t6-2X Teleconverter and 300/4

[paul_stenquist]

Does anyone have experience with the T6-2X Converter on a 300/4 lens? Does this combination produce images of acceptable sharpness and contrast? Is there a better 2X converter for the 300/4?

Paul Stenquist

[steve_rasmussen]

The old version 300 did not have a tripod mount and so was subject to

shutter vib at certain shutter speeds. Adding a 2x would cause more

overhang and increase the problem. The extra magnification would just

add to the situation. The 300 ED would be a much better choice due to

vib and color correction issues. I have seen some nice shots with the

old 300 and 2x, so it can be done.

[douglas_pollock1]

Bogen/Manfrotto makes a long lens support which works well with the

T6-2X and 300mm/4 lens. It's #234RC. Works well to balance the

weight at a midpoint. And I bought it new for under $50.00.

[douglas_pollock1]

Oops. I got the Manfrotto/Bogen lens support item number wrong in my

previous post. It's actually #3420. The other number was the part

number for the quick connect.

[possi]

I tried the New 4/300 IF with the 2x Conv (org Pentax), and got

fantastic results at f 5.6 and 8.0. You need definetely a good tripoid

and I suggest to use the mirroe lock.

 

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Gruss

Possi

 

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http://www.possi.de/