Carl Zeiss Distagon T 2,821 Lens Review and Specs

Zeiss Carl Distagon T 2,821 Pentax KAF Review

Main Features

21mm Focal Range

F2.8 Max Aperture

Filter Thread: 82mm

Max Format: 35mm FF

Pentax KAF Mount

Weight: 600g.

Diameter: 87mm

Length: 109mm

Min Focus Distance:0.22m

Max Magnification:0.2x

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Carl Zeiss Distagon T2,8/21 Overview

Carl Zeiss Distagon T2,8/21 is a Manual Focus (MF) Wideangle Prime lens with 35mm FF max sensor coverage and it is designed to be used with Pentax KAF mount lenses.

Lens Mount

Carl Zeiss Distagon T2,8/21 is compatible with cameras that have Pentax KAF lens mount.

Sensor Coverage

Max sensor coverage of Carl Zeiss Distagon T2,8/21 is 35mm FF.

Focal Range

Carl Zeiss Distagon T2,8/21 has a fixed focal lenght of 21mm. When mounted on a 35mm FF format camera, it provides an 35mm (FF) equivalent of 21mm.

Aperture

Carl Zeiss Distagon T2,8/21 has a max aperture of F2.8 and a minimum aperture of F22.0.

Pros and Cons of Carl Zeiss Distagon T 2,821

PROs

Hood supplied

Covers Full-Frame Sensor

CONs

No Autofocus

Carl Zeiss Distagon T2,8/21 Detailed Specifications

General
Brand	Zeiss
Lens Type	Prime
Lens Type	Wideangle Prime
Lens Mount	Pentax KAF
Max_Format	35mm FF
Focal Range	21mm
Image Stabilization	No
Colour	Unknown
Zoom Method	No Zoom
Power Zoom	No Zoom
Zoom Lock	No Zoom
Zoom Ratio	1.0X
APERTURE
Max Aperture	F2.8
Min Aperture	F22.0
Aperture Ring	Yes
Diaphragm Blades	unknown
Optics
Optical Elements	16
Optical Groups	13

FOCUSING
Min Focus Distance	0.22m
Max Magnification	0.2X
Autofocus	No
AF Motor Type	None
Full Time Manual	N/A
Focus Method	Unknown
Distance Scale	Yes
DoF Scale	Yes
PHYSICAL SPECS
Weight	600g
Diameter	87mm
Length	109mm
Materials	metal barrel, metal mount
Weather Sealing	Unknown
Filter Thread	82mm
Filter Notes	-
Hood Supplied	Yes
Tripod Collar	No

Carl Zeiss Distagon T 2,821 Alternatives in Pentax KAF Mount

	Coverage	Weight	Focusing	Street Price
HD Pentax DA 21mm F3.2 AL Limited	APS-C / DX	134gr	AF	Amazon B&H Photo
Pentax smc DA 21mm F3.2 AL Limited	APS-C / DX	140gr	AF	Amazon B&H Photo
Venus Laowa 25mm F2.8 2.5-5X Ultra Macro	35mm FF	400gr	MF	Amazon B&H Photo
Voigtlander 20mm F3.5 Color Skopar SL II	35mm FF	205gr	MF	Amazon B&H Photo
Samyang 24mm f1.4 ED AS UMC	35mm FF	580gr	MF	Amazon B&H Photo
Samyang T-S 24mm f3.5 ED AS UMC	35mm FF	680gr	MF	Amazon B&H Photo
Carl Zeiss Distagon T 2,825	35mm FF	480gr	MF	Amazon B&H Photo
Carl Zeiss Distagon T 3,518	35mm FF	470gr	MF	Amazon B&H Photo
Sigma 20mm F1.8 EX DG Aspherical RF	35mm FF	520gr	AF	Amazon B&H Photo
Sigma 24mm F1.8 EX DG Aspherical Macro	35mm FF	485gr	AF	Amazon B&H Photo
Rokinon 24mm f1.4 Aspherical	35mm FF	580gr	MF	Amazon B&H Photo
Samyang 20mm F1.8 ED AS UMC	35mm FF	497gr	MF	Amazon B&H Photo