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RobG · 12-11-2010, 02:44 AM

I took some video of Googong Dam here in Australia, since the water is over the spillway for the first time in my memory. I'll have to be careful in future to check the histogram in situations like this - the water reflects so much light that the highlights are blown out.

You Tube

vievetrick · 12-11-2010, 07:13 AM

Is this shot on a tripod?

**blackcloudbrew** · 12-11-2010, 07:49 AM

I guess I have to admit that I love dams. Nice video clip! You've captured the power of this very well.

Daniel_r · 12-11-2010, 07:55 AM

Good clip, even with the blowout.

RobG · 12-11-2010, 05:07 PM

Originally posted by vievetrick

Is this shot on a tripod?

Absolutely. Unless you're using a wide angle lens at a reasonable aperture, I would always recommend using a tripod with the K7 in video mode.

RobG · 12-11-2010, 05:12 PM

Originally posted by blackcloudbrew

I guess I have to admit that I love dams. Nice video clip! You've captured the power of this very well.

Thanks! I wish I could have got closer, but the road to the base of the dam was closed.

Originally posted by Daniel_r

Good clip, even with the blowout.

Thank you! I'll have to watch out for situations like this and look at the histogram on a still shot. It doesn't seem to be possible to get a histogram from video (which makes sense due to the processing required). Trouble is, I suspect that the dynamic range in still image mode is wider than in video mode. Now if I could just find my father's monopod...

Aussieflicker · 12-12-2010, 03:53 AM

Bit off topic, but Does the K7 autofocus in video mode?

Steve.Ledger · 12-12-2010, 04:24 AM

No AF in video mode..
For long shots using a 250mm lens I set on infinity before shooting, this lets me zoom in/out a far amount without loosing focus.
I've used this method at motor sports, hand held - some wobble but eyes on on the cars.

Good video Rob, very steady. We have Tinaroo Dam near here, the rate this early wet season is going, I may have similar shots to come...

RobG · 12-12-2010, 04:57 AM

Originally posted by Aussieflicker

Bit off topic, but Does the K7 autofocus in video mode?

It depends on what you mean. You can use AF before you start the camera recording, but while recording, you can't. So there's no access to continuous focus like you would expect on a dedicated camcorder.

You can of course stop the recording, refocus then start recording again. But if you are trying to track something which is moving, you have o do it manually. That's made harder by the necessity of using the live view since the mirror is up. Here is where a micro 4/3 camera would have an advantage since there's no mirror and the viewfinder is electronic.

RobG · 12-12-2010, 05:02 AM

Originally posted by sledger

For long shots using a 250mm lens I set on infinity before shooting, this lets me zoom in/out a far amount without loosing focus.
I've used this method at motor sports, hand held - some wobble but eyes on on the cars.

I tried briefly zooming the 55-300 out, but it's so stiff that it's impossible to zoom smoothly.

Quote:

Good video Rob, very steady. We have Tinaroo Dam near here, the rate this early wet season is going, I may have similar shots to come...

Thanks! Hope it doesn't result in a flood downstream - that's what happened here at Queanbeyan.

Steve.Ledger · 12-12-2010, 04:42 PM

Originally posted by RobG

I tried briefly zooming the 55-300 out, but it's so stiff that it's impossible to zoom smoothly.

Run down to the local hardware store and make yourself a follow-focus attachment

[YT]http://www.youtube.com/watch?v=-2hbd35hthI[/YT]

RobG · 12-13-2010, 03:30 AM

Originally posted by sledger

Run down to the local hardware store and make yourself a follow-focus attachment

Interesting idea. I guess more leverage would make smooth zooming easier, but for the zoom mechanism I think you'd need a LOT more leverage than for focus.

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12-11-2010, 07:13 AM	#2
vievetrick Veteran Member Join Date: Sep 2006 Location: Easthampton - Massachusetts - USA Photos: Gallery Posts: 5,183	Is this shot on a tripod?

12-11-2010, 07:49 AM	#3
blackcloudbrew Loyal Site Supporter Join Date: Mar 2009 Location: Cotati, California USA Photos: Gallery \| Albums Posts: 4,461	I guess I have to admit that I love dams. Nice video clip! You've captured the power of this very well.

12-11-2010, 07:55 AM	#4
Daniel_r Senior Member Join Date: Nov 2010 Location: Saskatchewan Posts: 108	Good clip, even with the blowout.

12-11-2010, 05:07 PM	#5
RobG Otis Memorial Pentaxian Join Date: Dec 2009 Location: Canberra Photos: Gallery \| Albums Posts: 8,905 Original Poster	Originally posted by vievetrick Is this shot on a tripod? Absolutely. Unless you're using a wide angle lens at a reasonable aperture, I would always recommend using a tripod with the K7 in video mode.

12-11-2010, 05:12 PM	#6
RobG Otis Memorial Pentaxian Join Date: Dec 2009 Location: Canberra Photos: Gallery \| Albums Posts: 8,905 Original Poster	Originally posted by blackcloudbrew I guess I have to admit that I love dams. Nice video clip! You've captured the power of this very well. Thanks! I wish I could have got closer, but the road to the base of the dam was closed. Originally posted by Daniel_r Good clip, even with the blowout. Thank you! I'll have to watch out for situations like this and look at the histogram on a still shot. It doesn't seem to be possible to get a histogram from video (which makes sense due to the processing required). Trouble is, I suspect that the dynamic range in still image mode is wider than in video mode. Now if I could just find my father's monopod...

12-12-2010, 03:53 AM	#7
Aussieflicker New Member Join Date: May 2010 Location: Melbourne Posts: 16	Bit off topic, but Does the K7 autofocus in video mode?

12-12-2010, 04:24 AM	#8
Steve.Ledger Veteran Member Join Date: Oct 2009 Location: Far North Qld Posts: 3,301	No AF in video mode.. For long shots using a 250mm lens I set on infinity before shooting, this lets me zoom in/out a far amount without loosing focus. I've used this method at motor sports, hand held - some wobble but eyes on on the cars. Good video Rob, very steady. We have Tinaroo Dam near here, the rate this early wet season is going, I may have similar shots to come...

12-12-2010, 04:57 AM	#9
RobG Otis Memorial Pentaxian Join Date: Dec 2009 Location: Canberra Photos: Gallery \| Albums Posts: 8,905 Original Poster	Originally posted by Aussieflicker Bit off topic, but Does the K7 autofocus in video mode? It depends on what you mean. You can use AF before you start the camera recording, but while recording, you can't. So there's no access to continuous focus like you would expect on a dedicated camcorder. You can of course stop the recording, refocus then start recording again. But if you are trying to track something which is moving, you have o do it manually. That's made harder by the necessity of using the live view since the mirror is up. Here is where a micro 4/3 camera would have an advantage since there's no mirror and the viewfinder is electronic.

12-12-2010, 05:02 AM	#10
RobG Otis Memorial Pentaxian Join Date: Dec 2009 Location: Canberra Photos: Gallery \| Albums Posts: 8,905 Original Poster	Originally posted by sledger For long shots using a 250mm lens I set on infinity before shooting, this lets me zoom in/out a far amount without loosing focus. I've used this method at motor sports, hand held - some wobble but eyes on on the cars. I tried briefly zooming the 55-300 out, but it's so stiff that it's impossible to zoom smoothly. Quote: Good video Rob, very steady. We have Tinaroo Dam near here, the rate this early wet season is going, I may have similar shots to come... Thanks! Hope it doesn't result in a flood downstream - that's what happened here at Queanbeyan.

12-12-2010, 04:42 PM	#11
Steve.Ledger Veteran Member Join Date: Oct 2009 Location: Far North Qld Posts: 3,301	Originally posted by RobG I tried briefly zooming the 55-300 out, but it's so stiff that it's impossible to zoom smoothly. Run down to the local hardware store and make yourself a follow-focus attachment [YT]http://www.youtube.com/watch?v=-2hbd35hthI[/YT]

12-13-2010, 03:30 AM	#12
RobG Otis Memorial Pentaxian Join Date: Dec 2009 Location: Canberra Photos: Gallery \| Albums Posts: 8,905 Original Poster	Originally posted by sledger Run down to the local hardware store and make yourself a follow-focus attachment Interesting idea. I guess more leverage would make smooth zooming easier, but for the zoom mechanism I think you'd need a LOT more leverage than for focus.

Googong Dam - K7 clip

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