Inverted the HD100 VF for use with lens adapter at DVinfo.net

Ted Ramasola · March 3rd, 2007, 10:37 PM

I made a bracket that will hold the VF upside down so I can use focus assist when attaching my DIY lens adapter. I added a DIY hand grip so its easier to hold when shoulder mounted.

See pic;
http://tedramasola.9k.com/images/vf_...ip_500x202.jpg

Tim Dashwood · March 3rd, 2007, 10:50 PM

Very cool idea Ted. I'm going to move this over to Alt Imaging with a re-direct so those guys can see it.

Jad Meouchy · March 4th, 2007, 03:04 AM

DOF 120?

I can't seem to find any info about this adapter.

Ted Ramasola · March 4th, 2007, 05:49 AM

Jad,
Its my own DIY adapter. i called it DOF 120 because it uses lenses from my old medium format mamiya 645 camera that uses 120 film. I decided to go this route because of a bigger image cast on the GG. 45mm across to be precise.

here's a pic. you can go to http://tedramasola.9k.com/photo2.html for more info.

Sean Adair · March 4th, 2007, 09:32 AM

Ted, for some reason now I can't find the great images you had demonstrating the depth of field you acheived with your adapter.
I'm really impressed... I'd love to be putting my Mamiya 7 lenses to work like this. Of course, they are are slower than equivalent 35mm lenses, but maybe the larger image also means less light loss in conversion?
You should really consider manufacturing some of your creations for the new indie HD market!

Ted Ramasola · March 4th, 2007, 10:04 AM

Sean,

Thanks for your interest in that adapter.
I transferred the test shots here,
http://tedramasola.9k.com/photo3.html

I'll post some frames from an actual commercial, where we used this adapter, in a moment.

Ted

Ted Ramasola · March 4th, 2007, 10:08 AM

Sean,

Do you mean mamiya 67? Just curious because i'm using the ones from a 645, while i also have a lot of rb67 lenses, they are too big and their film plane is too far back which would make the adapter quite long and large.

Ted

Ted Ramasola · March 4th, 2007, 10:12 AM

Sean,

ok, I just found out theres a mamiya 7. yeah, that might work. smaller and shorter film plane.

Ted

Will Boggs · March 4th, 2007, 12:22 PM

Ted, It looks like the VF is still right-side up. Am I missing something here? Can you post a close up of the the inverter bracket? Thanks.

Ted Ramasola · March 4th, 2007, 05:53 PM

Will,

Sorry the pic were'nt clear, but here it is.

Ted

Will Boggs · March 4th, 2007, 09:41 PM

No need for an apology Ted, and thanks for posting a bigger pic. I get it now. This interests me because I am really leaning toward the HD110 to replace my DVX100A. I use a RedRock M2 for some shoots and want a VF solution to go from 35 adaptor to stock lens that is fast.

March 3rd, 2007, 10:37 PM	#1
Ted Ramasola Trustee Join Date: May 2005 Location: Allen, Texas U.S.A Posts: 1,117	Inverted the HD100 VF for use with lens adapter I made a bracket that will hold the VF upside down so I can use focus assist when attaching my DIY lens adapter. I added a DIY hand grip so its easier to hold when shoulder mounted. See pic; http://tedramasola.9k.com/images/vf_...ip_500x202.jpg Attached Thumbnails

March 3rd, 2007, 10:50 PM	#2
Tim Dashwood Wrangler Join Date: Aug 2005 Location: Toronto, ON, Canada Posts: 3,637	Very cool idea Ted. I'm going to move this over to Alt Imaging with a re-direct so those guys can see it. __________________ Tim Dashwood

March 4th, 2007, 05:49 AM	#4
Ted Ramasola Trustee Join Date: May 2005 Location: Allen, Texas U.S.A Posts: 1,117	Jad, Its my own DIY adapter. i called it DOF 120 because it uses lenses from my old medium format mamiya 645 camera that uses 120 film. I decided to go this route because of a bigger image cast on the GG. 45mm across to be precise. here's a pic. you can go to http://tedramasola.9k.com/photo2.html for more info. Attached Thumbnails

March 4th, 2007, 09:32 AM	#5
Sean Adair Major Player Join Date: Dec 2006 Location: New York, NY Posts: 463	Ted, for some reason now I can't find the great images you had demonstrating the depth of field you acheived with your adapter. I'm really impressed... I'd love to be putting my Mamiya 7 lenses to work like this. Of course, they are are slower than equivalent 35mm lenses, but maybe the larger image also means less light loss in conversion? You should really consider manufacturing some of your creations for the new indie HD market! __________________ Sean Adair - NYC - www.adairproductions.com JVC GY-HM-700 with 17x5 lens, MacPro 3.2ghz 8-core, 18gb. (JVC HD200 4 sale soon)

March 4th, 2007, 05:53 PM	#10
Ted Ramasola Trustee Join Date: May 2005 Location: Allen, Texas U.S.A Posts: 1,117	Will, Sorry the pic were'nt clear, but here it is. Ted Attached Thumbnails

March 4th, 2007, 03:04 AM	#3
Jad Meouchy Major Player Join Date: Dec 2005 Location: Los Angeles Posts: 663	DOF 120? I can't seem to find any info about this adapter.

March 4th, 2007, 10:04 AM	#6
Ted Ramasola Trustee Join Date: May 2005 Location: Allen, Texas U.S.A Posts: 1,117	Sean, Thanks for your interest in that adapter. I transferred the test shots here, http://tedramasola.9k.com/photo3.html I'll post some frames from an actual commercial, where we used this adapter, in a moment. Ted

March 4th, 2007, 10:08 AM	#7
Ted Ramasola Trustee Join Date: May 2005 Location: Allen, Texas U.S.A Posts: 1,117	Sean, Do you mean mamiya 67? Just curious because i'm using the ones from a 645, while i also have a lot of rb67 lenses, they are too big and their film plane is too far back which would make the adapter quite long and large. Ted

March 4th, 2007, 10:12 AM	#8
Ted Ramasola Trustee Join Date: May 2005 Location: Allen, Texas U.S.A Posts: 1,117	Sean, ok, I just found out theres a mamiya 7. yeah, that might work. smaller and shorter film plane. Ted

March 4th, 2007, 12:22 PM	#9
Will Boggs Regular Crew Join Date: Dec 2001 Location: Ada, Oklahoma Posts: 92	Ted, It looks like the VF is still right-side up. Am I missing something here? Can you post a close up of the the inverter bracket? Thanks.

March 4th, 2007, 09:41 PM	#11
Will Boggs Regular Crew Join Date: Dec 2001 Location: Ada, Oklahoma Posts: 92	No need for an apology Ted, and thanks for posting a bigger pic. I get it now. This interests me because I am really leaning toward the HD110 to replace my DVX100A. I use a RedRock M2 for some shoots and want a VF solution to go from 35 adaptor to stock lens that is fast.