Rating a Cam w/DOF Adapter 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 March 4th, 2007, 11:55 PM   #1
Regular Crew
 
Join Date: Jan 2007
Location: Tampa, FL
Posts: 195
Rating a Cam w/DOF Adapter

How would you rate a naked (no taking lens) camera/adapter combo?

Can you do this without focusing on a chart?
It'd be nice to have a table of ISO ratings for various cam/adapter combos.
Jon Wolding is offline   Reply With Quote
Old March 5th, 2007, 01:26 AM   #2
Regular Crew
 
Join Date: Feb 2007
Location: Brooklyn NY
Posts: 128
You could just use the same lens on all the cameras, or even the equivalent. The difference between a 50mm f1.4 Nikon and the same Canon lens will be negligible in all but the most scientifically rigorous tests.
Charles Hurley is offline   Reply With Quote
Old March 5th, 2007, 06:52 AM   #3
Inner Circle
 
Join Date: Dec 2003
Location: PERTH. W.A. AUSTRALIA.
Posts: 4,356
INFO COURTESY OF A WEBSITE OF PETER GRAY DP WHO IN TURN ATTRIBUTES CLAIRMONT IN HOLLYWOOD FOR THE INFORMATION.

THIS INFO IS RELATED TO THE P+S TECHNIK PRO35.

CINE LENS STOP LIGHT LOSS LIGHTING LEVEL

T1.9 -1&2/3 STOPS needs T3.5
T2.0 -1&2/3 STOPS needs T3.6
T2.8 -1&1/3 STOPS needs T4.5
T4.0 -1 STOP needs T5.6
T5.6 -2/3 STOP needs T7.2
T8.0 -1/3 STOP needs T9.0
T11 -1/3 STOP needs T12.7
T16 NONE same T16
T22 NONE same T22

My imagining - and it is only subjective impressions from shooting with this adaptor, is the LETUS35 FLIP Canon XL and JVC GY-HD100 models probably perform similarly relating to light loss.

My own homemade with a AO5 dressed groundglass is about the same.

I'll leave it to the builders of the Brevis, SGPRO, Redrock M2 and others to make their own claims and to Quyen Le to correct any assumptions wrongly made by me about the LETUS35.

Last edited by Bob Hart; March 5th, 2007 at 07:01 AM. Reason: poor spelling
Bob Hart 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 06:27 AM.


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