HD Go Pro Pre Order - Motorsports Package - 1080p

[Baysailor]

Originally Posted by Randy Chase

With that said, I will now back out of this thread since it competes with my company.

If by competes you mean like a Miata competes with a Rossion, then yes. (both great cars, but....)

[robains]

I'll wait for someone to post their racing/track video with one of these -- price is awesome for HD, if it works.

Rob

[jbs]

Originally Posted by Randy Chase

It is not image stabilization. It is called a rolling shutter effect from a slower shutter speed on the CMOS imager not being able to keep up. GoPro seems to have improved this problem on their non-HD camera, it is much better than it used to be.

It is not really bad, but it still exists to some extent in the new product. We have samples of the video that were done at a recent race. With that said, I will now back out of this thread since it competes with my company.

hm it looks as if the new HD GoPro Camera still suffered from the same rolling shutter effect:

Fastforward to 2:23 in this video :

YouTube - GoPro HD Hero Preview

[robains]

Here is a good comparison of CCD vs. CMOS.

YouTube - CMOS Vs CCD Rolling Shutter Effect + Jello Effect Kawasaki ZX-11

Think I'll stay with CCD for now.

Rob

[Randy Chase]

Well..one more time.

CMOS vs CCD is not that cut and dried. There are some advantages to CMOS and a lot depends on the sensor being chosen and implementation. There are some general things such as low light ability (+CCD), flaring from glare (-CCD), shutter speed issues (-CMOS), ability to handle wide dynamic range in light levels (+CMOS).

CMOS will tend to look "softer" and the colors more muted compared to CCD. I feel this is a bit subjective, some people use the term "filmlike."

I am working with a few different sensors on a new generation product and trust me that CMOS is not a bad choice. There are other variables and a huge part is the actual sensor being used.

[cudacharlie]

Originally Posted by robains

Here is a good comparison of CCD vs. CMOS.

Think I'll stay with CCD for now.

Rob

Yeah, but the camera's not mounted solidly in the right-hand video, whereas the camera used to record the left-hand video is tightly mounted. Poor comparison.

[robains]

How are you able to determine that unless you know the individual doing the comparison? I doubt he would not be using a solid mount in both situations since most camcorders provide a standard thread hole.

Here is another example of rolling shutter on a SOLID mount surface using a more expensive CMOS camera Canon HV20 ($1300) -- it's not the mount, it's the CMOS.
Rolling Shutter HV20 test 24p wobbling on Vimeo

Here is the Canon HF100 ($1800) another CMOS.
Canon HF-100 CMOS/OIS on Vimeo

There are algorithms used to "rebuild" the image for CMOS. The problem is the CMOS scans across a frame either vertically or horizontally rather than taking a snapshot at a single point in time. This is not necessarily a bad approach so long as the scan rate is sufficiently fast enough and the resolution is not too high -- but increase the scan rate and resolution is not trivial (read expensive).

An important difference between the focal plane shutter and the CMOS sensor shutter is the speed of the curtain. The speed of the curtain for a CMOS sensor is limited by the read speed of the A/D converters and the number of pixels that must be read. Unfortunately, as the resolution goes up, the A/D has more to do for each column (more pixels) and the curtain moves slower. Thus, for 3.3 mega pixel sensors, with 1200 columns and with A/D speeds of 50ns, the transit time for each curtain would be 165ms, quite slow for a hand held camera.
For normally lit images, this might be noticed as an aberration where movement of the camera causes distortion of the image in the form of either a wave or elongation of the object.

So 165ms assuming 24 fps -- you can start to see the problem, 29.97 fps, 30 fps, 60 fps and you can really start to see the problem (hence why the Hero HD drops fps at 1080p). I'm not sure what Randy has up his sleeve, but it'll be interesting finding out.

Rob.

[Ingarh]

Her is one clip motorsport, with GoPro HD wide. I think this in 120 degrees.

YouTube - GoPro HD Motorsports HERO: Formula Car Clip

Great sound and pictures.....

[robains]

Yeah, that looks better, still can see some rolling shutter but not too bad at all for the price. Audio is great, they did a wonderful job at removing wind noise.

But looks like that footage was not recorded in 1080.

[Jermaine@VF]

Here are a few sample videos. I am in love with the GT3 Cup Car video.

GoPro HD HERO®: Pre-Production Test Footage

[hatchy]

shipping yet?

[Jermaine@VF]

Originally Posted by hatchy

shipping yet?

Apparently the wild weather on the ocean has added a bit of a delay to delivery date originally posted.

[BealeAss]

Any still available?

[Jermaine@VF]

Yes we do. finally got a ship date while at sema. They will ship to me on the 16th.

[BealeAss]

Originally Posted by Jermaine@VF

Yes we do. finally got a ship date while at sema. They will ship to me on the 16th.

I'm down for one.

[Jermaine@VF]

I have to say I am absolutely blown away by the HD Gopro. I was able to hang out at the booth for a bit and speak with my rep while watching some of the new footage they have captured with them in he testing stage. We were watching them on 45 to 50 inch screens and it looked absolutely bad ass. It is pretty amazing for $299.

[Jermaine@VF]

Camera's are scheduled for delivery on the 20th. I can't wait!

Thanks,

Jermaine~

[robains]

Please do post some track video for us in 1080. Would like to see the results.

Rob.

[BealeAss]

I Can't wait to bolt this into the car and onto my snowboard and surfboard. Should make for some fun.

[Jermaine@VF]

Originally Posted by BealeAss

I Can't wait to bolt this into the car and onto my snowboard and surfboard. Should make for some fun.

I wish I had mine on when I crashed my bike. I now will have the camera rolling every second i'm on the track.