They say don't do this!
 

1.4x Teleconvertors = good 2.0x TC = okay but not so good, </p>
<p>Stacking them = a no-no.</p>
<p>I've never been too good with obeying rules........Soooooooooo........</p>
<p>400mm + 2x TC + 1.4 TC = 1,120mm</p>
<p>Add in a little PS.......</p>
<p>And</p>
<p><img src="http://i169.photobucket.com/albums/u221/uplandgunner/Birds/EagleStackedTCs.jpg" border="0" alt="" /></p>
<p>Oh Yeah ...BTW the shot was handheld<img src="http://thephotoforum.com/forum/images/smilies/icon_biggrin.gif" border="0" alt="" title="biggrin" smilieid="106" class="inlineimg" /></p>
<p>&n