Anyone using a Letus with a Zoom lens? 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 October 4th, 2007, 05:46 PM   #1
Major Player
 
Join Date: Jul 2007
Location: Gainesville, VA, USA
Posts: 327
Anyone using a Letus with a Zoom lens?

I was thinking about using a Canon "L" series 70-200mm f/2.8 lens with a Letus. Seeing that the f stop is a constant across the zoom range and the Letus Extreme looses only half a stop...

I realize that the aperture will be fixed at f2.8 since this is an auto focus lens.

Quyen says there is no problem using a zoom and so I was wondering if anyone was already doing so and if so if there are any clips I can see.

I have a set of rails as well and so supporting the rig (lens, Letus Extreme etc.) shouldn't be a problem (3lbs for the lens and 3lbs for the Letus Extreme).

Any reason why I shouldn't be using a zoom?

Thank you for any replies/suggestions.

Shiv.
Shiv Kumar is offline   Reply With Quote
Old October 5th, 2007, 01:21 AM   #2
Major Player
 
Join Date: Nov 2006
Location: Munich Germany , Singapore ,NSW Australia
Posts: 419
check this clip by disjecta

http://www.pinelakefilms.com/XHA1/zoom.wmv

He used a cheap Tamron lens (with Canon EOS/EF fitting, the only zoom he had available). It's a 28-80mm f3.5-5.6 and has some serious softness on the edges...it is also soft around the edges when using it with a still camera so don't judge sharpness.

The weather was dull and wet and he was shooting out an office window with lots of reflection. He posting this because he want to demonstrate that there is no vignetting when using a zoom lens.
David Chia is offline   Reply With Quote
Old October 5th, 2007, 10:46 AM   #3
Major Player
 
Join Date: Jul 2007
Location: Gainesville, VA, USA
Posts: 327
David,

Thanks for the link. disjecta is Steven Demsy no?

I guess I'll have try for myself. With a good lens and good light.

Shiv
Shiv Kumar is offline   Reply With Quote
Old October 5th, 2007, 11:16 AM   #4
Major Player
 
Join Date: Nov 2006
Location: Munich Germany , Singapore ,NSW Australia
Posts: 419
Yup, he is,

I think it should work fairly good. I mean F2.8 if faster then the lens that disjecta used. Should work out fine.

I'm ordering mine soon before it goes up to $1500. By the way they are also giving out a free support bracket worth $50 for buyers that order now. I think it is a pretty good deal. Can't ask for more.
David Chia is offline   Reply With Quote
Old October 5th, 2007, 03:58 PM   #5
Major Player
 
Join Date: Jul 2007
Location: Gainesville, VA, USA
Posts: 327
Thanks for the heads up!

I didn't see that before. I guess diameter (15mm) of the rods on the rails are "standard"?
Shiv Kumar is offline   Reply With Quote
Old October 5th, 2007, 08:00 PM   #6
Inner Circle
 
Join Date: Nov 2005
Location: Elk Grove CA
Posts: 6,838
I have an older F 3.5 43-82 mm Nikkor that I just bought on EBay, and will be trying it out on my Letus 35a. I will keep you posted on what results are. I have already had on it briefly, and noted vignetting may create some issue..
__________________
Chris J. Barcellos
Chris Barcellos is offline   Reply With Quote
Old October 5th, 2007, 09:13 PM   #7
Major Player
 
Join Date: Jul 2007
Location: Gainesville, VA, USA
Posts: 327
Chris,

Thanks. Yes, please keep me posted.
Shiv Kumar 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 04:57 PM.


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