400mm f/4 DO IS opinions?

[Kayaker72]

Hi Fast Glass....

I'd be tempted too for $2,150.

You may have already seen these, but:

• Art Morris did a positive write up on V1. Good comments section.
• Ari Hazeghi's write up on the V2 model has a couple paragraphs of impressions on V1 and a comparison of V2 of the 400 DO vs 300 f/2.8.

Overall, in my mind at least, this would not be a discussion as to whether or not this is a good or bad lens. It is almost certainly a good lens. It is more a discussion of this lens in comparison to everything else that is out there (400 f/5.6, 300 f/2.8, 100-400 v2, etc), what best fits your needs, and then also making sure there is not an issue with this particular copy.