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30fps - use case?

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Post Options Post Options   Quote dCap Quote  Post ReplyReply Direct Link To This Post Topic: 30fps - use case?
    Posted: 03 February 2021 at 22:27
Is there a specific topic that will benefit from shooting at 30fps?

Many many years ago I had the Nikon D2H (11fps) and have shot stoats and weasels - small fast moving things between the size of a mouse and a squirrel. They are crazy fast. I had better luck dialing my D2H down to just 5fps. At the time, the D2H had 'the fastest shutter release response' of any camera. But I found MY reactions were the limiting factor here. I would fire too late. I've seen Panasonic have their 8K photo mode which records images BEFORE you press the shutter button. But I don't think Sony mentioned that in the a1 press release video? Does it record pre-release images?

I've also been to a falconry display which had the Perignon Falcon fly over head (but we weren't allowed to stand up 'for obvious reasons') and I cannot remember the camera I had at the time. I shot some Owls in flight I think, but this was a decade or more ago.

Not knocking the new a1 - looks lovely - but I'm not after that many pixels, that many fps, or that sort of price tag. I'm asking from the cheap seats.

What subject are people wanting to shoot at 30fps. I've seen complaint that some of the 50mm lenses don't shoot at 30fps. So, again, what sort of thing are you looking to shoot at 30fps with a 50mm lens? A car from another car is all I can think of, but I'd be shooting slow shutter speeds for motion I think. I'm foxed!
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QuietOC View Drop Down
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Post Options Post Options   Quote QuietOC Quote  Post ReplyReply Direct Link To This Post Posted: 03 February 2021 at 22:36
I used 12 FPS on the A65 and A77II a few times for motorsports. I did try a 35mm prime once--I wouldn't recommend it.

Most E-mount lenses don't support 30 FPS on the A1. Only the 23 most recent Sony lenses support it. Many consider these the best lenses for the system though, so maybe it is enough.

Sony updated 6 A-mount SSM lenses to II versions to improve tracking performance. It is a bit odd that they haven't updated a single older FE lens. They did update some FE lens firmware to add support for 20 FPS tracking back when the A9 was released and at least one of those supports 30 FPS--the FE 70-200 GM which is arguably the most important one.

Edited by QuietOC - 03 February 2021 at 22:53
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Post Options Post Options   Quote gigo Quote  Post ReplyReply Direct Link To This Post Posted: 03 February 2021 at 22:51
ILCE-1, FE:24/35/STF/135/10400GM, 90M/24105/200600G+6, 1.4x/2xTC
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Post Options Post Options   Quote gigo Quote  Post ReplyReply Direct Link To This Post Posted: 03 February 2021 at 22:56
ILCE-1, FE:24/35/STF/135/10400GM, 90M/24105/200600G+6, 1.4x/2xTC
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Post Options Post Options   Quote gigo Quote  Post ReplyReply Direct Link To This Post Posted: 03 February 2021 at 23:00
In the situation of these photographs, the subject barely enters the frame at 10 fps, and rarely just meets at 20 fps. Even at 30fps, it will not be possible to capture it stably with the camera.
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Post Options Post Options   Quote dCap Quote  Post ReplyReply Direct Link To This Post Posted: 03 February 2021 at 23:04
Interesting examples.

With the planes (since you cannot possibly pan both!!) you're unlikely to nail either in acceptably 'frozen'. Since you'll need a higher shutter speed then this example. Very nice timing though!

The pitcher shot is focused on the sand behind the action, so the 30fps isn't gonna fix that.
Walk out if it doesn't feel right
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Post Options Post Options   Quote gigo Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2021 at 01:25
ILCE-1, FE:24/35/STF/135/10400GM, 90M/24105/200600G+6, 1.4x/2xTC
ILCE-QX1, Full Sprctrum NEX-5R, E:2
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Post Options Post Options   Quote gigo Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2021 at 01:46
ILCE-1, FE:24/35/STF/135/10400GM, 90M/24105/200600G+6, 1.4x/2xTC
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Post Options Post Options   Quote gigo Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2021 at 02:00
IMHO:The AF calculation of 120 times / second is just a passing point.
I have only a short, 50 years of experience, so I still don't know what equipment I need and what I don't need.
New equipment is always bringing new subjects.

I also expect to cut out still images from 4K120 Frame / s videos.
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Post Options Post Options   Quote gigo Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2021 at 02:09
Originally posted by QuietOC QuietOC wrote:

FE 70-200 GM which is arguably the most important one.

The 70200GM was praised for its speed at the time of its debut, but now it doesn't feel that fast.
The 100400GM developed for the α9 is the best, and the 200600G drops a little.
I will sell the α9 and 70200GM for the funds of the α1.
I wouldn't be surprised if the 70200GMII came out for the α1.
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Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2021 at 11:37
Originally posted by gigo gigo wrote:

https://farm66.static.flickr.com/65535/48317284096_e916e0f1e4_b.jpg

Can't see an image or a link here unless I delete the '[IMG]'. Though to be fair my work PC disables these links anyway ...
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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2021 at 11:46
There is a baseball picture that shows up just fine on my computer
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Post Options Post Options   Quote gigo Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2021 at 14:17
Originally posted by Miranda F Miranda F wrote:

Originally posted by gigo gigo wrote:

https://farm66.static.flickr.com/65535/48317284096_e916e0f1e4_b.jpg

Can't see an image or a link here unless I delete the '[IMG]'. Though to be fair my work PC disables these links anyway ...

This is because flickr's load distribution mechanism is not working well.
https://farm66.static.flickr.com/
Try replacing this with a flickr server name that you can access in your environment.
For example,
https://farm ??.static.flickr.com/
?? = 66..67 ..68 ..
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Post Options Post Options   Quote dCap Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2021 at 14:57
I'm seeing 4 images (planes, baseball, moths, horses).
And some that would benefit from a fast shutter speed rather than more frames per burst.

So, the 30fps is a 'sports' thing in the main?
The delayed (and to be delayed again) Olympics being the sync for this camera (with 5G connection etc.).
Isn't that the position of the A9II though?
As ever when a new model appears (not an update) it will best some of the other models features.
Are there things the A9II still does better than the A1?

Aware that there were many other features in the A1.
Even the timing of the planes passing each other might benefit from a Panasonic pre-release feature as much as 30fps.

I was just trying to understand that complaint that 30fps isn't available on some 50mm lenses
... because you want to shoot 30fps with a 50mm (for what subject?)
Walk out if it doesn't feel right
I can tell you're only lying
If you've got something better tonight
Then don't mess up my mind with your crying
Just Walk Out In The Rain
Eric Clapton, 1978
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