The 300 2.8IS+2x+1.4x+10D will still AF.
The 300 mm F2,8 IS is the sharpest with the 500 mm F4 IS . They are even sharper in the center than the mythic 200 mm F1,8. But the 200 mm was the sharpest lens at 1,8 of the world.
yes very visible difference. I owned 2 300mm F4 and did not like them much. they were not very sharp wide open and had to be stopped down to F8. the 300mm F2.8 L is in another league completely but it is much more expensive and bigger and heavier.
definitly go with teh F2.8 if you want to add a TC.
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This varies by copies...I've seen quiet a few of the 300/4 IS that were very sharp wide-open. You mus have rec'd some bad copies. The 300/4 IS is a top quality lens owned by many.
--definitly go with teh F2.8 if you want to add a TC.
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ah ok, I did not know the camera could only see one tc.
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Bill
Taking It One Day At a Time
http://www.pbase.com/slowpokebill
'The fact that no one understands you doesn't mean you're an
artist.' Unknown
'Every man dies; but, not every man lives' Braveheart
'Sometime the magic works. Sometimes it doesn't' Little Big Man
Speed is not bad exactly. In good light with a high contrast target it snaps right in but if light is less than good or the target is a little low in contrast it tends to hunt some...hunt isn't even the right word...it will stutter until it locks.
Not true at all. The 300 f/4L IS is very sharp and even with a 1.4x TC produces excellent results. In fact it is sharper than a 100-400 and only just behind a 400 f/5.6L. The 300 f/2.8L IS is of course sharper again and seems to lose nothing with a 1.4x TC and produces very good results with a 2x TC.
