GL / XM assorted posts, 2003

Joe Sacher · July 12th, 2003, 09:17 AM

I have been able to get this effect, as long as it is coming from the background forward. I set the focus on the background and stay in manual focus. Then I position the camera, such that it will change the focus to the foreground when I turn on auto focus. It is quicker than might be desired, but this is the only way other than manual that I have figured out with the GL2.

Kevin Shilts · July 13th, 2003, 08:37 PM

Doing some nature photography of waterfalls with GL2 and polarizer. Anyone have any suggestions on combination of settings/equipment that has good results in yeilding detail in the white water, i.e. ND filter on/off, f/stop, shutter speed. Thanks!

Joe Sacher · July 13th, 2003, 09:04 PM

Are you doing stills or video? It sounded like stills.

For white water, you can either be fast or slow. Slow shots of water falls can give a cool dreamy effect. I usually use a polarizer on water if it is bright. You desired shutter speed will factor into using ND filters, etc.

Rob Lohman · July 14th, 2003, 06:02 AM

Low shutter speeds will get you that dreamy look, high shutter
speeds give a more crystal clear look where you can see individual
water drops (if you get close enough). Play with the shutter to
see what you get/like/want.

Sam Diego · July 14th, 2003, 12:08 PM

Hi,
I'm bringing my GL2 to College Station, Texas at the end of the month. The temp there is about 90 with humidity (feels like) 98 degrees. I'll be filming outside for several hours than immediately go into an air condition car and/or hotel room. How does want protect the GL2 from this type of weather conditions?

Thanks for any help.
SDiego

Joe Sacher · July 14th, 2003, 02:16 PM

Generally I try to have something that uses enough themal insulation to slow down the cool down. For example, a hard case with foam, if left closed, will slow down the temerature changes. The moving from a hot/humid to a cold/dry enviroment isn't as bad as going from a cold to a hot/humid environment. This is where the condensation forms.

Allen Danze · July 16th, 2003, 09:51 AM

Hi,

I was wondering what brand of head cleaning cassettes people recommend for the gl2, and how often they should be used. I've gone through only about 6 or 7 tapes since i got my gl2, and it only flashed the message that the heads were dirty and needed cleaning once, but then went away. I bought a Panasonic head cleaning tape (dry type), but am hesitant to use it because i don't want to damage the heads if it's not necessary. It says to use only when soiled heads are causing a degraded picture. I haven't been getting dropped frames except for once or twice per tape. Oh and if it makes a difference i use sony premiums.

Thanks,

Allen Danze

Bud Kuenzli · July 16th, 2003, 10:38 AM

I'm not sure why you are getting dropped frames on every tape. that seems odd to me. Combine that with the notice you got and I'd personally go ahead and run the tape cleaner. While it's not a great thing to do more than you need to, they are used commonly and when used in accordance with the directions it won't do anything horrible. I doubt (but am not sure) that one brand of tape cleaner is much better or worse than another. I've never heard anyone say differently. tape cleaners do have to be used carefully. It's important to not run them longer than recommended, and to give 10 sec or so of time before running a second time if you choose to do that, and never rewind a tape cleaner. There. That about exhausts my knowledge of tape cleaners.

Joe Sacher · July 16th, 2003, 11:36 AM

I have heard recommendations, which make sense to me, about using a head cleaner from the same company as the tapes you normally use.

Jason Keene · July 16th, 2003, 10:54 PM

I've used a ZR40 for a year, and my Gl2 for a few months but I've only experienced a dropped frame (on the Gl2) once. Maybe I've been lucky but the description sounds unusual. Once or twice per tape would drive me nuts! I use a Sony head cleaner.

Jack Robertson · July 19th, 2003, 01:10 PM

Hello Brian,

I have been away for a while, but I am very glad you have pointed this feature out. It works like a treat. Thanx for your feedback!

Regards,
Jack

Justin Morgan · July 21st, 2003, 04:08 AM

Is it best to switch off frame mode when footage will later be changed to slow motion in post? Or does it not matter?

Stewart McDonald · July 21st, 2003, 04:24 AM

I'd say its probably best to turn frame mode off because it runs at a lower frame rate, so you won't have as many frames than in normal mode to give you a smoother slow-mo.

I think.

Peter Moore · July 21st, 2003, 11:52 AM

In fact, if your destination footage is 320 x 240, you can get perfect 50% slow motion if you record in interlaced mode because you are acquiring 60 240 line frames per second.

Even in 480 lines though it should be better to be interlaced. You can get perfect 60% slow mo. Your frames would be like this (A, B = fields):

Dest. Frame 1: Source Field 1A, Source Field 1B
Dest. Frame 2: Source Field 1B, Source Field 2A
Dest. Frame 3: Source Field 2A, Source Field 2B
Dest. Frame 4: Source Field 2B, Source Field 3A
Dest. Frame 5: Source Field 3A, Source Field 3B
Dest. Frame 6: Source Field 3B, Source Field 4A
Dest. Frame 7: Source Field 4A, Source Field 4B

etc.

Basically, for slow motion you want as much temporal information as possible, and 60i gives you that.

Alex Knappenberger · July 21st, 2003, 11:56 AM

For slow mo, it's best to use 33% and 66% for NTSC slow motion, since them numbers work the best. :D

With Vegas 4.0 I can slow down to 33% with good results, but you'll notice some quality difference because Vegas has to "make" some extra frames and they aren't as sharp as the originals.

July 13th, 2003, 08:37 PM	#482
Kevin Shilts Tourist Join Date: Jun 2003 Location: United States Posts: 2	Waterfalls Doing some nature photography of waterfalls with GL2 and polarizer. Anyone have any suggestions on combination of settings/equipment that has good results in yeilding detail in the white water, i.e. ND filter on/off, f/stop, shutter speed. Thanks!

July 14th, 2003, 06:02 AM	#484
Rob Lohman RED Code Chef Join Date: Oct 2001 Location: Holland Posts: 12,514	Low shutter speeds will get you that dreamy look, high shutter speeds give a more crystal clear look where you can see individual water drops (if you get close enough). Play with the shutter to see what you get/like/want. __________________ Rob Lohman, visuar@iname.com DV Info Wrangler & RED Code Chef Join the DV Challenge \| Lady X Search DVinfo.net for quick answers \| Buy from the best: DVinfo.net sponsors

July 14th, 2003, 12:08 PM	#485
Sam Diego New Boot Join Date: Mar 2002 Location: Southern California Posts: 9	GL2 in 98 degrees and humidity? Hi, I'm bringing my GL2 to College Station, Texas at the end of the month. The temp there is about 90 with humidity (feels like) 98 degrees. I'll be filming outside for several hours than immediately go into an air condition car and/or hotel room. How does want protect the GL2 from this type of weather conditions? Thanks for any help. SDiego __________________ Sam M

July 16th, 2003, 09:51 AM	#487
Allen Danze New Boot Join Date: May 2003 Location: Arlington, Virginia Posts: 11	Head Cleaning Cassettes Hi, I was wondering what brand of head cleaning cassettes people recommend for the gl2, and how often they should be used. I've gone through only about 6 or 7 tapes since i got my gl2, and it only flashed the message that the heads were dirty and needed cleaning once, but then went away. I bought a Panasonic head cleaning tape (dry type), but am hesitant to use it because i don't want to damage the heads if it's not necessary. It says to use only when soiled heads are causing a degraded picture. I haven't been getting dropped frames except for once or twice per tape. Oh and if it makes a difference i use sony premiums. Thanks, Allen Danze

July 16th, 2003, 10:38 AM	#488
Bud Kuenzli Regular Crew Join Date: Mar 2003 Location: North Pole, Alaska Posts: 197	dropped frames once or twice per tape?? I'm not sure why you are getting dropped frames on every tape. that seems odd to me. Combine that with the notice you got and I'd personally go ahead and run the tape cleaner. While it's not a great thing to do more than you need to, they are used commonly and when used in accordance with the directions it won't do anything horrible. I doubt (but am not sure) that one brand of tape cleaner is much better or worse than another. I've never heard anyone say differently. tape cleaners do have to be used carefully. It's important to not run them longer than recommended, and to give 10 sec or so of time before running a second time if you choose to do that, and never rewind a tape cleaner. There. That about exhausts my knowledge of tape cleaners. __________________ on the Internet, when you get where you're going you still don't know where you are

July 12th, 2003, 09:17 AM	#481
Joe Sacher Regular Crew Join Date: May 2003 Location: Indianapolis, IN Posts: 177	I have been able to get this effect, as long as it is coming from the background forward. I set the focus on the background and stay in manual focus. Then I position the camera, such that it will change the focus to the foreground when I turn on auto focus. It is quicker than might be desired, but this is the only way other than manual that I have figured out with the GL2.

July 13th, 2003, 09:04 PM	#483
Joe Sacher Regular Crew Join Date: May 2003 Location: Indianapolis, IN Posts: 177	Are you doing stills or video? It sounded like stills. For white water, you can either be fast or slow. Slow shots of water falls can give a cool dreamy effect. I usually use a polarizer on water if it is bright. You desired shutter speed will factor into using ND filters, etc.

July 14th, 2003, 02:16 PM	#486
Joe Sacher Regular Crew Join Date: May 2003 Location: Indianapolis, IN Posts: 177	Generally I try to have something that uses enough themal insulation to slow down the cool down. For example, a hard case with foam, if left closed, will slow down the temerature changes. The moving from a hot/humid to a cold/dry enviroment isn't as bad as going from a cold to a hot/humid environment. This is where the condensation forms.

July 16th, 2003, 11:36 AM	#489
Joe Sacher Regular Crew Join Date: May 2003 Location: Indianapolis, IN Posts: 177	I have heard recommendations, which make sense to me, about using a head cleaner from the same company as the tapes you normally use.

July 16th, 2003, 10:54 PM	#490
Jason Keene New Boot Join Date: Jul 2003 Location: Los Angeles, California. U.S.A. Posts: 8	I've used a ZR40 for a year, and my Gl2 for a few months but I've only experienced a dropped frame (on the Gl2) once. Maybe I've been lucky but the description sounds unusual. Once or twice per tape would drive me nuts! I use a Sony head cleaner.

July 19th, 2003, 01:10 PM	#491
Jack Robertson Regular Crew Join Date: Jun 2003 Location: Sydney, Australia Posts: 125	Re: Settings Reset after Power Off Hello Brian, I have been away for a while, but I am very glad you have pointed this feature out. It works like a treat. Thanx for your feedback! Regards, Jack

July 21st, 2003, 04:08 AM	#492
Justin Morgan Regular Crew Join Date: Jan 2002 Location: London Posts: 189	Fram mode off for slow-mo? Is it best to switch off frame mode when footage will later be changed to slow motion in post? Or does it not matter?

July 21st, 2003, 04:24 AM	#493
Stewart McDonald Regular Crew Join Date: Feb 2003 Location: UK Posts: 130	I'd say its probably best to turn frame mode off because it runs at a lower frame rate, so you won't have as many frames than in normal mode to give you a smoother slow-mo. I think.

July 21st, 2003, 11:52 AM	#494
Peter Moore Trustee Join Date: Oct 2002 Location: Arlington VA Posts: 1,034	In fact, if your destination footage is 320 x 240, you can get perfect 50% slow motion if you record in interlaced mode because you are acquiring 60 240 line frames per second. Even in 480 lines though it should be better to be interlaced. You can get perfect 60% slow mo. Your frames would be like this (A, B = fields): Dest. Frame 1: Source Field 1A, Source Field 1B Dest. Frame 2: Source Field 1B, Source Field 2A Dest. Frame 3: Source Field 2A, Source Field 2B Dest. Frame 4: Source Field 2B, Source Field 3A Dest. Frame 5: Source Field 3A, Source Field 3B Dest. Frame 6: Source Field 3B, Source Field 4A Dest. Frame 7: Source Field 4A, Source Field 4B etc. Basically, for slow motion you want as much temporal information as possible, and 60i gives you that.

July 21st, 2003, 11:56 AM	#495
Alex Knappenberger High School Student Join Date: Apr 2003 Location: Canton, Ohio, USA Posts: 609	For slow mo, it's best to use 33% and 66% for NTSC slow motion, since them numbers work the best. :D With Vegas 4.0 I can slow down to 33% with good results, but you'll notice some quality difference because Vegas has to "make" some extra frames and they aren't as sharp as the originals.