Turbodog

GH4 wired remote focus
I know this is an old post, but the remote port has 2 functions coming in: FOCUS and REC. My question is, can you reassign the focus to something else? I'm using a B4 lens via adapter so FOCUS is not used. I'm wondering if I can assign FOC…

Comment by Turbodog January 2015 permalink
Camera with lowest rolling shutter for Helicopter films
I routinely use 1/50 second on the GH2/GH3 and Canon DSLRs and jello is totally visible. Shooting with slower shutter speeds does not solve it at all.

Comment by Turbodog July 2013 permalink
Personal View Members local meetings
I am in Chicago. What is the purpose of these local meetings? My spare time is very hard to come by so please be as specific as possible. Thank you.

Comment by Turbodog June 2013 permalink
B4 lenses and mounting solutions
I don't think that the tripod mount from funkykoval2001 adapter looks as strong as the one from ciecio7. I have the ciecio7 mount in stock and will sell for $275 shipped within the U.S. If anyone is interested send me a PM.

Comment by Turbodog April 2012 permalink
B4 lenses and mounting solutions
@DirkVoorhoeve I did try the B4 to Canon adapter & was not satisfied with it. It does replace the mount on your Canon camera however I had trouble getting the mount off my 60D. You would have to buy a dedicated camera and just leave the B4 mount…

Comment by Turbodog April 2012 permalink
B4 lenses and mounting solutions
Yes I have a number of them, plus the MFT adapters -- something I buy and sell. They were for SD video cameras but it is professional grade glass that still holds up quite well. With fixed aperture, parfocal zoom (stays in focus across the whole zoo…

Comment by Turbodog January 2012 permalink
B4 lenses and mounting solutions
@balazer Yeah, that's me... my cover's been blown!! :-)

Comment by Turbodog January 2012 permalink
B4 lenses and mounting solutions
@ed_lee83 That's exactly what I was looking for. Same supplier as the MFT one. Thanks.

Comment by Turbodog January 2012 permalink
B4 lenses and mounting solutions
@ed_lee83 OK I thought we were discussing B4 2/3" lenses. The ones I've tested, Fujinon, Canon, Nikon, all look milky at f/1.7 in the ETC mode. I'm not sure what the deal is because they were obviously intended to be usable wide open …

Comment by Turbodog January 2012 permalink
B4 lenses and mounting solutions
@ed_lee83 No, I'm using the $300 Polish adapter on the GH2. The $800 one is to spread the image across the Canon APS-C sensor and even then you still need to engage the 2x adapter. I don't think it's even for sale to the public yet. …

Comment by Turbodog January 2012 permalink
Powering GH2
Yeah I got it working too using the 5v/9v/12v battery But I have 3 of these 8.4v batteries and 8.4v just isn't enough voltage to fool the camera. I was wondering if there was any way around that, or if it could be used with the GH1. Can't …

Comment by Turbodog January 2012 permalink
B4 lenses and mounting solutions
@ed_lee83 "The GH2 plus its Ex Tele function is simply the best cam to use with these broadcast zooms" 2.6x crop means 2.6x more visible noise and 2.6x deeper depth of field. It's very washed out and milky wide open in Ex Tele mode. I…

Comment by Turbodog January 2012 permalink
B4 lenses and mounting solutions
qwerty123 January 3 "Anybody tried the jinfinance b4 to micro 4/3 adapter? Feedback / thoughts?" Yes I ordered some. The notch is not at the top where it's supposed to be but at an angle. It's fine for lenses without a zoom serv…

Comment by Turbodog January 2012 permalink
1080/60p for the AF101?
ahbleza, 1080 60p is not a standard recording setting but can be achieved by running in 30p with a 60p frame rate, or "overcrank" which will record a slow motion clip without sound. It can then be sped up in post back to real time, creatin…

Comment by Turbodog January 2012 permalink
Powering GH2
I'm glad I found this thread. I bought some of the Chinese 5v/9v/12v batteries to power B4 video lenses with a 12v to Hirose 12-pin cable. I was afraid that 9v would damage the GH2 so instead I bought this 6400Mah battery to power the GH2: htt…

Comment by Turbodog January 2012 permalink
Powering GH2
neveraholiday, check the voltage at the end of your cable. Maybe you have a bad connection.

Comment by Turbodog January 2012 permalink
25mm lens on 2x crop sensor identical to a 50mm lens on FF?
balazer, (and everyone) You are confusing two completely DIFFERENT things: Depth of Field, and Perspective. DEPTH OF FIELD is what is defined by the entrance pupil, NOT Perspective. Perspective is the way in which objects appear to the eye based o…

Comment by Turbodog November 2011 permalink

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Username: Turbodog
Joined: June 2011
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Last Active: January 2015
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Turbodog

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