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Teresa Binstock | profile | all galleries >> Photos taken with Panasonic Lumix Fz50 >> Aperture Tests at Two Focal Lengths tree view | thumbnails | slideshow

Aperture Tests at Two Focal Lengths

In the first series of photos, each was with Fz50 on tripod. Four shots were taken at a wide focal length, at widest aperture the camera selected, then at 6.3, 8.0, and 11. Then the four apertures were repeated at a telephoto focal length. Each image was imported into CS2 and only minimal functions were enacted: convert to sRGB, convert to 4x6 at 72 dpi. No image quality manipulations were enacted. The last series further cropped to 4x1.5.

Rosehips and Old truck:
An additional series of aperture tests follows in rows after the yellow signs. The image of the campground lanes is added just to keep the rows in sets of 4. The next shot was hand-held at large aperture. The next 12 images compare large and small (f11) aperture settings, all mounted on a tripod, Fz50 set to IS-2 because of direct pressing of shutter button.

Mountain trees.
An additional series of photos explores large apertures vs f11 apertures. Fast-H focus was used on each shot. A primary aspect of this series is the examination of trees image-quality when shot at a great distance, with aperture differences and corresponding shutter-speed distances potentially affecting image-quality of the trees.

Road signs at focus and closer to camera.
In one series, a blue road sign was the focus in each of the two primary photos. The scene was shot at f3.2 and f8. At f3.2, the cropped blue sign is clearer. At f8, the green Lake Five sign's printing is somewhat clearer. My preliminary interpretations is that at f8, the green sign finally was within the range of focus, which was not the case for the green sign during the f3.2 foto. The blurriness arises from the extreme cropping around the signs.

Click on an image to see a larger version.
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Test A1 P1020031.jpg
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zP1020107 Autumn at SanSuzEd - lanes to campsites and shelters.jpg
zP1020107 Autumn at SanSuzEd - lanes to campsites and shelters.jpg
zP1020108 - Fast-H focus hand held.jpg
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zP1020109 Fast-H focus tripod.jpg
zP1020109 Fast-H focus tripod.jpg
zP1020110 Fast-H focus tripod.jpg
zP1020110 Fast-H focus tripod.jpg
zP1020112 Rosehips large aperture - tripod.jpg
zP1020112 Rosehips large aperture - tripod.jpg
zP1020113 Rosehips f11 - tripod.jpg
zP1020113 Rosehips f11 - tripod.jpg
zP1020117 Old truck - large aperture - tripod.jpg
zP1020117 Old truck - large aperture - tripod.jpg
zP1020118 Old truck - f11 - tripod.jpg
zP1020118 Old truck - f11 - tripod.jpg
zzP1020117 Old truck - large aperture - tripod - crop-1.jpg
zzP1020117 Old truck - large aperture - tripod - crop-1.jpg
zzP1020118 Old truck - f11 - tripod - crop-1.jpg
zzP1020118 Old truck - f11 - tripod - crop-1.jpg
zzzP1020117 Old truck - large aperture - tripod - crop-2.jpg
zzzP1020117 Old truck - large aperture - tripod - crop-2.jpg
zzzP1020118 Old truck - f11 - tripod - crop-2.jpg
zzzP1020118 Old truck - f11 - tripod - crop-2.jpg
zzzzP1020117 Old truck - large aperture - tripod - crop-3 - size change.jpg
zzzzP1020117 Old truck - large aperture - tripod - crop-3 - size change.jpg
zzzzP1020118 Old truck - f11 - tripod - crop-3 - size change.jpg
zzzzP1020118 Old truck - f11 - tripod - crop-3 - size change.jpg
zP1020123 Mountain trees - tripod - large aperture.jpg
zP1020123 Mountain trees - tripod - large aperture.jpg
zP1020124 Mountain trees - tripod - f11 aperture.jpg
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zP1020126 Mountain trees - tripod - large aperture.jpg
zP1020126 Mountain trees - tripod - large aperture.jpg
zP1020127 Mountain trees - tripod - f11 aperture.jpg
zP1020127 Mountain trees - tripod - f11 aperture.jpg
zP1020128 Mountain trees - tripod - large aperture.jpg
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zP1020129 Mountain trees - tripod - f11 aperture.jpg
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zP1020131 Mountain trees - tripod - large aperture.jpg
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zP1020132 Mountain trees - tripod - f11 aperture.jpg
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zP1020133 Mountain trees - tripod - large aperture - mild photoshop.jpg
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zP1020134 Mountain trees - tripod - f11 aperture - mild photoshop.jpg
zP1020134 Mountain trees - tripod - f11 aperture - mild photoshop.jpg
zP1020156 Lake Five sign to sign to mountains.jpg
zP1020156 Lake Five sign to sign to mountains.jpg
zP1020158 Lake Five sign to sign to mountains.jpg
zP1020158 Lake Five sign to sign to mountains.jpg
xyzP1020156 Blue sign - focus target.jpg
xyzP1020156 Blue sign - focus target.jpg
xyzP1020158 Blue sign - focus target.jpg
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xyzP1020156 Lake Five sign to sign to mountains.jpg
xyzP1020156 Lake Five sign to sign to mountains.jpg
xyzP1020158 Lake Five sign to sign to mountains.jpg
xyzP1020158 Lake Five sign to sign to mountains.jpg
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