Camtree G-51 camera mount

RADRACR · 05-18-2012, 08:14 PM

Tested this apparatus for shooting video at the track. Will use Race Render to overlay OBD info. It's designed to be used outside of the car as well but I'm not quite bold enough for that yet.

Canon 7D
10-22mm
24-70mm

Camtree Test A - 24mm @ 1.6x - built-in mic
I think I like 24mm the best. I think the rattling is from the lens rubbing on the bar. Will dampen it next time. Some shaking going on but these roads are pretty bad.

Camtree Test B - 17mm @ 1.6x - external mic
Oddly, the external mic doesn't sound as good.

RADRACR · 05-19-2012, 07:11 PM

added more info

MFGJR · 05-20-2012, 07:23 AM

What's your source for the OBD? My Traqmate/AiM Solo research a while back revealed that you can't get reliable data (e.g., RPM) via the OBD port on recent BMWs. I know one vendor spent a good bit of time trying to make the Solo work on E36/46 M3s with AiM's OBD connection, and failed. In addition, I found a number of forum posts from M3 guys wanting to feed RPM to their Traqmates, and they ultimately had to pick up the signal by splicing into the ECU. I recall that the RPM through the OBD looks accurate at idle, but not at higher RPM.

The OBD connection works on Porsches and other makes, but not on BMWs--unless someone has come up with a new solution...

mfanatic325 · 05-21-2012, 03:05 AM

What a setup! I personally like 17mm the best and would probably use that to record at the track if it were up to me. Good shit!

RADRACR · 05-21-2012, 04:28 PM

Quote:

Originally Posted by MFGJR

What's your source for the OBD? My Traqmate/AiM Solo research a while back revealed that you can't get reliable data (e.g., RPM) via the OBD port on recent BMWs. I know one vendor spent a good bit of time trying to make the Solo work on E36/46 M3s with AiM's OBD connection, and failed. In addition, I found a number of forum posts from M3 guys wanting to feed RPM to their Traqmates, and they ultimately had to pick up the signal by splicing into the ECU. I recall that the RPM through the OBD looks accurate at idle, but not at higher RPM.

The OBD connection works on Porsches and other makes, but not on BMWs--unless someone has come up with a new solution...

I bought this cheapo OBD wifi transmitter and use TrackAddict HD. Played with it that afternoon and RPMs seemed accurate (enough) to me.

MFGJR · 05-21-2012, 08:34 PM

Quote:

Originally Posted by aestheticstorm

I bought this cheapo OBD wifi transmitter and use TrackAddict HD. Played with it that afternoon and RPMs seemed accurate (enough) to me.

Sorry about the high jack--Happy this is working for you. Did you also get an external GPS receiver to bump the phone's GPS sampling rate? I recall reading some reviews of apps like Harry's Lap Timer where the reported lap times were as much as a several seconds off actual times, and that was chalked up to the iPhone's 1Hz sampling rate. 10-20 Hz sampling provides much more accurate results.

Can't wait to see the overlaid video, should be excellent quality. Did you see the short sidebar article in this month's Roundel that mentions the film 24 Hours: One Team. One Target (Nurburgring 24) was filed entirely with an SLR camera?

RADRACR · 05-22-2012, 04:04 PM

Quote:

Originally Posted by MFGJR

Did you also get an external GPS receiver to bump the phone's GPS sampling rate? I recall reading some reviews of apps like Harry's Lap Timer where the reported lap times were as much as a several seconds off actual times, and that was chalked up to the iPhone's 1Hz sampling rate. 10-20 Hz sampling provides much more accurate results.

Thanks for the tip. I'll have to look into that.

mikesantos · 06-27-2014, 02:13 AM

I like it....Its always a fun shooting with G-51...I love it....

jdoublehcubed · 06-27-2014, 07:53 AM

that device is crazzzzyyy. how much?

i can imagine mounting it on the hood with like a 400mm lens attached. i have no idea what that would be useful for, but it would look hilarious. and you could probably make up all sort of entertaining explanations when people ask.

RADRACR · 06-27-2014, 10:23 AM

lol. Zombie thread.

I sold this long ago. In hindsight, what do you need this setup for when there's go-pro? The flexibility of focal lengths is neat, but it's way overkill haha.

3002 tii · 07-04-2014, 10:38 PM

Quote:

Originally Posted by aestheticstorm

lol. Zombie thread.

I sold this long ago. In hindsight, what do you need this setup for when there's go-pro? The flexibility of focal lengths is neat, but it's way overkill haha.

Gotta say my gopro captures better angle and still gets the job done. Plus overlay is a breeze since the gopro connects to my acquisition data app on my iphone

05-18-2012, 08:14 PM	#1
RADRACR Captain 84 Rep 924 Posts Drives: '08 Z4 M Coupé // '09 X5 d Join Date: Apr 2010 Location: Sioux Falls, South Dakota iTrader: (2)	Camtree G-51 camera mount Tested this apparatus for shooting video at the track. Will use Race Render to overlay OBD info. It's designed to be used outside of the car as well but I'm not quite bold enough for that yet. Canon 7D 10-22mm 24-70mm Camtree Test A - 24mm @ 1.6x - built-in mic I think I like 24mm the best. I think the rattling is from the lens rubbing on the bar. Will dampen it next time. Some shaking going on but these roads are pretty bad. Camtree Test B - 17mm @ 1.6x - external mic Oddly, the external mic doesn't sound as good. __________________ '08 Z4 ///M Coupé (#1765/1815) — 1 of 68 Sepang Bronze / Black Nappa / Madeira Wood / 1 of 1 this combo 19" Advan RS / AP Racing / Bridgestone RE-11 / Autosolutions SSK / R.E. Diablo / R.E. trans mounts '09 X5 35d — Space Grey / Saddle Brown 20" Forgestar F14 / SCR Delete Last edited by RADRACR; 05-19-2012 at 07:20 PM..
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05-19-2012, 07:11 PM	#2
RADRACR Captain 84 Rep 924 Posts Drives: '08 Z4 M Coupé // '09 X5 d Join Date: Apr 2010 Location: Sioux Falls, South Dakota iTrader: (2)	added more info __________________ '08 Z4 ///M Coupé (#1765/1815) — 1 of 68 Sepang Bronze / Black Nappa / Madeira Wood / 1 of 1 this combo 19" Advan RS / AP Racing / Bridgestone RE-11 / Autosolutions SSK / R.E. Diablo / R.E. trans mounts '09 X5 35d — Space Grey / Saddle Brown 20" Forgestar F14 / SCR Delete
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05-20-2012, 07:23 AM	#3
MFGJR First Lieutenant 27 Rep 341 Posts Drives: 2007 Z4 M Coupe Join Date: Sep 2008 Location: Richmond, VA iTrader: (0)	What's your source for the OBD? My Traqmate/AiM Solo research a while back revealed that you can't get reliable data (e.g., RPM) via the OBD port on recent BMWs. I know one vendor spent a good bit of time trying to make the Solo work on E36/46 M3s with AiM's OBD connection, and failed. In addition, I found a number of forum posts from M3 guys wanting to feed RPM to their Traqmates, and they ultimately had to pick up the signal by splicing into the ECU. I recall that the RPM through the OBD looks accurate at idle, but not at higher RPM. The OBD connection works on Porsches and other makes, but not on BMWs--unless someone has come up with a new solution... __________________
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05-21-2012, 03:05 AM	#4
mfanatic325 ///M-fanatic 193 Rep 3,885 Posts Drives: '01 911 Turbo Join Date: Oct 2007 Location: Cupertino, CA. iTrader: (23)	What a setup! I personally like 17mm the best and would probably use that to record at the track if it were up to me. Good shit!
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06-27-2014, 02:13 AM	#8
mikesantos Registered 0 Rep 1 Posts Drives: Maserati Join Date: Jun 2014 Location: Vienna iTrader: (0)	CAMTREE Gripper G-51 Campod Suction Car Mount - Always a fun I like it....Its always a fun shooting with G-51...I love it....
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06-27-2014, 07:53 AM	#9
jdoublehcubed Mechanical Engineer 96 Rep 1,025 Posts Drives: 2006 Z4MR, Imola Red Join Date: Jul 2012 Location: Anaheim, CA iTrader: (1)	that device is crazzzzyyy. how much? i can imagine mounting it on the hood with like a 400mm lens attached. i have no idea what that would be useful for, but it would look hilarious. and you could probably make up all sort of entertaining explanations when people ask.
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06-27-2014, 10:23 AM	#10
RADRACR Captain 84 Rep 924 Posts Drives: '08 Z4 M Coupé // '09 X5 d Join Date: Apr 2010 Location: Sioux Falls, South Dakota iTrader: (2)	lol. Zombie thread. I sold this long ago. In hindsight, what do you need this setup for when there's go-pro? The flexibility of focal lengths is neat, but it's way overkill haha. __________________ '08 Z4 ///M Coupé (#1765/1815) — 1 of 68 Sepang Bronze / Black Nappa / Madeira Wood / 1 of 1 this combo 19" Advan RS / AP Racing / Bridgestone RE-11 / Autosolutions SSK / R.E. Diablo / R.E. trans mounts '09 X5 35d — Space Grey / Saddle Brown 20" Forgestar F14 / SCR Delete
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