BOLEX H16 to SUPER 16
Using 16mm film in Super16
format nothing comes even close to image quality in film projection or in
The quality of the digital image is directly
related to size of the film image area that is used for digital transfer. When
Super16 aperture format is used for 16x9 HDTV image transfer the available film
area is 31.38% larger over Standard 16mm for 16x9 aspect ratio. Full S16 frame
cropped to 16x9 aspect ratio the film area is 82.80sq.mm.
The Standard 16mm. frame for 16x9 aspect ratio the available film area is 56.84sq.mm. Super 16 format compared to
Ultra 16 the useful film area for 16x9 aspect ratio of Ultra16 frame is
13.43% smaller than S16 16-9 HDTV frame.
Note that for Ultra16 – 16x9 aspect ratio the
useful 9 side dimension can not be higher than 6.36mm (.250"), the distance in between sprocket
holes. The maximum width of (16 side) is 11.290mm. (.4444") so the maximum available film area is
71.69sq.mm. For calculations I used actual camera aperture size
and usable 16x9 aspect ratio. Some size
cropping may be required during digital transfer process, depending of equipment
used. The benefit of using Super 16 aperture format full frame or 16x9-HDTV
frame, the image area can be digitized to 2K file
which is standard for
Do your home work, the Ultra 16 film
format does not seem to be as good as spoken for. Note: The cost of camera is
least expensive part of low budget film making.
Bolex EL Super 16
REX 5-SUPER 16
13 X VIEWFINDER
13 X VIEWFINDER
Following images are to clarify some confusion
concerning Reflex-viewfinder magnification.
Bolex 13x viewfinder modified to match
with Super 16 aperture size. This work
is part of camera conversion to S16
format. This viewfinder was supplied
with the late model Rex 5, SBM, EBM
and all EL cameras.
A original 10x viewfinder, supplied with
Rex 2, 3, 4, SB and early versions of
Rex 5, SBM and EBM cameras.
|| This 6x viewfinder identifies
H16 Rex and Rex1 cameras.
Upgrade this small viewfinder with JK 14x
assembly. See the price list below
Up grade your camera to larger
and clearer viewfinder image.
|| An original Bolex 10x
to 13x view. Outside appearance is the same,
some internal components and optical element
are changed and relocated to enlarge the image area equal to 13x viewing.
Modification $ 245.00
JK viewfinder for Bolex H16 Rex camera
A complete 13x magnification viewfinder assembly. Available in 16mm or S16 formats. Including mounting screws and spacer plates.
Fits to all Bolex H16 Reflex cameras that have reflex front prism system
assembly but is missing Refflex-viewfinder.
Made by Meritex/JK
the S16 conversion without the ground glass markings deduct
In this option the viewfinder is
aligned with camera aperture using a full S16 frame mask only, located in the viewfinder system
other than ground glass.
Example: Bolex H16 Rex5, SBM, EBM having original 13x viewfinder system,
conversion to S16 format cost $985 - 165 = $820.00
This option does not apply to EL camera conversion.
16 ground glass markings
Optically enlarged image path for
viewfinder accommodating full view of Super 16 frame and cut
off lines for HDTV 16x9 frame size. The frame center gross hair
marking not included.
Super 16 conversion of Bayonet mount Bolex
Bolex SB, SBM, and EBM
camera conversions to Super 16 format. These bayonet mount cameras the lens mount is easily shifted
to 16mm or S16 aperture
center line, no need to open the camera lid. However, most of cameras we modify
are used for
Super16 format only and installed with S16 ground glass marking. You
select which one.EBM and EL cameras send for S16 conversion must be in good operation, we do not
the camera operating electronics.
Bolex EL conversion
is for Super 16 format only. Shifting the lens mount
back to 16mm position is more tricky and not recommended.
Conversion of: Bolex H body SB, SBM, EBM, EL
and Rex 5 all these model having the original 13X
Price is $985.00
The bayonet mount camera
having 10x viewfinder, add
$265.00 for 13x
Super 16 conversion of
turret mount Rex 3,
Rex 4, and Rex 5 cameras
The axel for the rotating turret plate is permanently relocated
to Super 16 position.
All three lens mounts are
fully functional for C-mount lenses.
Note that the lens that covers Super 16 frame can
be used to shoot regular 16mm format
without re-centering the lens to 16mm axes. Using lenses equal to Kern Switar's
quality of 16 mm. frame is equal to sprocket hole side corners of S16 frame.
The conversion work
requires relocation of turret plate assembly to lens center axes with expanded
Machining the aperture plate to S16 size. Machining the front block
clearance for relocating optical components,
image path clearance, masking and centering with
Super 16 frame.
The film transport
modification allowing scratch
free film travel for larger image area.
and EBM bayonet mount cameras the lens offsetting for Super 16 frame center
and 16mm frame
center is accomplished by relocating the bayonet
assembly. Operation: loosen four screws, shift the
assembly to appropriate
position for Super 16 or 16mm frame, retighten the screws. This can be
done without opening the camera lid.
The bayonet lens mount of the EL
camera is set to a fixed position in optical axes of the S16
To move the bayonet back to 16mm
aperture axes can be done but is not recommended.
What is included in Super 16 conversion:
Bolex H body cameras: EL, SBM, SB, EBM. Rex5 and Rex 4 These
camera conversions to
Super 16 format
includes inspection and lubrication of internal gear train and other mechanical
movements. This job is worth $185.
If part repair or replacement is required we will give a cost estimate before
proceeding with conversion work.
S16 conversion Work description:
For all models, 16mm aperture is machined to Super 16 aperture size. Machine
work is done to camera front block
assembly for relocation of beam splitter prism and rhomboid prism. Viewfinder optics are
realigned to match the
viewfinder image with S16 film gate. Film transport components require
clearance modification to film guides,
sprockets and aperture plate.
For turret mount cameras Rex 4 and Rex 5, a new turret axel is installed
to shift the turret c-mount holes to center
line of S16 frame, this makes 3 lens turret fully functional. This is a
permanent turret location.
EL, SB, SBM and EBM cameras. Bayonet lens mount assembly plate
is moved center axes with S16 frame.
It is possible to move this assembly back to 16mm axes if so desired.
Bolex H16 Camera
Bolex Rex 5, SB, SBM, EBM and EL having 13x viewfinder conversion to Super16 (All
Bayonet mount cameras)
All Bayonet mount cameras having 10x viewfinder conversion to Super
16 and 13x viewfinder
H16 Rex 4 and Rex 5 having 10x viewfinder, conversion to Super
H16 Rex3, Rex 4 and Rex 5 having having 10x view, conversion to Super 16
and to 13x viewfinder
All Bolex H16 Rex 2 and later
models, modify 10x viewfinder to 13x view
Bolex H8 Rex 4 & Rex 3 conversion to DS8
(The listed price includes lubrication service, value 195.00)
body S16 Rex
JK Camera Products