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High performance medium telephoto macro lens optimised for digital cameras
MACRO 105mm F2.8 EX DG allows greater working distance between the lens and subject. High contrast and excellent image quality are made possible in all shooting ranges. This macro lens is ideal for digital SLR cameras as well as film SLR cameras.
This new medium telephoto macro lens employs a new design concept for digital SLR cameras. Its new lens power layout produces an excellent optical performance and also reduces flare and ghosting. This new lens is designed to reduce the influence of harmful light caused by reflections from the digital image sensor.
MACRO 105mm F2.8 EX DG lens is very suitable for taking pictures of nature and it enables to use of natural light conditions or flash.
The greater working distance of this lens is very advantageous when taking the picture of an insect or a flower among branches.
The narrow angle of view is a great aid for simplifying backgrounds and shallow depth of field makes it easier to handle the composition. This lens would have an equivalent field of view of a 178mm telephoto macro lens on a digital SLR camera (when used with the SD10).
Depth of field of medium telephoto macro lenses is generally very shallow; however, Sigma, Canon and Konica Minolta mounts of this lens have a minimum aperture of F45 (or F32 for Nikon and Pentax mounts) for incredible depth of field.
A screw-in hood is included, for convenient use of circular polarizing filters. It is possible to attach an 77mm filter in front of the lens hood.
This lens also incorporates a Dual Focus (DF) system that is designed to make the lens easy to hold during auto focusing. The large focus ring offers smooth and positive action whilst focusing manually.
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Lens elements 11 Lens groups 10 Optic angle in degrees (35mm) 23.3 Optic angle in degrees (SD format mm) 13,5 Number of diaphragm blades 8 Smallest diaphragm 45 Largest diaphragm 2.8 Shortest focus distance (cm) 31.3 Maximum enlargement 1:1 Filter size 58 Diameter (mm) 74 Length (mm) 97.5 Weight (g) 460 Zonnekap Yes Statiefgondel No Case Yes Converter No Mount Canon, Fuji, Konica/Minolta, Nikon, Olympus, Pentax, Sigma, Sony -
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MTF (Modulation Transfer Function; modulatieoverdrachtsfunctie) is een van de metingen die worden verricht om de optische prestaties van een objectief te bepalen. Men meet hiertoe het beeldcontrast bij verschillende ruimtelijke frequenties (lijnparen per millimeter).De horizontale as is verdeeld in millimeters en toont de afstand van het midden tot de rand van het beeld. De bijbehorende contrastwaarde (maximaal 1) is uitgezet op de verticale as.
De waarde bij 10 lijnparen per millimeter geeft het objectiefcontrast aan (rode lijntjes). De zich herhalende fijne parallelle lijnen bij 30 lijnparen per millimeter geven het scheidend vermogen (scherpte) van het objectief bij de volle opening aan.
De zich herhalende fijne parallelle lijnen die in de diagonale richting van de ene naar de andere hoek van het beeld lopen worden Sagittale lijnparen (S) genoemd. De lijnen die daar loodrecht op staan worden Tangentiale lijnparen (T) genoemd. -
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No service files have been found
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Available accessories
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Lens Hood LH580-02
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UV Multicoated filter 58mm
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Microfibercloth 31x31cm
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Polarisatie Multicoated circular slimline filter 58mm
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Front lens cap 58mm
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Back lens cap all types (Nikkon)
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Back lens cap all types (Canon)
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Back lens cap all types (Canon)
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Back lens cap all types (Sony)
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Back lens cap all types (Sigma )
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Back lens cap all types (Pentax)
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Back lens cap all types (Four Thirds)