Nikon 200-400 f4 testing

Started Jun 17, 2013 | Discussions thread
Ian Stuart Forsyth
Senior MemberPosts: 1,678Gear list
Like?
Re: Nikon 200-400 f4 testing
In reply to AlexandreH, Jun 17, 2013

I find with the 200-400 there is a shift in the point of focus going from closer than 10m to further out. Example @ 400mm 5m away F4 I need a correction of +10 but beyond the 10m mark I need no correction.

This is amplified when I use the 1.7 con. I need a correction of +20 while also having +10m global correction. Beyond 10 meters all I need is the +10

This shot was taken with the 1.7 con at 650mm with the FC used I was able to capture very satisfactory detail wide open at 30mm

At some time I will upload some photos take at 300m with the combo testing my FC

-- hide signature --

The Camera is only a tool, photography is deciding how to use it.
The hardest part about capturing wildlife is not the photographing portion; it’s getting them to sign a model release
http://www.flickr.com/photos/isfphotography/
http://isfphotography.smugmug.com/
http://isfphotography.com/

 Ian Stuart Forsyth's gear list:Ian Stuart Forsyth's gear list
Pentax *ist DS Pentax K10D Pentax K20D Pentax K-7 Pentax K-5 +17 more
Reply   Reply with quote   Complain
Post (hide subjects)Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark post MMy threads
Color scheme? Blue / Yellow