lens opinions

[Xander]

Originally Posted by Warthog

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Having said that, IIRR, the issue with teleconverters is that you loose autofocus and 1 or 2 f stops. However, I seem to recall that autofocus was not affected if the lense is fast: perhaps f2.8 would cope...
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You have narrowed down your choice, but out of interest, why did you reject the Sigma 28-200 lens: they have a very good rep....

Hi guys, thanks for your thought. I have played with both lenses and this actually made it worse. Just for the record though this sigma lens and converter combination is desgined to maintain auto-focus as well as auto-focus speed (Tele Converter matching list - SIGMA CORPORATION). I know that i will lose fstops but the difference between the nikon and ths sigma at 400 is 0 both being 5.6. so now it comes down to sharpness

Wart: I actually dont know about the sigma 28-200 do you mean the 28-300 and if so it does not do what I want. If you mean the 28-200 nikon I have an older version of it, and it is a good lens but it would need to be rechipped to work with my new camera.. (it is for sale btw)

ahh the sleepless nights continue.. the good new is that i now have the blessing either way from SWMBO!!!