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 » » stupidoplhin | I am having massive problems getting the settings for a digital camera to input into match mover.
the camera I am using is
Sony_HVR-V1E
LENS - Carl Zeiss Vario-Sonnar T*
I need the film back size but all i get is the CCD info as follows
Image device
4.5 mm (1/4 type) 3CMOS sensor recording pixels (HDV/DV 16:9 still)
Max 1.20 Mega (1440x810)pixles *2
How do i work out the film back width and height from this?
I also need the focal length but the only info i get is
Lens
Carl Zeiss Vario-sonnar T*
20x (optical) approx 30x (Digital when D.extender is to to ON)
Focal Length
f= 3.9 - 78mm (5/32 ~ 3 1/8 in.)
when converted to a 35mm still camera *3
37.4 - 748 mm (1 13/16 ~ 36 in.) (4:3)
F1.6-2.8
Filter Diameter: 62 mm (2 1/2 in)
How do work out the focal length from this? The camera display shows me 1.8 when i change the focal length but where does it tell me what this corispondes to?
I would be extremely grateful for any help as I am stuck
Message edited by stupidoplhin on 10-04-2007 at 12:20:10 PM
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dingebre | Hi,
I am no expert here, but I think what is most important is that you maintian the proper aspect ratio for the film back more than the actual size. I ue a Sony HDR-HC7 and Tim on this list suggested I use a filim back of 6.3mm x 3.5437 (which gives the same ratio as 1920/1080). Since my lens is a 5.4 mm on wide where I typically shoot, I use that. Tim also suggested to set the focal length as constant (I don't zoom in for what I do) initialized and let MM solve for the focal length. This works great for what I do.
Good luck. ---------------
David
David M. Ingebretsen, M.S., M.E.
Collision Forensice & Engineering, Inc.
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timefx | Dear stupidoplhin,
I just posted a new thread in the "Tips and Techniques [MM]" section.
Try a FBW of 5.534mm x FBH 3.113mm.
If you use the zoom on its widest position, the focal length should be 3.9mm (leave the focal length value as "constant initialized" and let MM calculate the exact value)
I don't know if the mentioned "1.8" displayed relates to the zoom, but if it varies from 1 to 20, than it may be the multiplication factor (3.9x1.8 = 7mm) Otherwise try approximat guesses and let MM calculate this value.
I hope this helps.
If you are furthermore stuck, you can also send me your mmf-file with a sample footage and I will have a look at it.
Best regards
Tim
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