HD Pentax-DA AF REAR CONVERTER 1,4AW
The compact, high-performance rear converter which extends the focal length of the main lens by 1.4 times.This compact, high-performance rear converter not only extends the focal length of the main lens by 1.4 times, but also accommodates the flawless autofocus operation of the main lens, and features a dependable weather-resistant, dustproof construction for all-weather shooting.
HD Pentax-DA AF REAR CONVERTER 1,4AW
The compact, high-performance teleconverter for the APS-C sensor format extends the focal length of the lens by a factor of 1.4x, making it easy to extend the shooting range. All system functions, such as exposure metering and autofocus, are retained for easy and trouble-free handling.
Features
Exceptional optical performance
Thanks to its state-of-the-art optical design, this rear converter assures the exceptional optical performance that optimizes the potential of the main lens.
With the application of PENTAX-developed HD coating (a high-grade, multi-layer coating designed to minimize reflectance inside the lens while optimizing light transmittance) it lets the user capture crisp, high-contrast images free of flare and ghost images, even under such adverse lighting conditions as backlight.
*When this converter is mounted between a 35mm full-frame SLR camera body and a DFA-series lens, the image size is automatically cropped to the APS-C format.
HD Coating to enhance imaging performance
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The lens incorporates the PENTAX-developed, multi-layer HD (High Definition) Coating. Compared with conventional multi-layer coatings, it improves light transmittance while reducing average reflectance in the visible ray spectrum. This means that it can deliver clear, well-defined images with minimal flare and ghost images, even under demanding lighting conditions such as backlighting. |
1.4-times focal length extension for telephoto effect
By mounting this converter between the camera body and the main lens, the user can extend the focal length by 1.4 times. With the HD PENTAX-DA 55-300mmF4.5-6.3ED PLM WR RE zoom lens, the focal length is extended to 77-420mm. At just 20 millimetres long, it is compact and lightweight, allowing the user to reach more distant subjects more easily.
*When this rear converter is mounted, the lens maximum aperture will be smaller (darker) by 1 step.
| Unmounted | Mounted |
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The first PENTAX rear converter to provide AF compatibility
When coupled with an AF lens, the autofocus operation can be performed by the main lens. This rear converter works perfectly with both the camera-driven AF system and the lens-driven AF system (such as the SDM- and DC- series lenses).
Compatible camera bodies are: K-1 Mark II, K-1, K-3 Mark III / Monochrome, K-70, KP, K-3II, K-S2, K-S1, K-3, K-50, K-30, K-5 II, K-5 II s, K-5, K-01, K-7, and K-r.
*When this converter is mounted between a 35mm full-frame SLR camera body and a DFA-series lens, the image size is automatically cropped to the APS-C format.
Weather-resistant, dustproof construction for active outdoor shooting
Equipped with three airtight seals, this model is the first PENTAX rear converter with a weather-resistant, dustproof construction. By combining it with PENTAX’s weather-resistant, dustproof camera body and lens, the user can assemble a dependable digital imaging system that performs superbly even under harsh outdoor conditions, such as in the rain or in a cloud of dust or sand.
Please find more information about the Lens specification in our lens glossary ... (link)
Specification
HD PENTAX-DA AF REAR CONVERTER 1.4X AW
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Lens Type
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Rear Converter |
|---|---|
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Compatible Sensor Size
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APS-C |
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Magnification
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1.4 times |
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Lens construction
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4 elements / 3 groups |
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Lens Mount
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KAF2 |
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Diameter x length
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Approx.65mm x 20mm (2.6 inch x 0.8 inch) |
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Weight
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126g (4.4oz) |
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Usage environment
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Temperature: -10°C～40°C (14°F～104°F) Humidity: 85% or less (no condensation) |
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Weather Protection
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AW (All Weather) construction Using 3 sealing parts to prevent the intrusion of water and dust particles into the lens interior |
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Included Accessories
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Body Mount Cap Rear Cap K |
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Optional Accessories
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Softcase |
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Art. No.
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37962 (Black) |
Compatibility
AF Compatible Lens (2021 November)*1K-mount Lenses
*When this converter is mounted between a 35mm full-frame SLR camera body and a D FA/FA series lens, the image size is automatically cropped to the APS-C format.
◯: Compatible △: Compatible with condition
| Lens Name | Phase-matching AF | Contrast-detection AF |
|---|---|---|
| HD PENTAX-DA FISH-EYE10-17mmF3.5-4.5ED | △ | ◯ |
| smc PENTAX-DA FISH-EYE 10-17mmF3.5-4.5ED[IF] | △ | ◯ |
| smc PENTAX-DA 12-24mmF4ED AL[IF] | ◯ | ◯ |
| HD PENTAX-D FA 15-30mmF2.8ED SDM WR | ◯ | ◯ |
| smc PENTAX-DA 16-45mmF4ED AL | ◯ | ◯ |
| HD PENTAX-DA★16-50mmF2.8ED PLM AW | ◯ | ◯ |
| smc PENTAX-DA★16-50mmF2.8ED AL[IF] SDM | ◯ | ◯ |
| HD PENTAX-DA 16-85mmF3.5-5.6ED DC WR | ◯ | △ |
| smc PENTAX-DA 17-70mmF4AL[IF] SDM | ◯ | △ |
| HD PENTAX-DA 18-50mmF4-5.6 DC WR RE | △ | △ |
| smc PENTAX-DA 18-55mmF3.5-5.6AL WR | △ | ◯ |
| smc PENTAX-DA L 18-55mmF3.5-5.6AL | △ | ◯ |
| smc PENTAX-DA L 18-55mmF3.5-5.6AL WR | △ | ◯ |
| smc PENTAX-DA 18-55mmF3.5-5.6AL | △ | ◯ |
| smc PENTAX-DA 18-55mmF3.5-5.6AL II | △ | ◯ |
| smc PENTAX-DA 18-135mmF3.5-5.6ED AL[IF] DC WR | △ | ◯ |
| smc PENTAX-DA 18-250mmF3.5-6.3ED AL[IF] | △ | △ |
| smc PENTAX-DA 18-270mmF3.5-6.3ED SDM | △ | △ |
| HD PENTAX-DA 20-40mmF2.8-4ED Limited DC WR | ◯ | ◯ |
| HD PENTAX-D FA 24-70mmF2.8ED SDM WR | ◯ | ◯ |
| HD PENTAX-D FA 28-105mmF3.5-5.6ED DC WR | △ | △ |
| smc PENTAX-DA★50-135mmF2.8ED[IF] SDM | ◯ | ◯ |
| smc PENTAX-DA 50-200mmF4-5.6ED | △ | △ |
| smc PENTAX-DA 50-200mmF4-5.6ED WR | △ | △ |
| smc PENTAX-DA L 50-200mmF4-5.6ED | △ | △ |
| smc PENTAX-DA L 50-200mmF4-5.6ED WR | △ | △ |
| smc PENTAX-DA 55-300mmF4-5.8ED | △ | ◯ |
| smc PENTAX-DA L 55-300mmF4-5.8ED | △ | ◯ |
| HD PENTAX-DA 55-300mmF4-5.8ED WR | △ | ◯ |
| HD PENTAX-DA 55-300mmF4.5-6.3ED PLM WR RE | △ | ○*2 |
| smc PENTAX-DA★60-250mmF4ED[IF] SDM | ◯ | ◯ |
| HD PENTAX-D FA★ 70-200mmF2.8ED DC AW | ◯ | △ |
| HD PENTAX-D FA 70-210mmF4ED SDM WR | ◯ | ◯ |
| HD PENTAX-D FA 150-450mmF4.5-5.6ED DC AW | △ | △ |
| smc PENTAX-DA 35mmF2.8 Macro Limited | ◯ | ◯ |
| HD PENTAX-DA 35mmF2.8 Macro Limited | ◯ | ◯ |
| smc PENTAX-D FA MACRO 50mmF2.8 | ◯ | ◯ |
| smc PENTAX-D FA MACRO 100mmF2.8 WR | ◯ | ◯ |
| smc PENTAX-DA 14mmF2.8ED[IF] | ◯ | ◯ |
| HD PENTAX-D FA 21mmF2.4ED Limited DC WR | ◯ | ◯ |
| HD PENTAX-FA 31mmF1.8 Limited | ◯ | ◯ |
| smc PENTAX-FA 31mmF1.8AL Limited | ◯ | ◯ |
| smc PENTAX-FA 35mmF2AL | ◯ | ◯ |
| smc PENTAX-DA 35mmF2.4AL | ◯ | ◯ |
| HD PENTAX-FA 35mmF2 | ◯ | ◯ |
| smc PENTAX-DA 40mmF2.8 Limited | ◯ | ◯ |
| HD PENTAX-DA 40mmF2.8 Limited | ◯ | ◯ |
| HD PENTAX-FA 43mmF1.9 Limited | ◯ | ◯ |
| smc PENTAX-FA 43mmF1.9 Limited | ◯ | ◯ |
| smc PENTAX-FA 50mmF1.4 | ◯*2 | ◯*2 |
| smc PENTAX-DA 50mmF1.8 | ◯ | ◯ |
| HD PENTAX-D FA★50mmF1.4 SDM AW | ◯*2 | ◯*2 |
| smc PENTAX-DA★55mmF1.4 SDM | ◯*2 | ◯*2 |
| smc PENTAX-DA 70mmF2.4 Limited | ◯ | ◯ |
| HD PENTAX-DA 70mmF2.4 Limited | ◯ | ◯ |
| HD PENTAX-FA 77mmF1.8 Limited | ◯ | ◯ |
| smc PENTAX-FA 77mmF1.8 Limited | ◯ | ◯ |
| HD PENTAX-D FA★85mmF1.4ED SDM AW | ◯*2 | ◯*2 |
| smc PENTAX-DA★200mmF2.8ED[IF] SDM | ◯ | ◯ |
| smc PENTAX-DA★300mmF4ED[IF] SDM | ◯ | ◯ |
| HD PENTAX-DA 560mmF5.6ED AW | △ | ◯ |
| smc PENTAX-DA 40mmF2.8 XS | Attachment disapproved | Attachment disapproved |
| smc PENTAX-DA 21mmF3.2AL Limited | Attachment disapproved | Attachment disapproved |
| HD PENTAX-DA 21mmF3.2AL Limited | Attachment disapproved | Attachment disapproved |
| smc PENTAX-DA 15mmF4ED AL Limited | Attachment disapproved | Attachment disapproved |
| HD PENTAX-DA 15mmF4ED AL Limited | Attachment disapproved | Attachment disapproved |
| smc PENTAX-FA★24mmF2AL[IF] | Attachment disapproved | Attachment disapproved |
| smc PENTAX-FA 28mmF2.8AL | Attachment disapproved | Attachment disapproved |
| smc PENTAX-FA 20mmF2.8 | Attachment disapproved | Attachment disapproved |
| smc PENTAX-FA SOFT 28mmF2.8 | Attachment disapproved | Attachment disapproved |
| HD PENTAX-DA★11-18mmF2.8ED DC AW | Attachment disapproved | Attachment disapproved |
| smc PENTAX-FA 18-35mmF4-5.6AL | Attachment disapproved | Attachment disapproved |
| smc PENTAX-FA 20-35mmF4AL | Attachment disapproved | Attachment disapproved |
| smc PENTAX-FA 28-90mmF3.5-5.6 | Attachment disapproved | Attachment disapproved |
| smc PENTAX-FA 80-320mmF4.5-5.6 | Attachment disapproved | Attachment disapproved |
*1 Please note the following points when use HD PENTAX-DA AF REAR CONVERTER 1.4X AW.
Phase-matching AF: When you use the lens with "△" , rarely it will not in-focus with Phase-matching AF.
Contrast AF: When you use the lens with "△" , rarely it will not in-focus with Contrast AF.
Attachment disapproved: Do not attached to the lens as the lens might be damaged.
Open aperture will be one stop darker.
AF support confirmed model: K-1 Mark II/K-1/K-3 Mark III/KP/K-3II/K-3/K-70/K-S2/K-S1/K-50 (Update of latest body firmware is needed)
*2 Open aperture starts from F2.4.
