WIDE ANGLE, SHORT-THROW BARCO PROJECTION QFD 1.27:1 LENS.
SELLING AS IS,
AS DESCRIBED, AS MEASURED APPROXIMATELY, AS PICTURED.
INFINITY FOCUS near 50mm, FRONT ELEMENT D150mm+. REAR ELEMENT D88mm, REAR BARREL D101mm.
F#N BARREL TYPE LENS CALCULATION: for 50mm FPL:150mm=0.333.
CALCULATION: for 55mm FPL:150mm= 0.366.
METTERED THROUGH THE LENS ACTUAL FN# COULD BE DIFFERENT from GEOMETRICAL VALUE CALCULATION - near F0.8.
MY LONG ADAPTER IS TOO LONG, a near 77mm FOCAL PLANE DISTANCE for SONY A7 F.F. CAMERA 1" close.
ONLY 1" CLOCE UP DISTANCE WAS WORKING AS AN ADAPTER TOO LONG - MACRO TAKE ONLY /PHOTO PLACED/.
SECOND PHOTO A7 F.F. FOCAL DISTANCE SHORTENED & to 63mm FOCAL DISTANCE TAKE near 8m-11m WAS COVERED.
THIS DISTANCE (8m-11m) is 3m-5m LONGER than OPTIMISED for THIS LENS 5.84m
IT HAS LITTLE VIGNETTING, WHICH MAY BE REDUCED BY A SHORTENED ADAPTER.
NO DISTORTION!
IT IS POSSIBLE TO USE IT like a MACRO, CLOSE-UP LENS ONLY WITH 65-69mm+ FOCAL PLANE FITTING DISTANCE.
LENC IS VERY SENSITIVE TO FOCAL PLANE FITTING,
BUT IT IS QUITE USEFUL AS AN ULTRA-FAST CLOSE-UP. MACRO LENS.
SHORT THROW WIDE LENS OPTIMISED for CLOSE DISTANCES.
GLASS EX++ CLEN, CLEAR, NO FUNGUS, NO SCRATCHES. BARREL'S FRONT RIM IS A LITTLE BENT.
LENS FOCUSABLE 40"-230" SCALE = 1.01mm -5.84m.
HYPER FOCUSED - LARGE DOF for SUCH A LENS.
IMAGE CIRCLE NEAR 60-75mm - LIKE 645 - 66 FILM FORMAT.
MAX IMAGE CIRCLE NEAR 88mm+.
ADAPTING DIAMETER 4" fit 104mm ADAPTER RING.
WILL COVER SONY LARGE FORMAT DIGITAL SENSORS.
Sony IMX411 is a diagonal 66.7mm (type 4.2) CMOS active pixel type image sensor with a square pixel array and 151M effective pixels.
WILL FIT TO NIKON Z MOUNT CAMERAS with SHORTER ADAPTER.
WILL FIT TO FUJI GFX CAMERA with VERY SHORT ADAPTER.
HEAVY:9lb2oz /4.5kg/.