Sony Alpha 1, SEL 200-600 or Canon R5, RF 100-500

Started 3 months ago | Discussions thread
adk38 Senior Member • Posts: 1,506
Re: Sony Alpha 1, SEL 200-600 or Canon R5, RF 100-500
2

MyDog Is Incharge wrote:

adk38 wrote:

duncang wrote:

MILC man wrote:

duncang wrote:

- no animal/bird eye af in video ?!

the vast majority of camera owners do not need that functionality.

the much bigger problem is that the rf100-500 is not parfocal, which makes it a weak choice for shooting video, see the blurry crops here, and also the focus breathing at 500mm:

"While it can be an individual lens-specific attribute, the review lens does not exhibit parfocal-like behavior. Though it attempts to adjust the focus distance to be appropriate for the selected focal length, focusing at the long end and zooming to the wide end does not result in precise focus. If you adjust the focal length, re-establish focus as suggested by these 100% crops focused at 500mm."
https://www.the-digital-picture.com/Reviews/Canon-RF-100-500mm-F4.5-7.1-L-IS-USM-Lens.aspx

the fe200-600 has better parfocal characteristics, which makes it better for shooting video, and for stills it's rated at 30fps af-c on the a1, while no none knows how canon lenses perform at 30fps.

"This lens(fe200-600) has focus breathing very nicely under control. Subjects in the frame go in and out of focus, but the framing remains quite consistent in appearance." Sony FE 200-600mm f/5.6-6.3 G OSS Lens Review (the-digital-picture.com)

So they make a $6k top of the line camera that does 8K video, they make 600f4 prime and 200-600 wildlife lens that apparently is better for video and leave the decent video stabilisation and animal af tracking functionality out.

I have an a6600 and an a9. Both will track what I decide as long as I can have it in the frame and distance is reasonable. (Subject can even jump out of the frame and if it's back in a sec or two AF still sticks). Photo or video. Cannot imagine the A1 is worse?

They track the wing or closest part of the subject. They cannot track the eye during video.

I shoot mainly birds too far away. Eye focus is least of my worries. For sitting birds and close birds eye AF is surely brilliant and R5 with 100-500 a match in heaven

If you look at this topicyou will notice the A1 is quite capable regarding bird in flight eye AF

Here's a recent cropped picture. While not having bird eye AF I find the eye was in decent focus for the 1200 pictures I got of the osprey that day

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