When using anamorphic... at DVinfo.net

Miguel Lopez · October 6th, 2004, 05:56 PM

hello everybody.

One quick question. if i buy the AG-LA7200 anamorphic adaptor and position the zoom at the widest focal lenght. will i see too much barrel distorsion or dark areas in the corners?

Where can i find a captured image on the wides zoom position?
And if i am not wrong, the magnification of this lense is 0.8x son at wider postiion the dvx should have around 26 mm (equivalent to 35mm), right?

Miguel Lopez · October 6th, 2004, 06:16 PM

Also, is it fully compatible with the canon xl1 lense as i read?

Barry Green · October 6th, 2004, 06:21 PM

There is no vignetting (dark corners) at full wide. There is some quite noticeable barrel distortion when at full wide.

It's not .8 magnification, it's actually .67. The anamorphic fits 33% more into your field of view.

It will only work in a limited zoom range on the XL1s. Anything past about 45mm will be quite difficult to get in focus.

Miguel Lopez · October 6th, 2004, 08:00 PM

Also, will be there less depth of field, since you are using a larger focal lenght to get the same shot, right?

This will increase cinematographic look.

Barry Green · October 7th, 2004, 12:00 AM

Yes and no. Mostly no.

The anamorphic is wider, so you do need to zoom in a little bit to maintain the same framing, which would give you shallower depth of field. But in order to get the lens to focus accurately you usually have to stop down a few stops, which will deepen the depth of field. In most circumstances DOF will be deeper with the anamorphic attached.

Miguel Lopez · October 7th, 2004, 04:26 AM

You mean i will not be able to shot at zoom 80 fro example with the iris at 2.8?

Stefan Scherperel · October 7th, 2004, 08:35 AM

Not if you want it in focus. The way that I use the animorphic is that I just use it on long and mid shots. Any closeup shot such as facial expressions or just something that requires a very shallow depth of field, I shoot in 4:3 and crop in post. For really tight shots, the cropped footage holds up quite well and is very detailed. Sure this is not ideal, however it works well and the longer and midrange shots benefit greatly from the adapter. Thanks again barry for your Anamorphic guide, I take it with to all my shoots.

Miguel Lopez · October 7th, 2004, 09:11 AM

Would this image be possible very near focus and the backgorund outfocused?

http://www.macgregorcorp.com/topgear/0Image3.html

If set the iris to 8 or 11 i would loose the effect, becasue everything will have focus.

Barry Green · October 7th, 2004, 11:01 AM

You cannot shoot with the anamorphic adapter at Z80 and f/2.8 and expect it to be in focus. You have to zoom out to about Z60 before you can open up to f/2.8, and even then you have to be focused near infinity.

If you want to understand all the issues involved, I suggest you order the guide in my signature line. I can try to spot-answer questions, but it took me 20 pages to explain everything about the anamorphic adapter, which is why the guide is available.

Stefan Scherperel · October 7th, 2004, 01:38 PM

You have a signature line now Barry? Wow! what else you got for us?

Stefan Scherperel · October 7th, 2004, 01:39 PM

Miguel
The image that you posted is a very wide angle image, yes you would be able to get an image like that with the anamorphic. You can definatly have the iris wide open when zoomed all the way out.

Barry Green · October 7th, 2004, 06:15 PM

Quote:

Originally posted by Stefan Scherperel : You have a signature line now Barry? Wow! what else you got for us?

In the next few days I'll be releasing a complete comprehensive book/DVD combo training guide to the DVX...

:)

Tim Borek · April 1st, 2006, 01:08 PM

Is Panasonic's 16:9 lens threaded for filters?

Barry Green · April 2nd, 2006, 01:19 AM

There are no threads. It's a rectangular front; lens threads are not possible.

October 6th, 2004, 05:56 PM	#1
Miguel Lopez Regular Crew Join Date: Mar 2003 Location: Madrid, Spain Posts: 187	When using anamorphic... hello everybody. One quick question. if i buy the AG-LA7200 anamorphic adaptor and position the zoom at the widest focal lenght. will i see too much barrel distorsion or dark areas in the corners? Where can i find a captured image on the wides zoom position? And if i am not wrong, the magnification of this lense is 0.8x son at wider postiion the dvx should have around 26 mm (equivalent to 35mm), right?

April 1st, 2006, 01:08 PM	#13
Tim Borek Major Player Join Date: Dec 2003 Location: Westfield, IN Posts: 353	Filters for AG-LA7200? Is Panasonic's 16:9 lens threaded for filters?

October 6th, 2004, 06:16 PM	#2
Miguel Lopez Regular Crew Join Date: Mar 2003 Location: Madrid, Spain Posts: 187	Also, is it fully compatible with the canon xl1 lense as i read?

October 6th, 2004, 06:21 PM	#3
Barry Green Barry Wan Kenobi Join Date: Jul 2003 Location: North Carolina Posts: 3,863	There is no vignetting (dark corners) at full wide. There is some quite noticeable barrel distortion when at full wide. It's not .8 magnification, it's actually .67. The anamorphic fits 33% more into your field of view. It will only work in a limited zoom range on the XL1s. Anything past about 45mm will be quite difficult to get in focus.

October 6th, 2004, 08:00 PM	#4
Miguel Lopez Regular Crew Join Date: Mar 2003 Location: Madrid, Spain Posts: 187	Also, will be there less depth of field, since you are using a larger focal lenght to get the same shot, right? This will increase cinematographic look.

October 7th, 2004, 12:00 AM	#5
Barry Green Barry Wan Kenobi Join Date: Jul 2003 Location: North Carolina Posts: 3,863	Yes and no. Mostly no. The anamorphic is wider, so you do need to zoom in a little bit to maintain the same framing, which would give you shallower depth of field. But in order to get the lens to focus accurately you usually have to stop down a few stops, which will deepen the depth of field. In most circumstances DOF will be deeper with the anamorphic attached.

October 7th, 2004, 04:26 AM	#6
Miguel Lopez Regular Crew Join Date: Mar 2003 Location: Madrid, Spain Posts: 187	You mean i will not be able to shot at zoom 80 fro example with the iris at 2.8?

October 7th, 2004, 08:35 AM	#7
Stefan Scherperel Major Player Join Date: Dec 2003 Location: Seattle WA Posts: 209	Not if you want it in focus. The way that I use the animorphic is that I just use it on long and mid shots. Any closeup shot such as facial expressions or just something that requires a very shallow depth of field, I shoot in 4:3 and crop in post. For really tight shots, the cropped footage holds up quite well and is very detailed. Sure this is not ideal, however it works well and the longer and midrange shots benefit greatly from the adapter. Thanks again barry for your Anamorphic guide, I take it with to all my shoots.

October 7th, 2004, 09:11 AM	#8
Miguel Lopez Regular Crew Join Date: Mar 2003 Location: Madrid, Spain Posts: 187	Would this image be possible very near focus and the backgorund outfocused? http://www.macgregorcorp.com/topgear/0Image3.html If set the iris to 8 or 11 i would loose the effect, becasue everything will have focus.

October 7th, 2004, 11:01 AM	#9
Barry Green Barry Wan Kenobi Join Date: Jul 2003 Location: North Carolina Posts: 3,863	You cannot shoot with the anamorphic adapter at Z80 and f/2.8 and expect it to be in focus. You have to zoom out to about Z60 before you can open up to f/2.8, and even then you have to be focused near infinity. If you want to understand all the issues involved, I suggest you order the guide in my signature line. I can try to spot-answer questions, but it took me 20 pages to explain everything about the anamorphic adapter, which is why the guide is available.

October 7th, 2004, 01:38 PM	#10
Stefan Scherperel Major Player Join Date: Dec 2003 Location: Seattle WA Posts: 209	You have a signature line now Barry? Wow! what else you got for us?

October 7th, 2004, 01:39 PM	#11
Stefan Scherperel Major Player Join Date: Dec 2003 Location: Seattle WA Posts: 209	Miguel The image that you posted is a very wide angle image, yes you would be able to get an image like that with the anamorphic. You can definatly have the iris wide open when zoomed all the way out.

April 2nd, 2006, 01:19 AM	#14
Barry Green Barry Wan Kenobi Join Date: Jul 2003 Location: North Carolina Posts: 3,863	There are no threads. It's a rectangular front; lens threads are not possible.