Canon EF 400mm f/5.6L USM

what kinda shutter speed does hand holding this fella require in gloomy ireland? love the images on here by the way

Here's a very flighty swallowtail butterfly at about 4 metres.

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Wow! Thats a beautiful shot of the swallowtail. I'm now financially ready to pull the trigger on this lens or the 300/4 IS. My main concern is maximum magnification. Did you use extension tubes to achieve this shot or is this the native .12x maximum magnification?

WOW how is that done?

Killdeer
7D with 400 f/5.6L
Av Mode ISO 1/640 sec f/5.6 spot metering

Just the lens, hand held at f5.6, 1/1600 ISO 640, spot metering on a 50D, then cropped in photoshop.

Awesome pic in front of alcatraz!

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Yippee! I can join the club now

I just rented the 300/4IS and so far I'm very happy I went with the 400/5.6 instead.

Kolea (golden plover). Handheld.

IMAGE LINK: http://www.flickr.com/​photos/cyanea_gw/62223​29458/

JonK wrote in post #13222607
Magical Fence

The one that induces winter? . Liked the theme of this one, Jon.

I finally got my first real chance to shoot with my new TC (Kenko 1.4x Pro 300 DGX) with the 400 f/5.6. While a few of you have already shared your findings, thought I will share mine too with some shots. I deliberately chose this time of the day as I wanted to test for low light conditions. These were taken handheld under at sunset, so my shots were a mixed bag of spot-on (50-60%) & missed focus (10-20%) and motion-blurred ones (20-30%). I did not have my Better Beamer & Speedlite, else the motion-blurred ones could have been reduced with higher shutter speeds. But overall, I found the 400+TC combination very useable, even though there is a minor penalty on IQ.

1. AF is retained even though the TC reports f/8 to the camera. As the light starts fading away, it works hit and miss as you will see below. Also AF works not just the center-point but also any other point I chose in manual single-focus point mode. Here the players with the bat were where I had the focus point and was shooting AI Servo with high speed continuous.

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Thanks Nik

Here is a crazy goose

IMAGE LINK: http://www.flickr.com …/67031861@N08/6​221092976/