Hy6 Focus Tests after return from factory
AFTER HY6 WAS RETURNED FROM THE FACTORY BUT BEFORE PRESSURE PLATE ADJUSTMENTS
INTRODUCTION
Autofocus test of the Rolleiflex Hy6 (S/N 596540096) are described below.
The test pictures in this folder were conducted when the camera was returned to me from the factory and are a repeat of largely identical tests conducted before sending the camera to the factory for repair. The results show that the Hy6 focus behaves the same as in the earlier tests being unable to focus on a target 12 feet (3.66 m) away with any offset value from -30 to +30.
LINK TO FIRST SET OF TESTS (before sending to the factory):
Scans_of_Hy6_Test_Pix_for_Rollei/
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AUTO FOCUS AND OFFSET TEST
Date of test: 11/21/20.
Film was TMax 100 shot at EI 100 and developed in Xtol 1:1.
File numbers correspond to frame numbers. The first 7 shots are autofocus tests, the next 2 shots are manual focus tests using the slit image, and the last 3 shots are auto-focus tests that include an angled scale for detecting smaller focusing errors.
* The color picture (Nov_Test_Setup_1.JPG) shows the test arrangement.
* Camera was on a tripod.
* Focus area was set to "small" for these pictures as Eric recommended on 10/17/20. Subsequent tests showed that setting the focus area to "Full" actually exacerbated the autofocus inaccuracy in this particular scenario.
* The grid target was centered on the split image in the view finder.
* All pictures were exposed at 1/15 sec at f2.8.
* I defocused slightly before each shot so the camera would have to focus every time.
* Mirror was raised manually before each shot.
* Camera was set to single focus and was done focusing before I removed my finger from the focus button.
Hy6_Roll_5_11-21-20_post_factory_001.jpg Offset = -30
Hy6_Roll_5_11-21-20_post_factory_002.jpg Offset = -20
Hy6_Roll_5_11-21-20_post_factory_003.jpg Offset = -10
Hy6_Roll_5_11-21-20_post_factory_004.jpg Offset = -0
Hy6_Roll_5_11-21-20_post_factory_005.jpg Offset = +10
Hy6_Roll_5_11-21-20_post_factory_006.jpg Offset = +20
Hy6_Roll_5_11-21-20_post_factory_007.jpg Offset = +30
Hy6_Roll_5_11-21-20_post_factory_008.jpg Manual Focus w/80mm @ F2.8 at 65"
Hy6_Roll_5_11-21-20_post_factory_009.jpg Manual Focus w/80mm @ F2.8 at 65"
Hy6_Roll_5_11-21-20_post_factory_010.jpg Auto Focus w/80mm @ F2.8 at 65"
Hy6_Roll_5_11-21-20_post_factory_011.jpg Auto Focus w/50mm @ F2.8 at 46"
Hy6_Roll_5_11-21-20_post_factory_012.jpg Assisted Manual Focus w/40mm @ F3.5 at 37"
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All scans were done on an Epson V600 at a resolution of 2400 dpi, 16 bit grayscale scaled to approx 1200dpi by WP.
