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First Images and HD Video Footage From iPhone 4
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youtube HD sucks!
i just did a little comparison between the raw file and the youtube video. the youtube video looks like its playing in 360p compared to the raw file. i suggest everyone to do the same comparison. just take a snap shot of the youtube video in full screen, and then take a snapshot of the raw file in full screen. you wont believe the difference. i guess youtube does some sort of compression to the raw video files so that it doesnt take that much space on their servers.
i just did a little comparison between the raw file and the youtube video. the youtube video looks like its playing in 360p compared to the raw file. i suggest everyone to do the same comparison. just take a snap shot of the youtube video in full screen, and then take a snapshot of the raw file in full screen. you wont believe the difference. i guess youtube does some sort of compression to the raw video files so that it doesnt take that much space on their servers.
You GUESS!? Youtube is reencoding and thereby compressing every video that's being uploaded.
There is no stuttering in the video recorded by the phone. Try downloading the video and playing it in quicktime. The stuttering is caused by your machine if you see it.
No impressed
I was hoping to not have to carry my Flip Mino HD after buying this new iPhone but... this video does not impress me at all. My Flip takes crystal clear video outside. The color and focus is horrible in this video. I am waiting to see more video before I buy. Does anyone know if pics still blur easily if there is motion? My kids never seem to stay still long enough to get a good pic with my 3G.
My 3G may have to do for a while.
I was hoping to not have to carry my Flip Mino HD after buying this new iPhone but... this video does not impress me at all. My Flip takes crystal clear video outside. The color and focus is horrible in this video. I am waiting to see more video before I buy. Does anyone know if pics still blur easily if there is motion? My kids never seem to stay still long enough to get a good pic with my 3G.
My 3G may have to do for a while.
Impressive for a freakin phone. The raw video makes a difference. I thought it looked a bit washed out. Probably did not tap to focus. However once he pointed to the house my jaw dropped. Looked really clean. Can't wait to see this thing in low and mid lighting. I think the strong points for the camera are early morning and dusk. Judging from the test video on the Apple store site. I bet indoors looks pretty sweet too.
Sorry, have to disagree. It's operator technique. Even 24fps film requires avoiding certain panning speeds. Shooting 30fps isn't usually jumpy.
Has nothing to do with sensor size other than heat dissipation which is why they limit the frame rate.
I was impressed, except for the overexposure.
I want to see how close it will focus, but guess I have to wait until tomorrow morning when mine gets here.
My panasonic camera has a noticable rolling shutter or "jello-effect" too, even though it cost 1500€ when I bought it a year ago. This is no iPhone specific problem but rather an issue with high definition camera sensors. Even the Red One has a slight rolling shutter.
Still, HD-Phones seem to have greater issues with the rolling shutter effect, so apparently you can't avoid this yet. It sucks but since I only use my phone to shoot private videos, this effect doesn't really bug me.
Still, HD-Phones seem to have greater issues with the rolling shutter effect, so apparently you can't avoid this yet. It sucks but since I only use my phone to shoot private videos, this effect doesn't really bug me.
to be fair, almost all rolling shutter cameras exhibit this (some more than others)
for a phone, the images look pretty crisp!
That's awesome! I never noticed that before. Now I doubt I'll ever be able to avoid noticing it. No idea what a rolling shutter camera is, but I suppose I can turn to google to answer that one.
It's pretty good. I'll post some tomorrow when I get mine. Since I do this stuff for a living with a full size camera on the shoulder.
Soccer Video looks good
The indoor video that someone shot of the soccer game on tv looked promising. My Flip Mino HD has a hard time indoors. the Flip is usualy very grainy indoors but does a great job outside in the sun.
I would love to see some video of actual people...
The indoor video that someone shot of the soccer game on tv looked promising. My Flip Mino HD has a hard time indoors. the Flip is usualy very grainy indoors but does a great job outside in the sun.
I would love to see some video of actual people...
Rolling shutter is what most CMOS type sensors use, as opposed to CCD sensors which have a global shutter.
It has to to with the way the information is read off of the sensor. With a rolling shutter, the information is read line by line, much like you read a page of type in a book. By the time you get to the last line, a certain amount of time has elapsed since you read the first line. This time lag is what causes the vertical leaning effect in the image when panning.
Other artifacts will be partial frame exposure when strobes go off, such as camera flash and police car lights. That problem can be mitigated with software implemented within the camera, or on the pc.
The big attraction to CMOS sensors is their lower power drain and better sensitivity which results in better low light performance.
It's not HD sensors that have this issue, it's CMOS sensor technology vs. CCD sensors.
I took another, here's one of a little rabbit in the front yard with the iPhone 4 HD camera:
http://www.youtube.com/watch?v=2Us-s8ZT-2w
http://www.youtube.com/watch?v=2Us-s8ZT-2w
I'll be taking my iPhone 4 to the World Expo to shoot some video and pictures throughout the trip. I'll be sure to post stuff in the near future!