SGblade - photos of production version at DVinfo.net

Go Back   DV Info Net > Special Interest Areas > Alternative Imaging Methods

Alternative Imaging Methods
DV Info Net is the birthplace of all 35mm adapters.


Reply
 
Thread Tools Search this Thread
Old January 20th, 2009, 02:29 PM   #1
Major Player
 
Join Date: Jun 2005
Location: Brighton, East Sussex, UK
Posts: 938
SGblade - photos of production version

Hi Guys,

Here are some photos showing the production version of the SGblade with the new Rods Support System. We are getting close to shipping the first batch :D


Click Here for bigger version
http://www.sgpro.co.uk/bladeonrods_small.jpg


Click Here for bigger version
http://www.sgpro.co.uk/bladeflipped01_small.jpg


Click Here for bigger version
http://www.sgpro.co.uk/bladeflipped02_small.jpg


Click Here for bigger version
http://www.sgpro.co.uk/bladenonflipped01_small.jpg


Comments Welcome :)
__________________
Thanks,
Wayne.
Wayne Kinney is offline   Reply With Quote
Old January 20th, 2009, 09:32 PM   #2
Inner Circle
 
Join Date: Dec 2003
Location: PERTH. W.A. AUSTRALIA.
Posts: 4,356
Wayne.


It appears that the elves have been very hard at work in the dungeon. In appearance and presentation you have done well, a visually attractive package.

Out of curiosity, do you continue to recover a relatively large piece of the image area of the still-camera frame?
Bob Hart is offline   Reply With Quote
Old January 21st, 2009, 02:50 AM   #3
Major Player
 
Join Date: Jun 2005
Location: Brighton, East Sussex, UK
Posts: 938
Thanks Bob,

The Image area is 36x20, which is full frame in 16:9.
__________________
Thanks,
Wayne.
Wayne Kinney is offline   Reply With Quote
Old January 21st, 2009, 07:18 AM   #4
Major Player
 
Join Date: Feb 2006
Location: Louisville, KY
Posts: 591
very sexy! I want one!
Christopher Witz is offline   Reply With Quote
Old January 21st, 2009, 07:35 AM   #5
Inner Circle
 
Join Date: Dec 2003
Location: PERTH. W.A. AUSTRALIA.
Posts: 4,356
Wayne.

36mm x 20mm. That then puts you in the possible realm of 35mm into the SI2K if the resolution from your groundglass holds up as well as the evenness of light across the groundglass to the wider sensor.

The angles of incidence at the far edges must be a bit steeper than for a 1/3" sensor. There seems to be more of a tendency for brightness falloff for the same field of view of the groundglass.

45mm relay seems to be about the most predictable across a range of stills lenses for relay on the Letus Extreme and may hold true for your adaptor onto a 2/3" single sensor.
Bob Hart is offline   Reply With Quote
Old January 21st, 2009, 02:05 PM   #6
Inner Circle
 
Join Date: Nov 2005
Location: Elk Grove CA
Posts: 6,838
"The angles of incidence at the far edges must be a bit steeper than for a 1/3" sensor. There seems to be more of a tendency for brightness falloff for the same field of view of the groundglass. "


I was ponderting this, and I thought we may not notice it as much on 35mm film cameras because film has a wider latitude. Does that make any sense ?
__________________
Chris J. Barcellos
Chris Barcellos is offline   Reply With Quote
Old January 21st, 2009, 05:23 PM   #7
Inner Circle
 
Join Date: Dec 2003
Location: PERTH. W.A. AUSTRALIA.
Posts: 4,356
My guess is that the crystal grain structure of film emulsions has something to do with it. Each grain has multiple facets, one of which must face almost directly towards the incident angle, therefore harvests the light more effectively.

I also guess this is why there is the "grain" structure evident in film image when it is blown up enough.

Some crystals in centre do not take such a light hit head-on as others.

This might explain the ability of film to see deeper into blacks and tolerate over-exposure, film maybe having an inherent multiple ISO rating in its structure rather than a single number

If each pixel was a multifaceted diamond shape a sensor might work more like like film.

My wild imaginings here, no proven science whatever.

I was looking at some meduim format paper printed portrait enlargements yesterday from the seventies. That stuff was good wasn't it.
Bob Hart is offline   Reply With Quote
Old January 21st, 2009, 09:34 PM   #8
Inner Circle
 
Join Date: Nov 2005
Location: Elk Grove CA
Posts: 6,838
"I was looking at some meduim format paper printed portrait enlargements yesterday from the seventies. That stuff was good wasn't it."


I keep looking a my Kowa 6 sitting on the shelf, not getting any use, and wonder about building an adapter to use those lenses. Alas, I think I have enough problem keeping a 35mm lens in focus, that with the 6x6 lens, it would likely be a real bear...., and a heavy rig at that.
__________________
Chris J. Barcellos
Chris Barcellos is offline   Reply With Quote
Old January 22nd, 2009, 08:29 AM   #9
Regular Crew
 
Join Date: Oct 2004
Location: London, Antarctica
Posts: 199
Wayne, what kind of price will that elegant piece of kit be going at?
__________________
What are the Alternatives to YouTube?
Karel Bata is offline   Reply With Quote
Old January 22nd, 2009, 12:04 PM   #10
Major Player
 
Join Date: Jun 2005
Location: Brighton, East Sussex, UK
Posts: 938
Hi,

Online ordering and full pricing info is on our website.
__________________
Thanks,
Wayne.
Wayne Kinney is offline   Reply With Quote
Old January 22nd, 2009, 09:07 PM   #11
Inner Circle
 
Join Date: Dec 2003
Location: PERTH. W.A. AUSTRALIA.
Posts: 4,356
Chis.


Regarding the Kowa lenses.

You may be already aware, Ted Ramasola has already been there done that with medium format via a home made adaptor and one of Wayne's achromats.

The larger format gives you a distinct apparent resolution gain through scaling the "grain" smaller relative to the frame size, even if you have to sacrifice some of the image area to get inside brightness falloff.

I think the limited lens choices moved him back to 35mm stills Nikons. He kept his options open by making his adaptor dual format.

Last edited by Bob Hart; January 22nd, 2009 at 09:08 PM. Reason: error
Bob Hart is offline   Reply With Quote
Old January 26th, 2009, 08:36 PM   #12
New Boot
 
Join Date: Sep 2008
Location: Irvine, Ca
Posts: 7
Hey Wayne those look fantastic! I really love the colorway.
Justin Nguyen is offline   Reply With Quote
Old January 28th, 2009, 04:00 PM   #13
Trustee
 
Join Date: Aug 2006
Location: London UK
Posts: 1,939
How soon before they ship Wayne?

Look sexy as hell!
__________________
Philip Bloom
Cinematographer, Director, Filmmaker www.philipbloom.net
Phil Bloom is offline   Reply With Quote
Old January 28th, 2009, 04:08 PM   #14
Major Player
 
Join Date: Jun 2005
Location: Brighton, East Sussex, UK
Posts: 938
Hi Phil,

Hope to get them out the door next week :)
__________________
Thanks,
Wayne.
Wayne Kinney is offline   Reply With Quote
Old January 28th, 2009, 04:09 PM   #15
Trustee
 
Join Date: Aug 2006
Location: London UK
Posts: 1,939
it's like waiting for a kitten or puppy to be old enough so you can take it home!

Hope they are house trained!
__________________
Philip Bloom
Cinematographer, Director, Filmmaker www.philipbloom.net
Phil Bloom is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Special Interest Areas > Alternative Imaging Methods

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 03:42 AM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network