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stacker:docs:tables:macromicrodof [2017/03/26 18:21] rjlittlefield tweak text for add-on closeup lenses |
stacker:docs:tables:macromicrodof [2019/12/12 22:50] rjlittlefield |
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| * All users of twist-to-focus macro lenses, except for modern Nikons. (There's a separate table below for them.) | * All users of twist-to-focus macro lenses, except for modern Nikons. (There's a separate table below for them.) | ||
| * All users of normal or enlarging lenses on bellows or extension tubes. | * All users of normal or enlarging lenses on bellows or extension tubes. | ||
| - | * All users of "reversed lens combos" (short reversed in front of long), when aperture is set on the front lens. | ||
| In most rows of the table, a range of values appears in bold face. If you're using a camera with an APS-C size sensor ("crop factor" 1.5 or 1.6), then you should pick a value near the middle of the bold range. Full-frame users should choose from the right side (larger f-numbers); Four-Thirds users choose from the left side (smaller f-numbers). Entries in italics should be avoided if possible because those combinations will lose significant sharpness from diffraction. | In most rows of the table, a range of values appears in bold face. If you're using a camera with an APS-C size sensor ("crop factor" 1.5 or 1.6), then you should pick a value near the middle of the bold range. Full-frame users should choose from the right side (larger f-numbers); Four-Thirds users choose from the left side (smaller f-numbers). Entries in italics should be avoided if possible because those combinations will lose significant sharpness from diffraction. | ||
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| * All users of add-on closeup lenses ("diopter filters"). | * All users of add-on closeup lenses ("diopter filters"). | ||
| * All users of "reversed lens combos" (short reversed in front of long), when aperture is set on the rear lens. | * All users of "reversed lens combos" (short reversed in front of long), when aperture is set on the rear lens. | ||
| + | * All users of "reversed lens combos", when aperture is set on the front lens AND effective aperture is calculated as front lens f-number * magnification. (Example: 50 mm f/5.6 on the front, 100 mm on the rear, magnification = 100/50 = 2, effective aperture = 2*5.6 = f/11.) | ||
| As before, a range of values appears in bold face. If you're using a camera with an APS-C size sensor ("crop factor" 1.5 or 1.6), then you should pick a value near the middle of the bold range. Full-frame users should choose from the right side (larger f-numbers); Four-Thirds users choose from the left side (smaller f-numbers). Entries in italics should be avoided if possible because those combinations will lose significant sharpness from diffraction. | As before, a range of values appears in bold face. If you're using a camera with an APS-C size sensor ("crop factor" 1.5 or 1.6), then you should pick a value near the middle of the bold range. Full-frame users should choose from the right side (larger f-numbers); Four-Thirds users choose from the left side (smaller f-numbers). Entries in italics should be avoided if possible because those combinations will lose significant sharpness from diffraction. | ||
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| ^ Table for new Nikon twist-to-focus lenses, add-on closeup lenses, and combos stopped in rear ||||||||| | ^ Table for new Nikon twist-to-focus lenses, add-on closeup lenses, and combos stopped in rear ||||||||| | ||
| - | ^ ^f-number shown on camera (Four-Thirds, APS-C, Full-Frame) |||||||| | + | ^ ^Effective aperture = f-number shown on camera (Four-Thirds, APS-C, Full-Frame) |||||||| |
| ^ Magnification ^ f/2.0 ^ f/2.8 ^ f/4.0 ^ f/5.6 ^ f/8.0 ^ f/11.0 ^ f/16.0 ^ f/22.0 ^ | ^ Magnification ^ f/2.0 ^ f/2.8 ^ f/4.0 ^ f/5.6 ^ f/8.0 ^ f/11.0 ^ f/16.0 ^ f/22.0 ^ | ||
| ^ 0.10 | 0.88 mm | 1.7 mm | 3.5 mm | 6.9 mm | **14 mm ** | **27 mm ** | **56 mm ** | //106 mm // | | ^ 0.10 | 0.88 mm | 1.7 mm | 3.5 mm | 6.9 mm | **14 mm ** | **27 mm ** | **56 mm ** | //106 mm // | | ||