Replacement filters for the PDW 700 at DVinfo.net

Gene Bauer · June 8th, 2009, 09:21 AM

Has anyone ever replaced the filters in the wheel on the PDW 700 with custom filters? I am getting requests from the DP's for a star filter.

Alister Chapman · June 8th, 2009, 01:56 PM

It's likely to use the same size filters as a Digibeta etc.

Andy Shipsides · June 9th, 2009, 06:04 AM

It can be done. I know filters from the F900R will work, not sure about DigiBeta. The process is pretty simple but should be done in a clean environment. Dust behind the filters is a killer. You may be able to get the same effect with filtration in front of the lens.

Gene Bauer · June 9th, 2009, 01:29 PM

Thanks , we'll investigate external options first. I was hoping for a premade product from a company like Tiffen but it looks likes it would have to be custom made.

Greg Boston · June 9th, 2009, 09:42 PM

Quote:

Originally Posted by Gene Bauer

Thanks , we'll investigate external options first. I was hoping for a premade product from a company like Tiffen but it looks likes it would have to be custom made.

The PDW-F800 has a star filter on the wheel. Perhaps you could get one of those and sub it out with one of the 700's ND filters. You'd have the bonus of putting glass in the wheel that was meant to be used on an HD camera.

-gb-

Warren Kawamoto · June 9th, 2009, 10:39 PM

A star filter works a lot better in the filter wheel than in front of the lens. A filter in front tends to be more "in focus", so you'll see the grid of the filter unless you're totally wide open on your iris.

Gene Bauer · June 16th, 2009, 12:27 PM

We pulled a cross filter out of a retired BVW D600 and it does fit. Put in place of the darkest ND filter(#4). It works fine..tested on jewelry. I'm going to try filters out of some BVP 570's but it looks like most of the recent 2/3 cameras have the same size filters.

Daniel Epstein · June 21st, 2009, 09:58 AM

Don't want to cause any problems but the physical size of the filter aside you might have some unintended resolution issues using an SD filter on an HD chip. May be fine but I would check it out very thoroughly before leaving it in all the time. Shoot some test charts and see. HTH

Alister Chapman · August 26th, 2009, 04:34 AM

I'de like to put in a darker ND! I was in Arizona last week and even with filter 4 was at F16 and suffering from diffraction softening, yuk! Ended up using -6db gain, but even then was at F11. The 700 really needs more ND. Might need to invest in some screw on ND's for shoots where the Matte Box is too bulky.

June 8th, 2009, 09:21 AM	#1
Gene Bauer Regular Crew Join Date: Feb 2008 Location: Tampa, Florida Posts: 28	Replacement filters for the PDW 700 Has anyone ever replaced the filters in the wheel on the PDW 700 with custom filters? I am getting requests from the DP's for a star filter.

June 8th, 2009, 01:56 PM	#2
Alister Chapman Inner Circle Join Date: Dec 2005 Location: Bracknell, Berkshire, UK Posts: 4,957	It's likely to use the same size filters as a Digibeta etc. __________________ Alister Chapman, Film-Maker/Stormchaser http://www.xdcam-user.com/alisters-blog/ My XDCAM site and blog. http://www.hurricane-rig.com

June 9th, 2009, 06:04 AM	#3
Andy Shipsides Sponsor: Abel CineTech Join Date: Feb 2009 Location: New York, NY Posts: 361	It can be done. I know filters from the F900R will work, not sure about DigiBeta. The process is pretty simple but should be done in a clean environment. Dust behind the filters is a killer. You may be able to get the same effect with filtration in front of the lens. __________________ Andy Shipsides -Camera Technology Specialist AbelCineTech, New York - Visit our Blog - http://blog.abelcine.com

August 26th, 2009, 04:34 AM	#9
Alister Chapman Inner Circle Join Date: Dec 2005 Location: Bracknell, Berkshire, UK Posts: 4,957	I'de like to put in a darker ND! I was in Arizona last week and even with filter 4 was at F16 and suffering from diffraction softening, yuk! Ended up using -6db gain, but even then was at F11. The 700 really needs more ND. Might need to invest in some screw on ND's for shoots where the Matte Box is too bulky. __________________ Alister Chapman, Film-Maker/Stormchaser http://www.xdcam-user.com/alisters-blog/ My XDCAM site and blog. http://www.hurricane-rig.com

June 9th, 2009, 01:29 PM	#4
Gene Bauer Regular Crew Join Date: Feb 2008 Location: Tampa, Florida Posts: 28	Thanks , we'll investigate external options first. I was hoping for a premade product from a company like Tiffen but it looks likes it would have to be custom made.

June 9th, 2009, 10:39 PM	#6
Warren Kawamoto Trustee Join Date: Nov 2006 Location: Honolulu, HI Posts: 1,435	A star filter works a lot better in the filter wheel than in front of the lens. A filter in front tends to be more "in focus", so you'll see the grid of the filter unless you're totally wide open on your iris.

June 16th, 2009, 12:27 PM	#7
Gene Bauer Regular Crew Join Date: Feb 2008 Location: Tampa, Florida Posts: 28	We pulled a cross filter out of a retired BVW D600 and it does fit. Put in place of the darkest ND filter(#4). It works fine..tested on jewelry. I'm going to try filters out of some BVP 570's but it looks like most of the recent 2/3 cameras have the same size filters.

June 21st, 2009, 09:58 AM	#8
Daniel Epstein Trustee Join Date: Jan 2006 Location: New York, NY Posts: 1,267	Don't want to cause any problems but the physical size of the filter aside you might have some unintended resolution issues using an SD filter on an HD chip. May be fine but I would check it out very thoroughly before leaving it in all the time. Shoot some test charts and see. HTH