a 100mm tube for the sigma 100-300 F4 and use it with the Pentax 540 flash (The subject to lens distance will allow for this flash).
The TC's deteriorate the IQ, the ext. tube barely changes the IQ, just a fall in light, but with the sigma 100-300 and the 540 flash it should be irrelevent. Hopefully someday, I'll have time to take some shots and psot.