LISTING FINAL UPDATE 12/28/2025.
SOFT - FINALLY ADAPTED to SONY.
A few (3) photos from the half-frame Sony a6500 PLACED, PROCESSED in Windows Photo Viewer.
Customized, selectively tall lens cap is included for the protection of the protruding rear element: photo #6...
ADAPTER NOT INCLUDED.
ADAPTER DESIGN WILL BE DISCLOSED TO an ACTUAL BUYER, IF NEEDED.
HUGE REAR ELEMENT,
ZERO VIGNETTING from LENS CENTER,
NO DISTORTION (0/D CENTER).
MAY BE FIT Hasselblad X2D II 100C Medium Format Mirrorless Camera.
WILL BE WORKINGON with ALL/ANY MIRRORLESS DIGITAL CAMERAS.
MAY BE FIT BEST to MOST CAMERAS with a FLAT FRONT: NIKON ZR, RED-Z mount, RED-L mount, GFX 55.
For SONY FX6 Full-Frame CAN BE FITTED NICE.
LISTING REVIEWED & UPDATED on 12/26/2025.
FACTORY NON-MARKED, MEASURED by THE SELLER, SOLD AS DESCRIBED.
HYPERFOCUSED FAST WIDE of 645, 66, 67 like...
ULTRA FAST f0.8 SOFT - MEDIUM FORMAT - WIDE ( for 66 & 67) ANGLE 60//65mm LENS.
I TESTED - FITTED to SONY A77II / HALF-FRAME/only at LONG 120mm FOCAL PLANE SET,
ASSUMED TECHNICAL VALUES
Of LENS TAKE near F1.2 for 4X5" MACRO FRAME (like 1.7 STOP+ ext. bellows factor ), so IT IS A CROP of THAT.
AT /NOT DEDICATED/ MACRO MODE - THE ONLY WAY MY EQUIPMENT ALLOWS ME TO APPROACH IT.
IT IS AN EXTREME CROP, MACRO, NOT-ADAPTED LENS HELD OVER THE TUBE.
IT IS A DISTANT WORKING DESIGNED LENS / NOT INTENDED for MACRO /
BUT MACRO WAS REASONABLY GOOD for EXREME FAST
& REASONABLY SOFT for CRITICALLY MADE CROPPING of 4X5".
2 PHOTOS TUNED UP IN "WINDOWS PHOTO" soft. are PLACED in the LISTING.
EX//VG+
BUHL Optical USA/ factory unmarked/ 65mm FLAT FIELD (COPY WORK FREANDLY) UHD PROJECTION.
FRONT ELEMENT HAS 1mm SCRATCH NOT AFFECTING USE by ANY WAY.
SOFT F1:0.8 ULTRAFAST 11-elements HD WIDE ANGLE PROJECTION LENS / NO X-RAY TYPE - BETTER! /.
BEST FOR MEDIUM FORMAT CAMERAS to be FITTED FOR.
CLEAN, CLEAR GLASS 1mm FRONT CENTER SCRATCHMARK, NO FUNGUS, NO DUST.
NOW a LOT of LENS-BOARD MAKERS on EBAY FROM USA, ITALY, CHINA -
IT is POSSIBLE TO ORDER a not expensive LENS-BOARD
FOR ANY 4X5", VIEW CAMERA,
CUSTOMLY MADE for DOUBLE DIAMETER FOR EASY FIT
REAR BARREL FITTING DIAMETER D85mm. REAR ELEMENT D75mm, FRONT D80mm. 100mm+ CIRCLE.
CALCULATED 65mm:80mm = f 0.8125 - roundly F0.8.
METTERED THROUGH THE LENS ACTUAL F/N# COULD BE A LITTLE DIFFERENT from GEOMETRICAL VALUE CALCULATION.
125mm LONG, BARREL D85mm.
W 5Lb - QUITE HEAVY.
I have a lot of BUHL Optical USA /factory non-marked/ lenses; they're just amazing!