Pentax 645 FA 200mm F/.4 Lens

Fixed focal-length. No zoom.Fixed focal-length. No zoom.Rectilinear are normal lenses that show straight lines as straight lines.Rectilinear are normal lenses that show straight lines as straight lines.Thread size in milimeters for screw-on filters.Thread size in milimeters for screw-on filters.58Autofocus LensAutofocus LensDiscontinued: No longer produced by the manufacturer. May still be in stock or found used.Discontinued: No longer produced by the manufacturer. May still be in stock or found used.

Lens Description

The Pentax 645 FA 200mm F/.4 is a short telephoto prime designed for cameras with a 645 (0.5X) sensor. This prime has a 200mm focal-length. It provides the same field of view as a 100mm lens on a Full-Frame camera.

This prime lens focuses down to 150cm from the imaging plane, capturing subject with a maximum 0.16X magnification. The lens can focus automtically with the Focus-Drive selected by the camera. While this lens is capable of AF, it does not have a built-in focus motor. It can only focus with a compatible camera body which features a mechanical AF-coupling.

The lens weighs 670g.

This lens is only available for the Pentax 645 mount. It directly attaches and is fully compatible with all Pentax 645 mount cameras with 645 (0.5X) or smaller sensors.

Pentax 645 FA 200mm F/.4
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Pentax 645 FA 200mm F/.4

Focal-Range

33mm600mm
200mm
FOCAL-RANGE OF Pentax 645 MOUNT LENSES WITH AT LEAST 645 (0.5X) COVERAGE

Angle-Of-View

5.2°90°
20°
ANGLE OF VIEW OF Pentax 645 MOUNT RECTILINEAR LENSES WITH 645 (0.5X)+ COVERAGE

Maximum Aperture

2.85.6
4
MAXIMUM APERTURE OF Pentax 645 MOUNT LENSES WITH AT LEAST 645 (0.5X) COVERAGE

Viewing Angle Range

Pentax 200mm F/4

Maximum Aperture

Compared to other Pentax 645 645 (0.5X) lenses.
20°
Max F/4

Magnification

0.11X1X
0.16X
MAGNIFICATION OF Pentax 645 MOUNT LENSES WITH AT LEAST 645 (0.5X) COVERAGE

Weight

215g4800g
670g
WEIGHT OF Pentax 645 MOUNT LENSES WITH AT LEAST 645 (0.5X) COVERAGE

Pentax 645 FA 200mm F/.4 Specifications

Brand Pentax Model 645 FA 200mm F/.4
Mount Pentax 645 AF2 Max FLM 0.5X
Focal Length 200mm View Angle 20°
Max ApertureF/4Min ApertureF/32
Min Focus150cmMagnification0.16X
Filter Size58mm Aperture Blades8
Size (D x L)75 x 119mm Weight670g
TiltN / A ShiftN / A
Stabilization ProtectionNone
Zoom Drive N / A Focus Drive Autofocus
Zoom Mechanism N / A Focus Mechanism Internal
Hood Bayonet Focus Motor External
Perspective RectilinearIntroduced2010-03-10

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Pentax 200mm F/4 Facts

Pentax 645 FA 200mm F/.4
Fixed focal-length. No zoom.Fixed focal-length. No zoom.Rectilinear are normal lenses that show straight lines as straight lines.Rectilinear are normal lenses that show straight lines as straight lines.Thread size in milimeters for screw-on filters.Thread size in milimeters for screw-on filters.58Autofocus LensAutofocus LensDiscontinued: No longer produced by the manufacturer. May still be in stock or found used.Discontinued: No longer produced by the manufacturer. May still be in stock or found used.
200mm Focal-Length F/4 Constant Aperture
58mm Filter Thread Autofocus
Pentax 645 Mount 645 (0.5X) Coverage
670g Lens Weight 75 x 119mm (D x L)
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