-----Original Message-----
From: Terry Danks <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
>>I think it's the sharpest lens I ever owned prior to my new 500 f/4 IS
>>lens. I know lot of people
>>who use the 400 f/2.8 and they also think it's fantastic. Everyone I
>>know shoots it wide open. [snip]
>
>If I need to stop down the 400/2.8 to 5.6 for satisfactory results I'd
rather
>obviously prefer to carry (not to mention pay for!) the 400/5.6 instead.
>There must be something wrong here.
>--
Problem is, to get the same quality as the 400/2.8 at 5.6, you'll need to
step it down to f11 or so on the 400/5.6; AND you don't have the f2.8-5.6 if
you really need it.
I don't own this lens but have borrowed one before and I think f5.6 is a bit
pessimistic. At f2.8 the lens is already very sharp and at f4 incredibly
sharp if your techinque is right.
My2c
Regards
Thys
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