sony ax100 info

[stefanocps]

yes, sorry, did mean almost ten years but still, no change in lens, framerates and I think IQ. I also think I’m not the only one looking for a light 4k 60p camcorder with a wider lens.

yes it is the same reason why i never buy before a camera.i looked at ax700 for so long..but for the price they still sell it(used) and for the specs for me it is not worthy. That's why when i see the ax100 at 300 euro i said i might try

 

[Doug Jensen]

yes it is the same reason why i never buy before a camera.i looked at ax700 for so long..but for the price they still sell it(used) and for the specs for me it is not worthy. That's why when i see the ax100 at 300 euro i said i might try

My AX700 master class might help you better understand your AX100.

 

[stefanocps]

My AX700 master class might help you better understand your AX100.

ah really?well they are very similar , why you say knowng ax700 can help me with ax100?

 

[Doug Jensen]

ah really?well they are very similar , why you say knowng ax700 can help me with ax100?

Because all of Sony's camcorders (not including the Z190/Z280) have very similar controls and settings. If you understand one, you understand them all. Do you disagree? Do you not see more similarities between the AX100 and AX700 than differences?

 

[stefanocps]

Because all of Sony's camcorders (not including the Z190/Z280) have very similar controls and settings. If you understand one, you understand them all. Do you disagree? Do you not see more similarities between the AX100 and AX700 than differences?

Totally agree!

 

[Ron Evans]

hello i have just got a sony fx100, i bought it used

At first..i am worried about noisy image when panning. When record at 6mbp it is terrible. At 100 no, but it is really evident the rolling shutter (all at 4k)

To ax100 owner..are there any things to do to get the best out of the camera berfore everything? I have always used mirrorless..so camera may need different treatment

Also..i want to understand if these things are nomral or this is a faulty copy

Thanks

The AX100 only shoots 4K at 30P so there is less time for the camera to get information for focus etc. I have found that I get best results from my AX100 shooting 1920x1080 60P XAVC highest bit rate. Also if you are getting rolling shutter you are panning too quick and will not be pleasant for people to watch. The AX100 is a good camcorder with 1" sensor and built in ND with full manual controls that can be selected for semi auto use too which is how I set up for my wife to use. You can always edit in a 30P timeline if you like the slow frame rate look and then encode for a smaller file. I have also upscaled to UHD the 1920x1080 files in Resolve to match the UHD from my GH6 and GH5S and works fine.

 

[Doug Jensen]

The AX100 only shoots 4K at 30P so there is less time for the camera to get information for focus etc. I have found that I get best results from my AX100 shooting 1920x1080 60P XAVC highest bit rate. .

I'm extremely skeptical that the frame rate makes any difference whatsoever to auto-focus performance. Do you have any documentation or side-by-side examples to backup that claim?

 

[Peter C.]

I'm extremely skeptical that the frame rate makes any difference whatsoever to auto-focus performance. Do you have any documentation or side-by-side examples to backup that claim?

I think he is taking what's true about the GH cameras and applying to this camera. I believe the GH focuses tracking works better at higher frame rates. I've seen Jordan and Chris demonstrate this by running towards the camera @24 and @60. I'm guessing the camera would have 3x more samples to react to the subject changing distance and refocus.

https://youtu.be/U5mRGBK8LpM?si=aTDMJEoNhimH8hua&t=1117

 

[Doug Jensen]

That might be true for GH, but Ron mentioned the A100 specifically, so I'd like to hear more about the testing/documentation behind his claim.

BTW, I've never used a GH camera, but as an owner of a S1H, I can tell you that Panasonic AF sucks regardless of the frame-rate, but that isn't the subject of the thread.

 

[Peter C.]

That might be true for GH, but Ron mentioned the A100 specifically, so I'd like to hear more about the testing/documentation behind his claim.

BTW, I've never used a GH camera, but as an owner of a S1H, I can tell you that Panasonic AF sucks regardless of the frame-rate, but that isn't the subject of the thread.

I wasn't saying that it did apply I just had a feeling that was the idea behind it. And yes the op wasn't talking about af.

 

[stefanocps]

I wasn't saying that it did apply I just had a feeling that was the idea behind it. And yes the op wasn't talking about af.

i did n ot talk about af..but it is also something i notice being not so fast. i have a zv1..and is another world, of course ax100 is 10 years older..but i'd expect something little bit better

 

[Ron Evans]

That might be true for GH, but Ron mentioned the A100 specifically, so I'd like to hear more about the testing/documentation behind his claim.

BTW, I've never used a GH camera, but as an owner of a S1H, I can tell you that Panasonic AF sucks regardless of the frame-rate, but that isn't the subject of the thread.

I do not have any technical tests to show , personally always shoot 60P. However in a contrast based focus system the more data points the camera has the better the focus or any measurement really will work. At 60 fps the cameras is getting twice the data input that it would get at 30 fps. Will not make much difference for a still but will for moving objects. As to Panasonic auto focus I agree and why I do not use always manual focus for me. However I think there are several tests online that show a marked difference in performance between 24P and 60P for the GH cameras for continuous AF. Will likely apply to your S1H too.

Back to the OP question. Having used the camera from within a month or so of it being released I have found the best performance to be 60P HD XAVC-S at 50Mbps

 

[stefanocps]

I do not have any technical tests to show , personally always shoot 60P. However in a contrast based focus system the more data points the camera has the better the focus or any measurement really will work. At 60 fps the cameras is getting twice the data input that it would get at 30 fps. Will not make much difference for a still but will for moving objects. As to Panasonic auto focus I agree and why I do not use always manual focus for me. However I think there are several tests online that show a marked difference in performance between 24P and 60P for the GH cameras for continuous AF. Will likely apply to your S1H too.

Back to the OP question. Having used the camera from within a month or so of it being released I have found the best performance to be 60P HD XAVC-S at 50Mbps

Thanks for the info on the.best settings. TO telll the true shooting HD It is not the best i could aim! I export always hd, yes, but shooting 4k allow me.lots of possibilities with cropping.Really undecided if keep this camcorder

 

[Doug Jensen]

I do not have any technical tests to show ,

Exactly my point. YOU don't know because you have never done any real testing to prove or disprove your theory. So, you're offering advice as if it was fact, when it is really just your opinion. Unless you can show some proof of your own, or maybe provide a link to a credible source that backs up your claim, I say it is bullshit (at least for Sony camcorders).

At 60 fps the cameras is getting twice the data input that it would get at 30 fps.

No it isn't. The AF is continuous and not based on refreshing itself between frames like a stills camera. By your logic, then a camera shooting 120 fps or 240 fps ought to provide even better AF performance, right? Which we know is not the case. Actually, if you wanted to argue that shutter speed, rather than frame-rate, makes a difference I would be more inclined to believe it, but even then, I'd be very skeptical unless you could prove it with actual testing.

As the OP says, buying a 4K camera and then using it for HD only -- just to supposedly get better AF performance -- is no solution at all. Why buy a 4K camera if someone can't use it in 4K? Why buy a 24p camcorder and then shoot everything in 60p? It makes no sense.

Personally I don't think there is any AF performance difference between 4K and HD or 24p or 30p or 60p on a Sony camcorder such as the AX100. If you think I'm wrong, I challenge you to prove it.

AF performance is going to be dictated by choosing the most appropriate AF menu settings and then using good shooting techniques. Codecs, frame rates, resolutions, and shutter speed don't matter.

 

[Ron Evans]

Doug you are so full of your own importance I think you should prove to me that the camera is not using data based on frame rate rather than say `No it isn`t `. Clearly the sensor is sampled twice as fast at 60P than at 30P. You explain to me how the information is used by the electronics. To my knowledge there is no separate sensor for autofocus or exposure.

 

[Doug Jensen]

Doug you are so full of your own importance I think you should prove to me that the camera is not using data based on frame rate rather than say `No it isn`t `. Clearly the sensor is sampled twice as fast at 60P than at 30P. You explain to me how the information is used by the electronics. To my knowledge there is no separate sensor for autofocus or exposure.

Hey Ron, is there some reason to make this personal? Why the attack?
I cannot prove the absence of something. YOU said there is a difference and I asked you for credible documentation or examples. You have none. The burden is on you, my friend to prove such outlandish claims. Are you the only person in the world to have discovered how frame-rate on Sony camcorders affects AF?

 

[Ron Evans]

Please read your reply to me and decide if that is appropriate way to respond. Doug I respect your technical knowledge and videos, have bought your products, but not your interpersonal skills. You say I am wrong fine. My technical view is that the camcorders focus based on the electronics sampling the sensor for contrast difference. Focus motors are used to move lens and the next time data is sampled it is compared again. Doesn`t matter whether its a still camera or camcorder, that is how contrast based auto focus works. Before starting to record video the camcorder can sample as fast as it can to get focus but I believe once recording starts the sampling is now fixed to frame rate since I do not believe it is possible to sample the sensor in this price range simultaneous at different rates.Would have to be multiple faster. I believe the only data the electronics have is from the sample it is taking governed by frame rate. So I maintain that at 60P there are twice as many points to correct focus compared to 30P. Same goes for exposure if in automatic. If you can find out from Sony if the camera is actually always sampling at a much higher speed than the frame rate then there may be no difference that of course would be contingent on shutter speed. Doug I am sure you have the Sony contacts to find out and I will accept their response. As an aside shooting at 60P there is not a noticeable difference between auto focus on the Sony camcorders I have ( AX100 and AX53 ) and the GH5S or GH6.

For the OP. For UHD I started with GH5 so that I could get UHD at 60P since at the time the were no reasonably priced camcorders that could do that. Since moved to both GH5S and GH6 but my wife uses the AX100 to shoot closeups on our shoots. Up to that point I was a Sony camcorder guy up to NX5U.

 

[Doug Jensen]

Ron, you're getting caught up in technical details that don't matter at all to me or the OP. I do not care about the underlying method of how a camera calculates and adjusts auto-focus. Fortunately, that is not what the discussion is about. YOU claimed that the camera will focus better at 60p HD than at 30p 4K. I challenged you to prove that by citing a credible source or by uploading some test footage that proves it. You have done neither. Therefore, you have not made your case and are just spreading unsubstantiated rumors.

For the sake of argument, let's just say that your theory about sensor sampling is 100% correct. Okay, the next question is whether it makes any difference or not? If you could demonstrate that AF performs better at faster frame rates and lower resolutions on Sony camcorders then I will gladly eat crow. AF performance is what the discussion is about, not the technology behind it.

 

[Takumarr]

hello i have just got a sony fx100, i bought it used

At first..i am worried about noisy image when panning. When record at 6mbp it is terrible. At 100 no, but it is really evident the rolling shutter (all at 4k)

To ax100 owner..are there any things to do to get the best out of the camera berfore everything? I have always used mirrorless..so camera may need different treatment

Also..i want to understand if these things are nomral or this is a faulty copy

Thanks

Sony ax100 might be a good camera for me, good 1 inch sensor lens and professional xavcs codec. But they are consumercameras and they have a lot of problems, if you make two short films a year, it is different, and if you work with it every day or in the studio, it will probably burn out soon!

 

[stefanocps]

Sony ax100 might be a good camera for me, good 1 inch sensor lens and professional xavcs codec. But they are disposable cameras and they have a lot of problems, if you make two short films a year, it is different, and if you work with it every day or in the studio, it will probably burn out soon!

what you mean disposable camera?these cameras are arounbd since 10 years..they should have disappeared...why you say this?