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View Full Version : Some birds of prey with the 75-300 (not CAF)


brian1208
4th December 2012, 08:10 PM
A pretty meagre crop of images today, partly because I was experiementing but mainly because of difficult light and the fact I was shooting in JPG. There's been a fair bit of PP but hopefully these cropped, resized and "Photobucketted" images will give an idea of what I was able to get with the 75-300 in SAF + M mode (mostly ISO 800)

(I couldn't get CAF to perform under these conditions but will have another go next Spring when the light is better and contrast maybe stronger)

A Saker Falcon turning over into a stoop to the lure

http://i1130.photobucket.com/albums/m531/oldcanon/EM-5%20HCT/sakerturnover75-300.jpg

Snowy Owl approaching

http://i1130.photobucket.com/albums/m531/oldcanon/EM-5%20HCT/75-300snowy4-12-12.jpg

Snowy Owl wings downbeating

http://i1130.photobucket.com/albums/m531/oldcanon/EM-5%20HCT/75-300snowy4-12-123.jpg

Lanner pre-flight

http://i1130.photobucket.com/albums/m531/oldcanon/EM-5%20HCT/75-300lannerstanding4-12-12.jpg

Lanner Approach

http://i1130.photobucket.com/albums/m531/oldcanon/EM-5%20HCT/75-300lanner4-12-122.jpg


Lanner Fly-by

http://i1130.photobucket.com/albums/m531/oldcanon/EM-5%20HCT/75-300lanner4-12-12.jpg


(I hope you aren't too disappointed Chevvy ;) )

Alpha1
4th December 2012, 08:13 PM
Great shots Brian even with SAF. Fantastic *chr

brian1208
4th December 2012, 08:22 PM
thanks Dave, but they aren't up to my usual standard so I was a little disappointed

Zuiko
4th December 2012, 08:57 PM
Thanks for posting these, Brian, they prove that it is possible for an EM-5 to focus on a bird in flight using SAF. As you say, a fair bit of pp, with noise appearing in some where the shadow detail has been lifted and some appearing to be oversharpened. Not ideal conditions, though, for this tough test and further experimentation will no doubt be required. :)

brian1208
4th December 2012, 09:10 PM
Just to give an idea of the amount of PP, this was the original .jpg of the Saker (at the best time of day for light)

http://i1130.photobucket.com/albums/m531/oldcanon/EM-5%20HCT/75-300sakeroriginal.jpg

As you say John - more experimentation will occur :D

Zuiko
4th December 2012, 11:33 PM
Just to give an idea of the amount of PP, this was the original .jpg of the Saker (at the best time of day for light)

http://i1130.photobucket.com/albums/m531/oldcanon/EM-5%20HCT/75-300sakeroriginal.jpg

As you say John - more experimentation will occur :D

Actually, the speed they move it's a wonder you got anything! :D

brian1208
5th December 2012, 08:33 AM
That's cos "I've got a good camera" *chr

oly_om
5th December 2012, 10:23 AM
Brian - did you try C-AF with the release priority set to 'OFF'?

Andy

brian1208
5th December 2012, 10:33 AM
Not this time Andy but I suspect it wouldn't have helped in this situation as the problem was that the system wasn't able to get a focus lock on the fast moving and relatively small targets so I wasn't even able to take a shot in many cases

I may well give it a go with the "Board Work" though :)

brian1208
5th December 2012, 10:59 AM
just a couple more.

The Saker diving at high speed (probably in excess of 80mph), I could only squeeze 1/640th sec out of the conditions, way too slow, but it does show how SAF can lock on even at this sort of diving, turning speed

http://i1130.photobucket.com/albums/m531/oldcanon/EM-5%20HCT/75-300divingsaker4-12-12.jpg

Larger, slow moving birds such as this Vulture presents no problem for SAF even when moving in front of a confused background

http://i1130.photobucket.com/albums/m531/oldcanon/EM-5%20HCT/75-300vulture4-12-12.jpg

Maczero
7th December 2012, 10:20 PM
Sorry to have come to this thread rather late.

I have been trying for the last couple of days to take BIF pictures using the OM-D.

I have given up on C-AF TR - at least at the range I am shooting birds and in the current wintry light conditions. It can lock on to a car no problem, but can't handle a flying bird. In fact the bird seems to go one way and the focus box the other.

C-AF might work, but I find the tracking difficult. More practice needed. BTW I use a grid (cross hairs) to try to help keep the focus box on the target. Do you?

The most reliable method I have found was S-AF at 9 FPS. Better light and being closer might help the C-AF solution. I am yet to try MF using the focus peaking methodology. It may allow anticipatory pre-focusing and an ambush method of photography (again at 9 FPS).

I have a lot to learn on good technique.

Andrew

brian1208
7th December 2012, 10:41 PM
I use a grid (cross hairs) to try to help keep the focus box on the target. Do you?


Sounds like something I should try but at the moment I just "Eyeball" the bird through the EVF (as I did with my DSLR) and track to keep it more or less mid-frame

Working with SAF+M and 4fps I find that the AF can track even a fast moving Falcon quite well, with the option to give it a little "Tweak" to help focus if needed

Chevvyf1
7th December 2012, 11:24 PM
Brian, not seen these before now :) ... disappointed ? ME ? No way - just gutted you got all these in such poor light - Well captured and Thank You for sharing :)

Alpha1
8th December 2012, 07:13 AM
Great stuff again Brian. *chr

David Morison
8th December 2012, 08:43 AM
Yes, nice shots and having done a fair bit with the E-M5 on this type of subject I am aware of the difficulties. The 75-300mm is a superb lens with excellent definition and superfast AF but the main issue is the initial "lock on" which doesn't always happen before the bird disappears however if the bird is in view for long enough to do this then the S-AF is very accurate with this lens. Never had any success with C-AF though.

David