Vintage Lenses
    M42Pentax K
    Prime
    Full frame

    Cosinon 50mm f/1.7 MC Auto

    3.6
    (2 reviews)
    Optical: 3.6
    Mechanical: 3.6
    Value: 3.3
    Focal Length
    50mm
    Aperture
    f/1.7-16
    Mount
    M42, Pentax K
    Cosinon 50mm f/1.7 MC Auto is a manual focus prime lens for full frame cameras.

    Optical design

    Wide open, subjects located outside the depth of field are shown very blurred. Has 6 aperture blades, this number of blades are commonly used. Having rounded blades provides out of focus circle shape closer to a circle.

    Physical characteristics

    With a lens filter diameter of 49 mm commonly filter size, offers a wide range of filter options. 45 mm long, this small lens should be always in the camera bag.

    Cosinon 50mm f/1.7 MC Auto purchase historyTrending down 2.0%/mo

    eBay Price HistoryeBay Auction (high-low)Linear trend

    Prices have been easing around 2.0% per month — sellers are flexible, aim for deals below $31.50.

    Fair value (90-day)
    $31.50
    Don't exceed (P75)
    $37.00
    All-time low
    $6.00
    Latest sale
    $28.00

    Best deals

    192 of 372 tracked sales (52%) closed at or under the $31.50 fair value.

    • Jul 5, 2025$6.00$-25.50 / typical
    • Jun 8, 2025$8.00$-23.50 / typical
    • Nov 20, 2024$9.00$-22.50 / typical
    • Jan 25, 2025$9.00$-22.50 / typical
    • Apr 28, 2025$9.00$-22.50 / typical

    eBay Auctions

    No active auctions found.

    Technical Specifications

    Optical
    Focal Length50mm
    Aperturef/1.7-16
    Min Focus Distance0.4m
    FocusingManual Focus
    Physical
    Length45mm
    Filter Thread49mm
    MountM42, Pentax K
    FormatFull frame

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    Reviews

    Dóra Oláh3.8/5

    Reviewer did not give any comments for Cosinon 50mm f/1.7 MC Auto

    Dóra Oláh3.4/5

    Reviewer did not give any comments for Cosinon 50mm f/1.7 MC Auto

    Frequently Asked Questions

    What is the Cosinon 50mm f/1.7 MC Auto?

    Cosinon 50mm f/1.7 MC Auto is a camera lens with 50mm focal length, a maximum aperture of f/1.7/16, for the M42, Pentax K mount, supporting the Full frame format.

    What mount is the Cosinon 50mm f/1.7 MC Auto compatible with?

    Cosinon 50mm f/1.7 MC Auto uses a M42, Pentax K mount and supports the Full frame format.

    How much does the Cosinon 50mm f/1.7 MC Auto cost?

    Based on recent eBay sold listings the Cosinon 50mm f/1.7 MC Auto typically sells for around $6.00. Actual prices vary with condition and seller.

    Is the Cosinon 50mm f/1.7 MC Auto a good lens?

    Cosinon 50mm f/1.7 MC Auto has a community rating of 3.6/5 from 2 review(s).

    Which lenses are similar to the Cosinon 50mm f/1.7 MC Auto?

    Similar lenses include Carl Zeiss Makro-Planar T 50mm f/2 Z, Carl Zeiss Ultron 50mm f/1.8 (Icarex 35), Isco-Gottingen Edixa ISCO-MAT 50mm f/1.9.

    Current Pricing

    Latest Price
    Price on request
    Find on eBay

    Review Summary

    Overall Rating
    3.4
    Optical3.6/5
    Mechanical3.6/5
    Value3.3/5
    Bokeh3.3/5
    Usability3.3/5
    Based on 5 reviewers

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