Quote:
Originally Posted by dcstep
Well now, you've forced me to call bull shit. I use a 25mm extension tube and a 1.4 TC with my f4 all the time. In fact, I took around 100 macros today with the 70-200 f4 plus the ET.
The f4 is significantly sharper than the 2.8, so when you put that ET or TC on your not amplifying distortion.
Dave
|
never said the extension or the 1.4tc cause distortion...(if my long winded paragraph made it sound so...it was unintentional)
I was saying that when using the 1.4TC, you must give up a stop automatically, so starting from 2.8 and going to 4, is amazing (b/c you have a ridiculous telephoto thats F4)if you started with F4, and lost a stop to F 5.6, youre pretty much giving up the ability to shoot hand held in low light without huge iso bumps @ F5.6
as far as the macro tube, it works on both 2.8 and 4 w/o giving up a stop...so theres no difference really there, but the bokeh when you do macro shots is really nice with 2.8 vs. 4
its the 1.4 TC that has the difference b/c you give up a stop
and the F4 is not SIGNIFICANTLY sharper, its pixel picky sharper, but we'll see whos sharper when the lights go down
