Pentax 645 FA 300mm F/5.6 ED IF 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.67Autofocus 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 300mm F/5.6 ED IF is a medium telephoto prime designed for cameras with a 645 (0.5X) sensor. This prime has a 300mm focal-length. It provides the same field of view as a 150mm lens on a Full-Frame camera.

This prime lens focuses down to 220cm from the imaging plane, capturing subject with a maximum 0.16X magnification. The lens supports autofocus and features a switch to disengage AF for focusing manually. 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 775g.

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 300mm F/5.6 ED IF

Focal-Range

33mm600mm
300mm
FOCAL-RANGE OF Pentax 645 MOUNT LENSES WITH AT LEAST 645 (0.5X) COVERAGE

Angle-Of-View

5.2°90°
10.5°
ANGLE OF VIEW OF Pentax 645 MOUNT RECTILINEAR LENSES WITH 645 (0.5X)+ COVERAGE

Maximum Aperture

2.85.6
5.6
MAXIMUM APERTURE OF Pentax 645 MOUNT LENSES WITH AT LEAST 645 (0.5X) COVERAGE

Viewing Angle Range

Pentax 300mm F/5.6

Maximum Aperture

Compared to other Pentax 645 645 (0.5X) lenses.
10.5°
Max F/5.6

Magnification

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

Weight

215g4800g
775g
WEIGHT OF Pentax 645 MOUNT LENSES WITH AT LEAST 645 (0.5X) COVERAGE

Pentax 645 FA 300mm F/5.6 ED IF Specifications

Brand Pentax Model 645 FA 300mm F/5.6 ED IF
Mount Pentax 645 Max FLM 0.5X
Focal Length 300mm View Angle 10.5°
Max ApertureF/5.6Min ApertureF/45
Min Focus220cmMagnification0.16X
Filter Size67mm Aperture Blades9
Size (D x L)75 x 184mm Weight775g
TiltN / A ShiftN / A
Stabilization ProtectionNone
Zoom Drive Mechanic Focus Drive AF with MF Switch
Zoom Mechanism N / A Focus Mechanism Internal
Hood Windowed Focus Motor External
Perspective RectilinearIntroduced2001-02-11

Updates

    2024.11.18

  • 2024.11.18

    Best 2024 Photography Gifts for Every Budget Update Poster

    Best 2024 Photography Gifts for Every Budget

    Great gifts for photographers and photo enthusiasts selected for every budget among the best products of 2024.

  • 2024.08.07

  • 2024.08.07

    Eye Protection Tips for Professional Photographers Update Poster

    Eye Protection Tips for Professional Photographers

    The four main considerations for professional photographers regarding eyewear.

  • 2024.07.14

  • 2024.07.14

    Fujifilm X100VI Review Update Poster

    Fujifilm X100VI Review

    Flagship fixed-lens compact digital camera with a 40 MP sensor and Image-Stabilization, a first for the series. Retro design featuring dual control-dials, plus direct ISO, Shutter-Speed and EC dials. Its hybrid viewfinder can switch between EVF and OVF mode.

  • 2024.05.09

  • 2024.05.09

    Fujifilm GFX100 II Review Update Poster

    Fujifilm GFX100 II Review

    Flagship 102 Megapixels Medium-Format Mirrorless Digital Camera with 8-Stop 5-Axis IBIS, 8 FPS Drive, 8K Video and 400 MP Super-Resolution capture in a weatherproof and freezeproof body with dual control-dials and dual memory-card slots.

  • 2024.04.03

  • 2024.04.03

    Fujifilm X-T5 Review Update Poster

    Fujifilm X-T5 Review

    Newest Fujifilm flagship boasting a 40 MP APS-C sensor, 5-axis IBIS with 7-stop efficiency, 15 FPS continuous drive, 6.2K Video capture, dual control-dials and dual SDXC UHS-II slots in a sturdy weatherproof and freezeproof body.

  • 2023.11.20

  • 2023.11.20

    Best Digital Cameras of 2023 Update Poster

    Best Digital Cameras of 2023

    Find out which are the Best Digital Cameras of 2023. All the new Mirrorless Digital Cameras from entry-level to high-end professional.

  • 2023.07.10

  • 2023.07.10

    Fujifilm X-H2 Review Update Poster

    Fujifilm X-H2 Review

    40 Megapixels APS-C Hybrid Mirrorless Digital Camera with 7-stop IBIS. Fastest shutter ever and 8K video capture. Large builtin EVF with 0.8X magnification and 5.8 MP, plus an Eye-Start Sensor. Packed with features and large number of controls in a weatherproof and freezeproof body.

  • 2023.05.07

  • 2023.05.07

    Sony FE 20-70mm F/4G Review Update Poster

    Sony FE 20-70mm F/4G Review

    Review of the unique Sony FE 20-70mm F/4G lens. The optical zoom of this lens spans ultra-wide-angle and medium focal-length coverage, making it one of the most versatile Full-Frame lenses on the market.

  • 2023.01.15

  • 2023.01.15

    Huion Inspiroy Dial 2 Review Update Poster

    Huion Inspiroy Dial 2 Review

    Review of the Huion Inspiroy Dial 2 tablet, a medium sized drawing surface with dual dials and customizable buttons. Connects via USB-C or Bluetooth 5.0 with Windows, Linux and Android support.

  • 2022.12.08

  • 2022.12.08

    How to Pack for a Photo Trip Update Poster

    How to Pack for a Photo Trip

    Find out how to pack for a travel photography trip, carry your gear safely while meeting airline regulations.

Please Support Neocamera

All information on Neocamera is provided free of charge yet running this website is a huge endeavor. Purchases made via affiliate links found throughout the site help keep it running and up-to-date. There is no additional cost to you, so please consider buying via these links to our affilates:

  • Best Buy Banner
  • Amazon Banner
  • Adorama Banner
  • Photography Store Banner

If you found any information on this site valuable and did not purchase via our affiliate links, please considering donating via PayPal:

Any amount will be greatly appreaciated. Thank you for your support!

Pentax 300mm F/5.6 Facts

Pentax 645 FA 300mm F/5.6 ED IF
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.67Autofocus 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.
300mm Focal-Length F/5.6 Constant Aperture
67mm Filter Thread AF with MF Switch
Pentax 645 Mount 645 (0.5X) Coverage
775g Lens Weight 75 x 184mm (D x L)

Camera Bag

Clear

Your camera bag is empty. To add a camera or lens click on the star next to its name.

Your camera bag is empty.

Add cameras or lenses by clicking on the star next to their name.

New Cameras & Lenses