Using a prism viewfinder to flip the Letus image at

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

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

Thread Tools Search this Thread
Old September 1st, 2006, 06:15 PM   #1
Regular Crew
Join Date: Jan 2006
Posts: 85
Using a prism viewfinder to flip the Letus image

Hi everyone,

Just an idea, was curious about whether anyone had tried this?

I just bought a Letus35A, which Quyen custom built to suit my Sony HVR-A1U. Thanks Quyen, you are a God-send to the extremly budget-conscious film-maker and a very patient man.

Obviously you cannot do the magnet trick on camera and I am already running into the well documented challenges of how to focus and frame the inverted image using the Sony's small screen and view finder.

I was tinkering with an old Canon F1 35mm still SLR last night, which has a removable prism viewfinder. Out of curiosity I flipped out the LCD, turned it face-up and layed the Canon prism on top.

Obviously it is much smaller than the LCD screen but obviously it flipped the image and did a remarkable job of resolving the image. It magnifies the LCD very sharply and there would be little doubt that this would also be a most effective focussing aid, only problem is that it only overs a small portion of the 16:9 LCD.

This got me thinking, there was a company called Bronica who made a large format still camera called the ETRS. This camera had a horizontally orientated 6cm x 4.5cm sized image and a a variety of interchangeable prism viewfinders. I think Mamiya also had one.

I don't know the exact dimentions of the viewfinders but looking at pictures, I'm betting there would be a close fit with with the Sony flip-out LCD, and was debating whether I could vecro one over the LCD and use it to get good framing and focus.

Weight might be a consideration but I'm betting that a non-metered version with a plastic housing wouldn't be a strain.

Obviously it would prevent access to the Sony's touch-senstive panel but I am sure it wouldn't be too difficult to work around this.

I don't think the view finder is exactly 16:9 but it should be close enough.

Thoughts anyone?
Paul Ramsbottom is offline   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

Omega Broadcast
(512) 251-7778
Austin, TX

(973) 335-4460
Mountain Lakes, NJ

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

(800) 238-8480
Glendale, 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



All times are GMT -6. The time now is 10:20 AM.

DV Info Net -- Real Names, Real People, Real Info!
1998-2015 The Digital Video Information Network