300 f/4 AF-S with 1.7x TC, AF performance on D300 ?

Started Nov 9, 2012 | Discussions thread
Keith Aitken
Veteran MemberPosts: 6,564
Like?
Re: 300 f/4 AF-S with 1.7x TC, AF performance on D300 ?
In reply to monographix, Nov 9, 2012

You did not mention a budget . . .

There are airshow and sport lens alternatives, but more expensive - ( think 200-400 f/4 )

The 1.7x is a good TC as long as you accept the drawbacks, and as long as you really, really need that extra 90mm ( over the 1.4x ).  The 1.7 drawbacks are that in using it with the 300 f/4, you go immediately to f/6.3 and for best IQ with this TC, you should stop down further, limiting your shutter speed or creating a need for higher ISO, unless you are in excellent light. Fortunately, the 300 f/4 is one of Nikon's finest, so it manages to do the best it can with TCs.

Generally, I find that cropping a 300 f/4 + 1.4x image works out as well as using a straight 300 f/4 + 1.7 image, taking into account better AF, higher IQ and faster shutter. With the 1.4, you have more accurate AF, wider aperture and potentially sharper pics because you are shooting at a slightly shorter FL, resulting in less camera shake if you are handholding. The 1.7 introduces the necessity of a monopod/tripod for best results, though handholding is still feasible.

When you have a spare few hours, do a lot of searching here at dp - there has been a huge amount of opinion and user experience re the 300 f/4 plus TCs . . . I am not completely anti-1.7x but it is a compromise piece of equipment, although there are users here who take wonderful pics - look around.

We have all been seduced by the temptations of longer and longer range shooting, but it is harder work to coax good images from the 1.7x

Good luck,

Keith

-- hide signature --

. . .

Reply   Reply with quote   Complain
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark post MMy threads
Color scheme? Blue / Yellow